Characters / Sonic the Hedgehog — Modern Era Antagonists 1

aka: Sonic The Hedgehog Solaris

Sonic the Hedgehog characters index
Main Characters (Sonic the Hedgehog) | Recurring Characters (Team Dark) | Eggman Empire (Dr. Ivo "Eggman" Robotnik) | One-Shot Characters | Classic Era Antagonists | Modern Era Antagonists 1 | Modern Era Antagonists 2 | Other Groups and Species

With Sonic Adventure in 1998, a new formula for the franchise came in introducing antagonists that would take over the story, meaning Eggman wasn't the only threat Sonic had to face. These villains usually work for Dr. Eggman (willingly or otherwise), while he tries to harness their power for his own gain. Most of the time though, said power can prove to be too much for the doctor, so they just as often turn against him, sometimes even upstaging him as the Final Boss or main villain.

For villains introduced since Sonic Unleashed, see here.

Mainline Games

Chaos

^{Click here to see Perfect Chaos}

Debut: Sonic Adventure

A water being that originally acted as a guardian of Chao but went on a rampage when they were attacked by Pachacamac's clan and was sealed inside the Master Emerald by Tikal. Robotnik eventually set him free, but Sonic was able to calm him. Was the Final Boss of Sonic Adventure, and makes occasional other cameos.

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• Advertised Extra: Chaos was featured quite a bit in the promotional material for Forces. But in the actual game, he doesn't even have his own boss battle and gets dispatched quick and dirty by Classic Sonic in a cutscene.
• All There in the Manual:
  • The official Sonic Channel website says he's a Chao mutated by Chaos Energy. Most likely he could've mutated from a Neutral Chaos Chao, as they resemble a Ridiculously Cute Critter version of his base form. Though given certain revelations in Sonic Frontiers, it's most likely that Chaos is actually a devolved Chao.
  • The Japanese-only Sonic Adventure Operation Guide justifies his Disproportionate Retribution by claiming he was under the influence of the Chaos Emeralds amplifying his emotions.
• Ambiguous Situation:
  • Where exactly Chaos (and Tikal) are residing after the events of Adventure. Sonic admitted he didn't know in a Q&A during Sonic Heroes' development, lumping them in with other "forgotten" characters like Bark, Bean, Fang and Ray. Sonic Frontiers Prologue: Divergence implies they're both still hanging around Angel Island.
  • Sonic Frontiers introduces a few more questions regarding the God of Destruction. Namely, his relation to the nearly identical Ancients who introduced the Chaos Emeralds to the world. While Chaos looks quite a bit like them and Eggman states that Chaos is a genetic relative of the Ancients, he has a few notable differences to them—namely he has a visible brain instead of a Koco core and is proportioned similarly to Sonic and friends rather than being tall and lanky like the Ancients. Not to mention he seems to have far more control over his watery form than any of the Ancients show. This could be explained as Chaos being a Chao mutated by Chaos Energy instead of a true Ancient, but why the Emeralds' power transformed him into one of their long-dead protectors is never explained (though it is suggested through Chaos Chao that this can happen to any Chao).
• Art Evolution:
  • Perfect Chaos gets somewhat of a redesign in Sonic Generations, gaining a chitinous, reptilian scale-like armor on his back, a glowing orange brain and greenish energy emanating inside it. According to Word of God, this was how he was supposed to look like in Adventure, but the limitations of the Dreamcast was what forced Sonic Team to go with the less detailed model in that game, which presumably also leaked into the pre-rendered cutscenes with them having to use that design instead.
  • The advances in technology have really done wonders for his watery look, as seen in his appearance◊ in Sonic Forces.
• Attack Its Weak Point: All of his forms share one singular weakness; his exposed brain, the only part of his body tangible enough to attack.
• Attack of the 50-Foot Whatever: Chaos 0 is barely taller than Sonic. His Perfect form grows to be higher than a skyscraper.
• Behind the Black: As the enormous mutant Chaos 6, he's somehow able to sneak up on Knuckles before their Boss Battle without a sound.
• Berserk Button: Don't threaten Chao. Ever.
• Beware My Stinger Tail: Chaos 6 uses its tail as only one way of attacking.
• Beware the Quiet Ones: Chaos never speaks and is perfectly content to be left alone... until you harm the Chao. At which point, the only thing you can do is get your affairs in order.
• Big Bad Duumvirate: Alongside Eggman in Sonic Adventure, at least until he breaks control of the doctor.
• Blob Monster: Made primarily of water.
• Book Ends: Twofold. Sonic Adventure begins and ends with Sonic fighting him, in their normal and super forms, respectively. Things come even more to a full circle from a narrative standpoint by Sonic Frontiers. Not only are Chaos' origins explored, but the being whose actions set his tragic destiny in motion has been defeated, his desire to protect and avenge his kin has been fulfilled by the one who saved him from himself (Sonic), and all the characters who were involved in his story can now progress forward with their own separate paths, just as his actions helped shape their separate stories previously. The long journey begins, ends, and begins again with Chaos.
• Breath Weapon: Perfect Chaos can fire beams of energy from his mouth.
• The Brute: Chaos 2, who's more of a Top-Heavy Guy compared to his first two forms and gains a barrier move to shield from attacks.
• Chaos Is Evil: Presented as this at first in Adventure, but stops being hostile after being calmed down.
• Chekhov's Gunman: In the story contained in certain manuals for Sonic 3 & Knuckles, Knuckles confuses the fallen Death Egg for the egg from which a dragon prophesied to end the world will hatch. As the events of Sonic Adventure reveal, Perfect Chaos is that dragon, and its "egg" is the Master Emerald.
• Civilization Destroyer: Chaos wiped out the Echidna race thousands of years ago, and destroyed Station Square in the present day after becoming Perfect Chaos.
• Combat Tentacles: Chaos 6 and Perfect Chaos have watery tentacles that they can form to attack.
• Complete Immortality: Hinted. No matter what Sonic and Co. use on him in their battles against him (especially Super Sonic's), Chaos just reforms sooner or later. When Tikal meets up with Sonic at the flooded Station Square, she can only suggest to seal Chaos away again rather than destroy him. Sonic solves the problem by using the Chaos Emeralds' positive energy to calm the beast's heart combined with Tikal showing her old friend that peaceful coexistence between multiple species was possible.
• The Dark Side Will Make You Forget: Started out wanting to avenge the harm done to his friends, but eventually degenerated into just wanting to wreak havoc on the entire world.
• Demoted to Extra: He has no real role in Sonic Battle's plot; his appearance is just due to his popularity and for the sake of having Emerl copy skills from him.
• Depending on the Writer: Chaos' Competitive Balance and fighting style change radically from game to game.
  • In Sonic Adventure, Chaos Zero is a Fragile Speedster capable of moving respectably fast and leaping high into the air.
  • In Sonic Adventure 2, he's a Mighty Glacier Moveset Clone of Knuckles with slightly more punch range.
  • In Sonic Battle, he's still a Mighty Glacier, but now his Rubber Man characteristics have been exaggerated to the point of Bizarre Alien Biology, such as being able to leave puddles behind that will themselves attack other characters nearby.
  • In Sonic Forces: Speed Battle, Chaos attacks other players as An Ice Person.
  • In the initial planned team lineup of Sonic Heroes, he was supposed to form a team with fellow Sonic adventure characters Big and Gamma and be the speed character. This was scrapped during development.
• Destroyer Deity: Referred to by Eggman as "The God of Destruction". Considering everything he was capable of, especially after absorbing all the Chaos Emeralds and almost destroying the entire world the first time around, Eggman is more than right for the "destruction" part.
• Disproportionate Retribution: Pachacamac and his band of warriors raided the Master Emerald shrine to steal the emeralds, inadvertently slaying the innocent Chao who lived there in the process. Chaos responded by wiping out their whole civilization overnight and murdering almost every echidna, only for Tikal to stop him by reducing him to a Sealed Evil in a Can. When he was eventually broken out, he returned to his mass slaughter, this time against a completely unrelated civilization thousands of years removed from the ancient echidnas. The Sonic Adventure Operation Guide justifies this by asserting that Chaos's natural fury was amplified to berserker rage by the Chaos Emeralds and that the rage remained with him while he was sealed in the emerald.
• Doing In the Wizard: The games seem to portray him as an actual deity that the Echidnas worshiped, even though some sources confirmed he's just a mutated Chao. Frontiers expands on Chaos's lore by revealing that the Ancients are his distant ancestors, meaning he and his Chao brethren are actually descended from aliens. It's theorized that he's descended from another sect of the Ancients who broke off from the main branch in order to find the source of what pulled the Chaos Emeralds towards Earth, and when they found it, they settled around it and thus created the Master Emerald shrines. Over time, a mysterious radiation mutated their DNA to the point where they completely changed into the Chao we know today, but the Master Emerald had the ability to give one particular member a form resembling that of its ancient ancestors - the Chao that would become Chaos.
• The Dragon: To Eggman in Sonic Adventure. Elevates to Dragon-in-Chief after Eggman loses his grip on Chaos' reins and Perfect Chaos is realized.
• Dragon with an Agenda: He was in league with Eggman the whole time just to get a hold of the Chaos Emeralds, and when Eggman fails too many times, he decides to go at it alone.
• Driven to Villainy: According to the Sonic Adventure Operation Guide, Chaos's apocalyptic Unstoppable Rage was the result of the Chaos Emeralds amplifying his anger and driving him mad with fury.
• Easily Forgiven: In Sonic Adventure, while his rage against Pachacamac's war band for violating his Protectorate Chao was perfectly justified, Chaos' berserker rage led him to annihilate at least two entire cities filled with countless innocent people, which he's never been held accountable for. Takashi Iizuka later clarified in a Frontiers interview that most of the world is in fact still terrified of him.
• Eldritch Abomination:
  • His final form. It looks very much like Biollante, but with fewer tentacles, and being made of water instead of plant-materia. Its screams and roars are also rather Godzilla-esque.
  • Chaos is supposedly a Chao that was mutated eons ago. If that is the case, he has always been an Eldritch Abomination by that point.
• Ending by Ascending: Subverted, after being subdued by Super Sonic and seeing that Chao still coexist peacefully with the world, Chaos lets go of his hatred and seemingly ascends to heaven with Tikal. However, Sonic Battle and a promotional short for Sonic Frontiers would show both went back to Angel Island instead.
• Evil Knockoff: The Chaos shown in Sonic Forces is revealed to be a Virtual Reality construct created by Infinite with the power of the Phantom Ruby.
• Evil Makes You Monstrous: As Chaos absorbs the negative energy of the Chaos Emeralds, his transformations make him more bestial with each form. Chaos 1 and 2 simply have him grow larger with bone-like growths inside his arms, but by Chaos 4 he begins to resemble a water Shark Man, and Chaos 6 loses the humanoid form completely and is closer to a bloated scorpion/frog-like creature. And then Perfect Chaos goes both gigantic and outright draconic.
• Evolution Powerup: Chaos takes a new form every time he absorbs a Chaos Emerald—this gives him a total of eight, each designated by the number of emeralds he has (Chaos 0, Chaos 1, Chaos 2, etc.) except for his final form, "Perfect Chaos".
• Face–Monster Turn: Chaos Zero was originally the silent, peaceful guardian of the Master Emerald shrine and everything there. Then Pachacamac and his supporters raided the shrine and enraged him, initiating a chain reaction in which the Chaos Emeralds amplified his rage and drove him berserk. Chaos Zero then used the Emeralds to unleash his One-Winged Angel form.
• Fallen Hero: As revealed by Frontiers, he's actually a descendant of the Ancients, who are the Greater Scope Paragons of the franchise. Then Pachacamac and Knuckles's ancestors started attacking and killing his friends in their lust for power. He broke, and the rest is history.
• Fantastic Racism: According to supplemental material, Chaos witnessing his fellow Chao getting trampled by Knuckles Clan warriors enraged him to the point of despising all other species. When Super Sonic has triumphed over Perfect Chaos and Tikal talks to her old friend, she tells of how humans protected and adored Chao, showing that peaceful coexistence between different species is possible.
• Final Boss: Three times: Chaos 6 is the final boss for both Knuckles and Big, and Perfect Chaos is the true final boss that must be defeated as Super Sonic.
• Flat Character: While out for Revenge in Sonic Adventure, Chaos's personality is quite nondescript, not helped by his lack of expression and voice. Chaos' personality and general motives aren't explored in their own right so much as interpreted secondhand through Tikal.
• Foil: Sonic and Chaos are Downplayed Mirror Characters, both being blue with green eyes and a great affinity for the Chaos Emeralds, but with some serious differences as well.
  • From the Thematic Theme Tune of Sonic Adventure, "Open Your Heart," a Hero vs. Villain Duet that doubles as the theme of Perfect Chaos' Boss Battle:
    You and I are the same in the way that we have our own styles that we won't change.
    Yours is filled with evil and mine's not—there is no way I can lose.
  • The lyrics of Sonic's Image Song, "It Doesn't Matter," indicate Sonic doesn't dwell on the past because it prevents him from living life to the fullest—Chaos is motivated entirely by events that happened thousands of years ago.
  • Sonic and Chaos both use the same Green Rocks to change to a more powerful form, but Sonic enters his Super Mode using the hope and courage of a whole crowd, while Chaos uses The Power of Hate generated entirely by himself to become a One-Winged Angel (that said, Chaos performs a Heel–Face Turn later).
  • Frontiers reveals through his connection with the Ancients that he's this to Knuckles as well. Both of them were assigned by their people to be the guardian of the Master Emerald. Both are also effectively the last living members of their civilizations. Both even once worked for Dr. Eggman. However, Knuckles's reasons for continuing to guard the Emerald in the present day are not only out of a sense of duty, but also partially out of a desire to atone for the sins of his clan after he learns the truth about what they did in the past. Chaos had no knowledge of his species' history, simply guarding the Emerald in order to protect his kin until Knuckles's ancestors started attacking and killing them. The trauma of seeing his friends and family die drove Chaos insane with rage and grief, and he abandoned his peaceful duty as guardian to become feared as "the God of Destruction". Likewise, Knuckles was tricked by Eggman into thinking Sonic would steal the Master Emerald and aids him in slowing down Sonic until the Death Egg was repaired with the Master Emerald, causing Knuckles to realize he was played for a fool and aids Sonic in taking him down. Chaos worked with Eggman after he was freed from the Master Emerald so he can have all 7 Chaos Emeralds to go Perfect and destroy Station Square so the good doctor can build Eggmanland over its remains, though Chaos hands in his resignation to the Eggman Empire after Eggman fails one too many times against Sonic and his friends.
• Foreshadowing: Chaos was alluded to as early as the prologue in the manual for the Japanese and the western PC versions of Sonic the Hedgehog 3, where Knuckles speculated that the crashed Death Egg in the lake of the Floating Island was the egg containing a legendary dragon that was fated to destroy the world. Guess what Perfect Chaos resembles?
• Fragile Speedster: In Sonic Adventure when in forms Chaos Zero through Chaos Four, where it has powerful attacks and is capable of respectable mobility, but a single hit from Sonic, Knuckles, or Tails is enough to make it lose its grip on its current form and require it to reform. Averted in Sonic Battle, where Chaos is a Mighty Glacier.
• From Nobody to Nightmare: At first, he was just a mutated Chao living in peace with Tikal and other Chao. Then the rest of Pachacamac's clan tried to take the Chaos Emeralds for themselves, killing many Chao in the process. That resulted in Chaos earning his title.
• Go Mad from the Isolation: Frontiers heavily implies this with the heavy parallels it gives him with Knuckles. Unlike Knuckles who pressed on despite his lonely existence, Chaos is implied to fear the thought of being alone. That fear ended up creating a Self-Fulfilling Prophecy when he snapped and went on a rampage that hurt and killed everyone he ever cared about, then was sealed away in complete isolation with nothing but his negative emotions. By the time he finally got out, it was only natural he'd be more than a little unstable.
• Good Is Not Soft: He's pretty peaceful and friendly towards Tikal and the Chao. But if anyone harms them, he won't hesitate to kill. Pachacamac and Eggman both learned this the hard way.
• Guardian Entity: Chaos Zero's English profile on the old Sonic Team website for the multiplayer-exclusive Dark characters identifies it as "The Guardian Angel of the Chaos Emerald[s]." (The Japanese version describes it as the Chaos Emeralds' "Guardian Deity," instead).
• Hates Being Alone: New details and hints from Frontiers about his origins as well as parallels given to him with Knuckles heavily imply that deep down, this is Chaos's worst fear - that he doesn't have anyone to relate to or any place to belong. Seeing Tikal (the only one he could truly call a friend) and the other Chao (the only others he could call family and the only links to his origins) getting hurt and killed before his eyes triggered this deep-seated fear, and he went berserk. The rest is history.
• Heel–Face Revolving Door: Not unlike Shadow, he has gone through this. He started out as the guardian of the Emeralds and the Chao, then went berserk and become the antagonist in Sonic Adventure, before being pacified at the end of the game.
• Hellish Pupils: Perfect Chaos has reptilian eyes. They are highlighted in his introduction in both Sonic Adventure and Sonic Generations, with the pupils getting thinner as he sets his sights on the hedgehog.
• He Who Fights Monsters: Tried to avenge the Chao when they were attacked by a power-hungry tribe of Echidnas only for his anger to quickly go out of control; to the point where he wanted the entire world to feel his anger and sadness through destruction, inadvertently endangering the lives of more Chao.
• Immune to Bullets: At the beginning of Sonic's story in Adventure, a group of police attempt to shoot Chaos but retreat when they realize that their guns don't work. Justified as his body is made out of water, so bullets will just go right through him.
• Informed Attribute: In Sonic Adventure, Chaos's missing tail is so important that Eggman sends no less than four E-100 series robots to try and retrieve it. What effect it has on Chaos's ability is never clearly indicated, leaving it as little more than a MacGuffin and Excuse to keep Big and E-102 involved in the plot.
• Ironic Hell: Being sealed in the Master Emerald was this. In his rage at seeing his friends hurt and killed before his eyes, Chaos took thousands of innocent Echidna lives in turn, but his uncontrollable power as Perfect Chaos caused him to also hurt and kill the only beings he could call friends or family as well, and he had to live with that knowledge for thousands of years. Frontiers gives heavy implication that part of what caused him to snap is a latent fear of being alone, which made his imprisonment even worse because his berserk outburst led to him actually being alone.
• Irony: Dr. Eggman refers to it as the 'God of Destruction.' Not only is it not actually a god, it's not even naturally a destructive force - it's a guardian of the Chao. If anything, its generation makes it more of a science fantasy monster, being a devolved Ancient that interacted with radiation to take the form it now has. This only becomes extra ironic when Eggman attempts to awaken and direct Dark Gaia, an actual Destroyer Deity.
• It Can Think: Especially when he's shown to have feelings and when he goes rogue against Eggman in search for the Chaos Emeralds the second time around, making it clear that he's had enough of playing games.
• Kaiju: As Perfect Chaos, he could be a Shout-Out to famous Kaiju Biollante.
• Kill It with Ice: Chaos 6, in Sonic's and Knuckles' version of the fights, must be frozen with Eggman's bombs before being attacked.
• Knight of Cerebus: Chaos was the first significant Sonic antagonist to have no humorous quirks or traits whatsoever, and the threat he brought is far greater and darker than anything previously seen in a Sonic game. He's also the first character in the series to have (canonically) killed another character — specifically, he nearly drove the Echidna race to extinction.
• Last of His Kind: As revealed in Frontiers, Chaos is the last living descendant of the Ancients, the only living proof other than their technology that they existed.
• Leitmotif: He has this when fought as Chaos 0, 2, and 4. He gains a more imposing theme as Chaos 6. Strain also tends to play in cutscenes focusing on him.
• Logical Weakness: It may be a creature of mass destruction, but it is still made of water. Sonic and later Knuckles defeat Chaos 6 by freezing and then attacking it.
• Mad God: In Sonic Adventure. Of course, the "mad" in this case refers more to unquelled rage than actual insanity.
• Making a Splash: His trademark ability is hydrokinesis. His first form is only capable of manipulating his body and small puddles, but his "Perfect" form is able to flood Station Square indefinitely.
• Metamorphosis Monster: While infusing Chaos with one or two emeralds induces some mild Hulking Out, the stages that follow become Animalistic Abominations, with Chaos 4 gaining a sharklike tail, Chaos 6 becoming a Big Creepy Crawly, and Perfect Chos becoming a snakelike Rent-a-Zilla.
• Mighty Glacier: Especially in Sonic Battle. Next to Emerl, he's the strongest character in the game, but has the slowest walk speed and dash in the entire roster.
• Mini-Me: The Neutral Chaos Chao looks a lot like Chaos 0◊, just smaller, cuter, and more solid. It's possible to raise one of these from a Shiny Blue Chao to make the resemblance even more uncanny.
• Misplaced Retribution: To him, it doesn't matter that humanity had nothing to do with the attacks on his friends in the distant past, he wants to wipe them out regardless.
• More Teeth than the Osmond Family: Perfect Chaos has a lot of teeth.
• Mutants: He's a Chao that was mutated long ago.
• My Brain Is Big: Subverted: in his first form, his brain isn't really big, but it's still more visible due to his form. It does grow somewhat in size, though, when he eventually becomes his Perfect form. On top of that, it also glows.
• Names to Run Away from Really Fast: Chaos' name refers to his unpredictable and destructive behavior, although it also alludes to his relationship with the Chao and the Master Emerald.
• Not Evil, Just Misunderstood: Chaos' actions during the course of Sonic Adventure were fueled by his grief and desire to avenge the Chao he protected. He immediately calms down when Sonic, Tikal and the others show him that the Chao in the present day are living in peace and happiness.
• Not Himself: According to material contained in the Japan-only Sonic Adventure Operation Guide (translated here), Chaos's Unstoppable Rage was caused by the Chaos Emeralds amplifying his anger and driving him berserk. While Tikal succeeded in reducing him to a Sealed Evil in a Can, the amplified rage and hatred remained and wasn't purified until his fight with Super Sonic.
• Olympus Mons: Once a Chao, Chaos mutated into his current watery form thanks to prolonged exposure to the Master Emerald.
• One-Winged Angel: Has seven of these, each one stronger than the last, the transformations for which occur every time he absorbs a Chaos Emerald, culminating in Perfect Chaos. However, we only see five of these transformations (since Eggman starts giving him two emeralds at a time after Chaos 2) and Chaos 1 is The Unfought.
• Our Dragons Are Different: Perfect Chaos takes the shape of a giant reptile and attacks with Breath Weapons, but that's as close to a conventional dragon as it gets (it also fits the prophecy from the Japanese manual of Sonic 3 of the dragon who will end the world). Unlike conventional dragons, Chaos in all of its forms is a mass of living water.
• Outside-Genre Foe: Zig-Zagged. Whereas Eggman relied on machinery and simply intended to use the Chaos Emeralds as a means to an end, Chaos was the first major villain in the series to rely on (supposedly) supernatural powers to achieve his goals, and unlike the one-shaded goals of Eggman, Chaos is driven by a vengeful rage to use its power to destroy the entire planet. Even Eggman is left at his mercy when he reaches his full power as Perfect Chaos. He is also the first character in the series to have explicitly killed another character — specifically, he drove the entire Echidna race to near-extinction. The Japanese manuals for the classic trilogy at least foreshadowed his existence, but this backstory never made it to the English localization until Sonic Adventure, which made Western fans think the game arbitrarily turned into a Kaiju movie (and even then, environmental and anti-war messages are a staple of the genre, so it's not as much of a stretch as one might initially think).
• Out of Focus: Despite his Heel–Face Turn at the end of his debut game, he only rarely appears in the series, likely because it'd be hard to write plots where such an overpowered character would fit. Sonic Battle, one of his few non-cameo roles, tries to explain that he'll only intervene in times of great disaster, which is backed up in how he supposedly was responsible for keeping the oceans in place when the planet was split into several pieces by Dark Gaia like in the Archie adaption according to Ian Flynn. However, this raises the question of where he was when a space station was going to blow up the planet, or when Solaris was going to destroy all of time, etc. Even when given a starring role and marketed pretty hard in Sonic Forces, it turns out to all be a total lie — even sidestepping the fact that the Chaos in that game is an impostor made by Infinite, he only gets major focus in two cutscenes^note with all his cutscene appearances being pre-rendered, leaving Chaos with no gameplay presence, no in-game model, and unable to exist onscreen with the Avatar, and gets taken out in the second one — by Classic Sonic, of all people.
• Papa Wolf: To the Chao.
• Perpetual Frowner: Has a permanent glare.
• Person of Mass Destruction: His Perfect Chaos form, demonstrated when he flooded Station Square with ease and would have done the same to the world if he wasn't stopped.
• Physical God: Known as the God of Destruction.
• Plot Armor: Chaos enjoys some Cutscene Power to the Max during the Super Sonic Story of Sonic Adventure, quickly and effortlessly seizing all seven chaos emeralds and steamrolling Eggman and Knuckles in the process despite Chaos losing to the latter in its second, fourth, and sixth Evolutionary Levels.
• Promoted to Playable: In some games he appears in, such as Sonic Adventure 2 and Sonic Battle.
• Puzzle Boss: Chaos 6. When fought with Sonic and Knuckles, he has to be frozen before you can even attack him, while Big's version of the Chaos 6 battle has him try to fish Froggy out, which can either be ended in under 10 seconds, or be a long drawn-out struggle with rarely any chance to attack.
• Recurring Boss: The most recurring boss in Sonic Adventure, fought multiple times in multiple forms, with multiple characters.
• Rent-a-Zilla: Chaos's ultimate form is a serpentine Kaiju, but no real reason is ever given for it besides Rule of Cool.
• Reptiles Are Abhorrent: Perfect Chaos, which gains a lot of reptilian features to the point of looking like a Sea Monster.
• Riddle for the Ages:
  • Chaos 3 and Chaos 5 never appeared, so what they look like is anyone's guess.
  • Chaos's tail is also separated from its body for most of the game, so what effect it would have had on any of the forms prior to Chaos 6 is also unknown.
• Sanity Slippage: Perfect Chaos is heavily suggested to be suffering this by the dark, monotone lyrics of the chorus for "Open Your Heart," its Battle Theme Music.
  Can't hold on much longer... Close my eyes and feel it burn....
• Science Fantasy: While Chaos at first blush seems purely a creature of fantasy, it does have a hint of science-fiction in its design—its brain and brainstem are clearly visible in all of its forms, no matter what form the Blob Monster takes.
• Sealed Evil in a Can: Chaos was sealed in the Master Emerald by Tikal for thousands of years due to him going berserk, only to be freed by Dr. Eggman when he shatters the Master Emerald. It should be noted, however, that Chaos isn't actually evil — just angry and vengeful.
• Semi-Divine: May as well be the case as despite having near supernatural powers, it's otherwise stated that he was just a mutated Chao.
• Shapeshifter: By virtue of his water-based form.
• Shout-Out: Perfect Chaos is very similar to Biollante, with the redesign in Sonic Generations further adding to this.
• Sickly Green Glow: Perfect Chaos' Generations design has him glow greenish energy from the inside. The same applies to his teeth.
• Silent Antagonist: Chaos has absolutely zero dialogue and the only noises he makes are roars as Perfect Chaos.
• Sinister Scythe: In a very bizarre and surreal Transformation Sequence as Chaos 6. He shapeshifts into a sort of vase thing, shoots tendrils everywhere to corner the player character, then slashes downward with his tail that forms into a glowing scythe.
• Some Kind of Force Field: Chaos 2 can project a barrier during the boss fight.
• The Speechless: Though Chaos never talks, he is able to communicate with Tikal through ripples in the water. Though what he says isn't translated, however.
• The Starscream: Attacks Eggman when going after the Emeralds again; he was just waiting for the perfect opportunity to steal them all and become his final form.
• Suicidal Cosmic Temper Tantrum: The chorus of "Open Your Heart," which uses dark, monotone lyrics to depict Perfect Chaos and its perspective, strongly suggests that Perfect Chaos is losing his mind to the Power High^note Can't hold on much longer... Close my eyes and feel it burn...., which further suggests that it's willing to suffer Death of Personality so long as its Revenge against the world is carried out.
• Super Mode: Perfect Chaos is Chaos' equivalent of the Super State, at least through the Chaos Emeralds' negative energy. It's currently unknown if Chaos reacts to their positive energy like the other characters with Super States do or assumes his Perfect form either way.
• Super Not-Drowning Skills: While it's very situational, he can't drown in Sonic Adventure 2. Justified, since he's made of water.
• Tactical Suicide Boss: Justified in that it's Eggman's fault, not Chaos', but Chaos 6 would be impossible for Sonic or Knuckles to beat if Eggman didn't try to give Chaos reinforcements... in the form of small robots with cryokinetic properties. One has to wonder what Eggman was thinking when he built robots that could freeze water around the time he decided to try and control a creature made of water. Likewise, Chaos 4 would prove aggressively difficult for Sonic, Tails, and Knuckles to combat if it didn't occasionally surface in Mystic Ruins' lake and leave itself open.
• Threatening Shark: Chaos 4 has a shark-like body and fights the main Power Trio in a pond while darting around underwater, only vulnerable when he surfaces.
• True Final Boss: In Sonic Adventure, his Perfect form can only be fought after every playable character's story has been completed, upon which Super Sonic's story is unlocked.
• The Unfought:
  • None of Chaos' odd-numbered forms are ever fought, and of them, only Chaos 1 is ever seen. Eggman doesn't sic him on Sonic and Tails after he steals their Chaos Emerald, and when Knuckles corners Eggman in the Station Square hotel, the doctor feeds Chaos another Emerald before sending him to attack the echidna.
  • In Forces, he and Shadow are the only members of Eggman's team to not be fought.
• The Unseen: Two of Chaos' Evolution Powerups, Chaos 3 and Chaos 5, have never been seen. Sonic Adventure skips them entirely by having Chaos eat most of the emeralds in pairs and jump from Chaos 2 to 4 and 6.
• Unstoppable Rage: Extra emphasis on rage. Harming Chao will turn Chaos genocidal.
• Walking Spoiler: Chaos is such a big player that describing his involvement in any game often involves details about the climax. And that's not getting into exactly who and what he is after the reveals in Frontiers.
• Waterfront Boss Battle: In Adventure, Chaos 4 is fought while it swims around in swamp water. Because it sometimes takes a while for him to pop out of the swamp, he can on occasion be one of the longest boss fights in the game.
• We Hardly Knew Ye: In Forces, Chaos only appears in one cutscene on his own and isn't seen again until the war sequence near the end of the game after being defeated by Classic Sonic.
• Well-Intentioned Extremist: His turn into an antagonist was triggered by a power-hungry tribe of Echidnas trying to steal the Chaos Emeralds, and killing several Chao via trampling in the process. While his desire was to avenge the Chao, his anger quickly went out of control to where he wanted the entire world to feel his anger and sadness through destruction.
• What Happened to the Mouse?: Despite Chaos' missing tail being important to several major characters and the fact that his tail plays a big part in his Boss Battle as Chaos 6, his future appearances all seem to neglect depicting him with his tail in earlier states. Does he just not show a tail naturally?
• Woobie, Destroyer of Worlds: He was a Chao that at some point was mutated by chaos energy, turning him into a copy of the Ancients, the Chao's ancestors who were wiped out by THE END, effectively making him the Last of His Kind. After gaining a persistent fear of loneliness as a result, he made it his sole duty to protect the other Chao from any threats he perceived so they wouldn't meet the same fate, and was initially peaceful towards most people as shown with Tikal. When Pachacamac's clan went for the Emeralds and killed some Chao in the process, he went into a total genocidal rage and was forced to be sealed inside the Master Emerald by Tikal so the whole world wouldn't be destroyed. He then proceeded to Go Mad from the Isolation and eventually broke free, now desiring nothing more than to gather the power of the seven Emeralds and rampage across the world for what the world did to him.
• You Are What You Hate: He hates anyone who would harm Chao. Yet when the Echidna Tribe threatened the lives of his friends, he proceeded to go insane and wipe out the entire Echidna race... the very same thing THE END did to his ancestors. Then when his anger quickly went out of control in Sonic Adventure, he inadvertently threatens the lives of the Chao when he ruins Station Square and the Chao Garden it contains.

Pachacamac

"Tikal, the seven Emeralds are essential to our survival. It is for the good of all our people."

Debut: Sonic Adventure

Voiced by: Tōru Ōkawa (Japanese), Steve Broadie (English)

The leader of the Knuckles Tribe and father of Tikal, he made Chaos angry. His sole appearance in the games is Sonic Adventure, where his actions are revealed to be the mainspring of the game's conflict.

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• Abusive Parents: It says a lot when he's willing to have his soldiers trample his own daughter in his pursuit of power.
• Anti-Villain: He did what he did because he believed the spoils of war made the entire tribe more prosperous. The non-canon Sonic Chronicles would try to justify his actions further by revealing their rival echidna tribe, the Nocturnus Clan, was going to wipe them out with the power of their superior technology and especially the Gizoids, and he needed the Chaos Emeralds to fight them on equal footing...at the cost of Chaos's wellbeing.
• Asshole Victim: He fits this trope to a T, especially with Sonic Chronicles offering a more sympathetic motive being considered non-canon. He and his troops trampled dozens of innocent Chao and even his own daughter just to get at the Chaos Emeralds and gain power and satisfy his bloodthirsty need for conquest. He and his tribe got murdered by an angry water god who was the last descendant of the Ancients for their troubles.
• Big Bad Wannabe: A power monger who was willing to brutalize a peaceful group of Chao and his own daughter to obtain the Chaos Emeralds so his tribe would have absoulte power, only to be left at the mercy of a furious water god in retaliation. He is the entire reason the echidna species was nearly wiped from existence, and while Chaos is still The Dreaded in present day, the only reason anyone knows of Pachacamac's tribe is as a parable of summoning its wrath.
• Big "NO!": Belts out one in the English dub as Chaos unleashes the power of Chaos Emeralds on his tribe. In the Japanese edit he instead belts out a choking death scream.
• Character Death: Notable for being among the first major characters to die in the series, albeit offscreen.
• The Corruptor: Under his mother's rule, the Knuckles Tribe were fairly peaceful, but when she died and he took over, he turned the Knuckles Tribe into greedy warmongers.
• Dub Personality Change: In the Japanese original, when he orders his men to seize the Emeralds, his dialogue implies that he had previously listened to Tikal's plea not to invade the altar until he had enough and decided that he couldn't "go along with a child's nonsense forever". The dub render of this line subjects him to Character Exaggeration by having him declare that he doesn't "listen to a child", implying that he never heeds her at all.
• Eyes Always Shut: Always has his eyes shut in Sonic Adventure, though they're textured on his model, as seen above.
• Ironic Name: Named after the early South American civilization of the same name which was initially peaceful before being invaded by the Incan Empire and later the Spanish; Pachacamac is the warmonger in question as shown with his relationships with other Echidna tribes such as the Nocturnus Clan, his offscreen victims and Chaos.
• Mugging the Monster: It's unlikely he knew that the Chao had a very dangerous, very ruthless protecter when he attacked them.
• Predecessor Villain: Of Adventure. He's the indirect cause of everything that has happened, but long dead by the events of the game proper.
• Small Role, Big Impact: Pachacamac didn't have a lot of screentime or characterization, but his actions drove his species to nigh-extinction and nearly doomed the world centuries later.
• Too Dumb to Live: Thought it was a good idea to piss off an angry water god by trampling his precious Chao children. Needless to say it did not end well for him or his tribe.
• Villain with Good Publicity: All his subjects except his daughter Tikal respect and share his martial prowess and ambitions.
• Well-Intentioned Extremist: He only wanted the best for his people, both versions of him playing off this aspect in different ways. In canon a combination of distaste for how the tribe was run beforehand and seeing what the spoils of war could do for the tribe is what led him down the path of a warmonger. While in the non-canon Sonic Chronicles he tried to make Tikal peacefully understand he needed the Chaos Emeralds to fight the Nocturnus Clan, but was so filled with greed with the power of the Emeralds, it ultimately led to the extinction of his entire race.

Professor Gerald Robotnik (Unmarked Sonic Adventure 2 and Shadow the Hedgehog spoilers)

"All of you ungrateful humans, who took everything away from me, will feel my loss, and despair!"

Debut: Sonic Adventure 2

Voiced by: Chikao Ohtsuka (Japanese), Marc Biagi (English, 2001), Mike Pollock (English, 2005)

Shadow's creator and Eggman and Maria's late grandfather. 50 Years before the events of Sonic Adventure 2, his granddaughter was diagnosed with a terminal illness. Gerald desperately tried to find a cure, which prompted the start of Project: Shadow and his research into immortality. The Government, however, got suspicious of Gerald's motivations and ordered the project to be shut down, with Maria being among those who died in the raid. Gerald snapped and swore revenge on humanity, and his plan would come to fruition for those who sought to unleash Shadow.

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• Anti-Villain: He was so desperate to save his granddaughter that he made a deal with Black Doom to speed his research. And after the government got wind of his outside interference and became scared, they went in and killed all of his colleagues and Maria, driving him off the cliff. This is especially noticeable in Shadow the Hedgehog, as he is treated as the Big Good.
• Badass Bookworm: It's simple. He created Shadow, the whole plan 50 years before it happened, and the Prototype that Sonic and Shadow used lots of effort in defeating. Even when imprisoned, he successfully set up his grand revenge plan, and would have succeeded had it not been for Super Sonic and Super Shadow.
• Big Good: Amusingly. At first glance, Gerald seems like a rotten guy like his grandson would end up being, but the Final Story of Shadow the Hedgehog reveals he was planning to use the means given to him by the Black Arms against them. Keep in mind, however, he was only this as Maria was alive. After that, he decided to destroy the planet in revenge.
• Broken Pedestal: Dr. Ivo Robotnik idolized Gerald, but after the events of Sonic Adventure 2... not so much. Eggman, however, seems to gain some of his respect back after discovering Gerald's secret plan against the Black Arms.
  Eggman: That's it, it's brilliant!
• Colony Drop: This is his way to gain revenge on humanity, by destroying the Earth with the ARK.
• Contrasting Sequel Antagonist: With Pachacamac. Both are posthumous antagonists responsible for the events of their respective games. However, whereas Pachacamac was a ruthless warmonger who was willing to have his men trample his own daughter for power and unintentionally causes the world to nearly be destroyed, Gerald was a caring man who loved his granddaughter to the point where her death broke him into trying to destroy the world out of vengeance.
• Deal with the Devil: He needed a sample of Black Doom's DNA to complete Shadow, and in exchange, Shadow would help Black Doom take over the planet 50 years later. Gerald had other plans, fortunately.
• Despair Event Horizon: Once, Gerald was a highly respected scientist who wanted to help people through science. After his granddaughter Maria's death at GUN's hands and all blame for the ARK slaughter being pinned entirely on him, he quickly started becoming evil and ended up a wannabe Omnicidal Maniac, as his Final Speech shows. While his mind was still intact he knew he would become a monster who could and would enact a plan to destroy the Earth if his descent into madness was not stopped, and when that threshold would be crossed, no force on Earth at that time would be able to stop him. He was right.
• Dying Declaration of Hate: Gerald's speech to the firing squad set to execute him, which outlines his Colony Drop to all of humanity, is basically his Disproportionate Retribution. Apparently nobody at GUN realized that he was actually serious and that perhaps someone should follow up on and investigate what he claimed was going to happen.
• Family-Unfriendly Death: Downplayed. The footage of him shown on the ARK as he makes his presence known shows him about to be executed by a GUN firing squad, which is a horrific way to go out. Fortunately, the only hints given that he's about to be executed by firing squad is the dialogue, and it cuts off as the sentence is about to be carried out and the GUN soldiers take aim.
• First-Name Basis: Even among those who knew him, he's usually referred to as Prof. Gerald, not Prof. Robotnik.
• Humans Are Bastards: Developed this mentality after Maria died, and to this day is one of the more vile antagonists the franchise has seen.
• Knight of Cerebus: One of the few villains in the franchise with no comedic traits whatsoever due to his tragic fate.
• Mad Scientist: Gerald, unlike his grandson Ivo, was not this and used his inventions to help humanity. Even the Eclipse Cannon was to be used to stop Black Doom, as revealed in Shadow the Hedgehog. Then Maria died, and then he definitely became a Mad Scientist. His experiments and deal with Black Doom allowed him to create both Shadow the Hedgehog and his prototype, the Biolizard.
• The Man Behind the Man : In Sonic Adventure 2, he's the one who created Shadow and set him on the path to destroying mankind.
• Maker of Monsters: Just as his grandson specializes in building robots, Gerald specialized in creating organic lifeforms for war. He created the Biolizard, Shadow the Hedgehog, and a small army of Artificial Chaos, and everything Eggman himself knows about making living creatures he learned from reverse-engineering Gerald's technology.
• Mirror Character: To Chaos. Despite being two totally different species with contrasting backgrounds, their stories play out near-identically. Both were once benevolent figures seeking to help others and protect those close to them. Both ended up losing the people they cared about the most (the Chao in Chaos' case, and Maria in Gerald's), causing them to cross the Despair Event Horizon. Finally, both suffer Sanity Slippage and decide to take out their anger and despair on the rest of the world. Unfortunately, while Chaos managed to regain his sanity and give up on his revenge, Gerald dies as a bitter and misanthropic old man, whose hate would live on through Shadow.
• Misanthrope Supreme: Quickly became one after GUN killed Maria, beginning his work on Shadow as his ultimate and parting gift to Ivo.
• Misplaced Retribution: Wanting to destroy all humanity when only GUN was responsible for his granddaughter's death.
• No Good Deed Goes Unpunished: He only created Project Shadow to help cure his terminally ill granddaughter. All it gets him is his granddaughter and multiple people on ARK murdered by GUN and himself forced to work for the government on further experiments on Prison Island before he was finally executed.
• Omnicidal Maniac: But only after Maria's death, and the related plan happens far after his death.
• Plot Device: After Adventure 2, the writers found Professor Gerald to be very useful as a character to help write more stories, and as such, his diaries become a plot point in both Sonic Battle and Sonic Rivals. In Battle, he found the Gizoid, and he seemingly found an alternate dimension with a demon monster named Ifrit, and both are useful for his descendants Eggman and Eggman Nega.
• Posthumous Character: Has been long dead by the time Eggman finds Shadow. However, his plan to destroy the Earth by crashing the ARK into it keeps going on even fifty years after his death.
• Predecessor Villain: Everything in Sonic Adventure 2 that happens is because of this guy, even though he's been dead for 50 years. Can also count as one for the franchise as a whole, as it was Eggman's reverence towards his grandfather that got him interested in studying robotics in the first place.
• Rebuilt Pedestal: Eggman was horrified that his grandfather had been in league with Black Doom fifty years ago, but he ultimately regained the respect and admiration he had for him when he learnt the full truth.
• Reluctant Psycho: He voices in his diary how terrified he is of his inability to control his own thoughts and actions after losing his sanity due to Maria's death.
• Sanity Slippage: As noted by himself, Maria's death pretty much broke whatever sanity he had left.
• The Scapegoat: As revealed in Shadow the Hedgehog, G.U.N. pinned the massacre on the ARK on him and Shadow to cover their own hinds.
• Shot at Dawn: He was executed by a firing squad, though the footage cuts out before we see any bullets fire.
• Strong Family Resemblance: Especially in Shadow the Hedgehog, where he's fatter and basically looks just like Eggman, except with a neater mustache and a labcoat. Also applies to their descendant, Eggman Nega. Averted with Maria, though.
• Supervillain Lair: Ironically, Prison Island became this once he went insane, as he proceeded to turn ARK and Shadow into weapons to unleash onto humanity right under GUN's nose. GUN executed him precisely because they feared how dangerous he was, not realizing that he had already engineered his evil plan and it was only a matter of time before someone activated it for him.
• Tragic Villain: Originally a scientist who wanted to work for the benefit of humanity and cure his ailing granddaughter, but delved into a vengeful old man who cursed the world, especially after the siege of the Ark by G.U.N., who killed Maria and destroyed everything he worked so hard for.
• Ungrateful Bastard: His Final Speech includes him calling humanity as a whole this. Considering he was trying to help mankind with his intelligence and even Shadow and the Eclipse Cannon were intended to save them all from Black Doom, how he developed this mentality is rather easy to see.
• Villainous Legacy: He was behind the plan in Sonic Adventure 2 50 years ago before the event, and possibly Eggman becoming who he is today. Likewise, his notes about the Gizoid who would be known as Emerl starts the events of Sonic Battle.
• Woobie, Destroyer of Worlds: He hates humanity with all his heart, but only because they took his granddaughter from him.

The Biolizard (Unmarked Sonic Adventure 2 spoilers)

Debut: Sonic Adventure 2

The prototype of the Ultimate Life Form, AKA Shadow the Hedgehog. Also part of Gerald Robotnik's plan to destroy the Earth, where during its second battle it is instead known as the Finalhazard. Only appears in Sonic Adventure 2 and the 3DS version of Sonic Generations, later returning for the Sonic x Shadow Generations remaster.

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• Achilles' Heel: Both its low stamina (due to not being as advanced as Shadow) which cause it to tire out easily, and the life support system on his back, which when destroyed eventually causes other weak points to appear on its body via the harsh conditions of space when it attempts its final act.
• Adaptational Badass: Its new fight in Sonic x Shadow Generations is shaping up to be this; in both the original fight and the 3DS version, the Biolizard is stuck in the middle of the arena and is a sitting duck for attacks. In the trailer for Shadow, however, it is seen floating around the arena and sticking to the walls, alongside a cavalcade of projectiles and obstacles for Shadow to avoid.
• Animalistic Abomination: A deformed lizard-newt thing with enough control over Chaos energy to drag the Space Colony ARK to Earth. In addition, it's unclear how intelligent it is, though it's clearly at least smart enough to follow its creator's orders.
• Armless Biped: It has frontal forelegs, but as for the lower sections of its body, there's basically no hind legs to be seen at all.
• Beta Test Baddie: The Biolizard is the prototype result of Project Shadow. Shadow the Hedgehog is the final result.
• Breath Weapon: Can fire dark energy spheres from his mouth.
• The Bus Came Back: After a long absence, a temporally-displaced Biolizard makes a reappearance as the second boss in Sonic Generations 3DS, this time fought by Sonic, and after a 13 year gap once again faces off against Shadow in Sonic x Shadow Generations. This, amusingly, makes the Biolizard the only non-Rival boss to be fought in both versions of the game.
• Cain and Abel: Both the Biolizard and Shadow are products of the same project, and both fight for the fate of the world.
• Colony Drop: Tries this by fusing with the ARK in the final phase of its boss fight, so it can fulfill Gerald's plan.
• Contrasting Sequel Antagonist: As a giant reptilian monster trying to carry out mass homicide as an act of revenge, it's clearly taking notes from Perfect Chaos of Sonic Adventure. That said, the Biolizard is decidedly a monster of the science fiction genre where Chaos was a creature of fantasy, and while Chaos got a whole game exploring its motives and carried out its revenge plan on its own volition, the Biolizard only arrived at the last minute and its motives were never explored, instead following Gerald's revenge plan.
• Cyborg: Had to be outfitted with cybernetic implants to be properly stabilized, especially with all of those tubes around it that connect it to the aforementioned life support system.
• Damage-Sponge Boss: He takes the most hits out of any of the Adventure series bosses. Even its skin can sometimes cause Shadow to take damage if he hits it head-on at certain angles during the initial fight.
• Dark Lord on Life Support: The Biolizard is supported by an immense life-support system, the central module of which is its Achilles' Heel during its Boss Battle. According to Rouge's Project Shadow report, the life support system is called the "eternal engine".
• Diabolus ex Machina:
  • While the Project Shadow report establishes that the Biolizard certainly existed, there wasn't anything to foreshadow that it was waiting in the wings to protect the Cannon Core.
  • Downplayed after Shadow defeats the Biolizard, allowing Sonic and Knuckles to make a break for the fake Master Emerald shrine and shut off the Chaos Emeralds, which were fueling the Colony Drop—naturally, the Biolizard takes things into its own hands to finish the job. Rouge's Project Shadow report technically reveals that the Biolizard has a special organ to use chaos control, which explains why it can use the technique, not that anyone noted it in story.
• Dragon-in-Chief: Keeps Gerald Robotnik's plan going, even after Gerald is dead and Shadow has made a Heel–Face Turn.
• Dragon Their Feet: The Biolizard shows up at the last possible minute to ensure Dr. Gerald's revenge goes according to plan.
• Dual Boss: Inverted in his second fight, as it's Shadow and Sonic vs. him.
• Evil Cripple: It has a life-support system, which acts as its weak point in the first fight against it. It also has two stumps around where its hind legs are, as well as an extra one for where its left hand used to be when it fuses with the ARK.
• Evil Is Bigger: The Biolizard is much bigger than his successor Shadow.
• Flawed Prototype: Despite being an "ultimate lifeform," it's missing a few limbs and is dependent on life-support to survive. Not to mention it's much larger than Shadow, implying the latter's design is more space-efficient.
• Foreshadowing: The Biolizard's existence and the data about its abilities are confined entirely to the Project Shadow report that Rouge waves in Shadow's face during the Dark Story, but the document does detail the fact that it has an "eternal engine" life support system and a special organ that allows it to use Chaos Control. The document even describes the creature's exponential growth and that it has a strong neck and tail.
• Generic Doomsday Villain: It's less of a character and more of an extension of Gerald Robotnik's vengeance.
• Giant Space Flea from Nowhere: There's one scene that it appears in (indirectly) before it fully enters the plot, and it doesn't explain anything about it other than it might be the "original" Ultimate Lifeform. It has very little characterization and seems to only exist for the sake of a boss fight.
• Gravity Master: When low on health, it will mess with the gravity in the room, forcing Shadow to float towards his life support system while avoiding the pink orbs.
• Handicapped Badass: Overall, while it had to be maintained through a life support system, during its time it did cause quite a few problems aboard the ARK before being sealed away in the core. During the fight against it with Shadow, it also effectively has him pincer-ed between its head and tail and overall is quite durable and due to being a lizard, can regenerate at a fast rate.
  • Also applies to its Finalhazard form, which is attached to the ARK, and therefore loses what little mobility it had. It compensates for this with deadly point-defense lasers.
• It Can Think: Despite only grunting, screaming, and trying to eat Shadow during its Boss Battle, this thing has the intellect to try and prevent Dr. Gerald Robotnik's plan from being interfered with, to implement a back-up plan when the first attempt fails, and to use Chaos Control.
• It's Personal with the Dragon: Implied. The Biolizard's first Boss Battle with Shadow is a fight between Dr. Gerald's Co-Dragons, with Shadow being the final product and the Biolizard the Flawed Prototype.
• One-Winged Angel: It fuses with the Eclipse Cannon to force the Colony Drop after the heroes succeed at stopping Gerald's initial attempt.
• Man Bites Man: Will try to lash out at Shadow by clamping its jaws if he gets too close to its face despite not having any teeth in its mouth.
• Outside-Context Problem: No one had any clue about its existence until it attacked Shadow and then attached itself to the ARK.
• Psycho Prototype: To Shadow, the Ultimate Life Form.
• Punny Name: It's a living weapon (bio-hazard) and also a reptile (lizard), hence the name BioLizard.
• Reptiles Are Abhorrent: To the point where during its creation, it became very primal and difficult to control, as well as reacting violently around the Chaos Emeralds; it had to be sealed away deep within the ARK's core to prevent ongoing issues. It was also enough to have some stray researchers who feared its existence and the damage it caused to leak the classified information about Project Shadow to GUN, which led to the events that would prompt them to soon try to close down the experiments.
• Shadow Archetype: To Shadow. Both were created to be the ultimate life form, and both attempt to carry out Gerald Robotnik's vengeance. The differences is Shadow, thanks to his love for Maria is able to break away from the doctor's vengeance while Biolizard, who had no personal bonds, stays as a loyal weapon to the bitter end.
• Silent Antagonist: Like Chaos, the only noises it makes are roars, it has no dialogue whatsoever.
• Suicide Attack: The final boss battle against it is in order to prevent it from pulling one off against the entire planet.
• Tail Slap: If the player decides to traverse to the opposite side of the boss arena, its long tail will greet and thwack Shadow unexpectedly.
• Tele-Frag: Weaponized by itself, on itself. In an attempt to keep the Space Colony on course for its collision with the Earth, it uses Chaos Control to warp itself overtop the Eclipse Cannon in order to secure the Ark to itself and physically tear the entire space station out of its orbit.
• Time-Limit Boss: In the Finalhazard boss fight, you have your rings to watch as he slowly descends toward Earth. And even then, you only have five minutes before it enters the planet's atmosphere and it's an automatic death.
• True Final Boss: Of Sonic Adventure 2, first fought with Shadow and then Super Sonic and Super Shadow.
• Ultimate Lifeform: Intended to be this, but its aggressive behavior and its reliance on the life-support system to survive caused it to be deemed a failure.
• Vader Breath: He does this mixed with a panther growl.
• The Voiceless: It does roar, though.
• We Hardly Knew Ye: Despite the game establishing It Can Think and that it has enough loyalty to Gerald and Gerald's plan that it throws itself into a Suicide Attack to ensure the Colony Drop succeeds, there's absolutely no investigation of its own motives.

King Boom Boo

Debut: Sonic Adventure 2

The supposed leader of the Boos that haunt the Big Boo's Haunt stages in Sonic Adventure 2.

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• Achilles' Heel: In his Sonic Adventure 2 Boss Battle, King Boom Boo has things pretty sewn up—he keeps the switch that controls the chamber skylight under his own guard and will turn on anyone sneaking up behind him. If Knuckles can evades the king's Fireballs, however, the king will use his Always Accurate Attack, which forces him to hold still and lets Knuckles get to the Mook holding the switch.
• Always Accurate Attack: King Boom Boo normally attacks with Fireballs in Sonic Adventure 2, but if these prove ineffective he'll unleash big wave of blue flame that will swallow the whole field.
• Ambiguously Related: In Sonic Adventure 2, King Boom Boo and the Egg Golem share a locale in Eggman's pyramid and employ Theme and Variations on the same Battle Theme Music, "Masters of the Desert", but no direct connection between them has been illustrated. Considering how the pyramid seems to be on Angel Island judging by the stage select screen map, it seems both bosses are references to Sandopolis Zone.
• Bedsheet Ghost: Less so than the normal Boos, but still somewhat.
• Breath Weapon: He does this after finishing throwing fireballs.
• The Bus Came Back: There was a fifteen year gap between his debut in Sonic Adventure 2 and his return in the non-canon Sonic Runners.
• Creepy High-Pitched Voice: His ghostly voice for the most part sounds echoey and low especially when he growls. Except for a couple of his giddy and deranged laughs where his voice shifts from low to sounding squeakier. He does this freakish-sounding laugh if he attacks Knuckles with his fireballs.
• Everything's Better with Rainbows: His entire tongue is strangely multicolored.
• Evil Laugh: If you get impatient and tries to sneak up on him too early during his Boss Battle in Sonic Adventure 2, King Boom Boo will whirl around and chase you, growling and cackling as he does.
• Fireballs: Another of his abilities is throwing blue fireballs at the character.
• Fish Eyes: Both of his eyes are small, round, and beady and they're basically darting in separate directions, which makes him extremely dopey to look at.
• Flunky Boss: During his Boss Battle in Sonic Adventure 2, King Boom Boo is attended by a minion boo who guards the switch that controls the skylight. Knuckles must sneak up and take out the minion before the king notices to brighten up the place and take the attack.
• Ghastly Ghost: King Boom Boo is a giant ghost who serves as the leader of the Boos and the boss of Death Chamber.
• Giant Space Flea from Nowhere: He appears, completely without warning, after Knuckles completes the Death Chamber stage, to provide him with a perfunctory Boss Battle.
• I'm a Humanitarian: One of his attack patterns is to chase Knuckles around the arena, teeth snapping at the character and trying to get a bite.
• Jump Scare: In the beginning stages of the fight, you can run fast enough to approach his back before intended. However, instead of actually reaching it, he turns around and rushes at you, which can be a surprise.
• King Mook: Of the Boos. With its fangs and bulging eyes, it bears a slightly closer resemblance to the open-eyed boos than the ones with button eyes and stitched up mouths.
• Logical Weakness: In the dark, he's large and is immune to any attack Knuckles can do to him. By flipping the hourglass over to open the hatch of the pyramid, he's downright worthless in direct sunlight and becomes vulnerable where Knuckles is able to punch him a number of times before it gets dark again.
• Oh, Crap!: Every time the ceiling opens up with sunlight, he lets out a frightened growl and phases through the ground until it closes. Whenever he gets takes damage after Knuckles digs him out, he begins to panic and rapidly hustle to avoid him as by using his two arms to get away.
• Outside-Context Problem: In Sonic Adventure 2, King Boom Boo has nothing to do with Eggman, G.U.N., or Shadow; he just so happens to occupy the desert pyramid where Eggman's built his base.
• Outside-Genre Foe: Being a ghost, King Boom Boo is more suited to the Horror genre than the Science Fiction Thriller genre of Sonic Adventure 2. To their credit, he and the Boos only appear in the pyramid and the spooky Pumpkin Hill and Aquatic Mine levels, all which take place on the mystical Angel Island.
• Pokémon Speak: In the Sonic Runners Halloween Event, he speaks by saying "BOO".
• Tactical Suicide Boss: In his Sonic Adventure 2 Boss Battle, King Boom Boo guards the skylight-switch with care, but if Knuckles evades enough of his Fireballs, King Boom Boo will unleash his Always Accurate Attack, which forces him to sit still long enough for Knuckles to get the drop on him.
• Technicolor Fire: He throws around bright blue fireballs trying to nail Knuckles from a distance, and can unleash a wave of the same blue flame.
• Too Clever by Half: In Sonic Adventure 2, King Boom Boo is savvy enough to keep the key to his weakness under double-guard—he assigns the skylight-switch of his chamber to the care of a Mook, who is in turn guarded by King Boom Boo himself; the king will turn on a dime if he senses someone approaching. Too bad for the king that he can be provoked into using an attack that leaves him vulnerable if Knuckles stays just out of range for long enough.
• The Unintelligible: In Sonic Adventure 2, he communicates with bellows, cackles, and screams.

Black Doom

^{Click here to see Devil Doom}

"I gave you life, and this is how you repay me? The irony of it is, I gave you life. And now, I'll take it back."

Debut: Shadow the Hedgehog

Voiced by: Ryūzaburō Ōtomo (Japanese), Sean Schemmel (English)

The leader of the Black Arms, an alien race from the Black Comet, who helped create Shadow and tries to enlist his help in conquering the Earth.

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• Abusive Alien Parents: Professor Gerald made contact with the alien race, the Black Arms, with Black Doom as its leader. He helped Gerald in creating Shadow, donating his blood in order to become the Ultimate Lifeform. Black Doom then returned 50 years later, taking advantage of Shadow's amnesiac state, and uses him for his own benefit, even attempting to control him directly through their shared blood. Not once does he treat Shadow like his child and nothing more than a soldier, having no problem with trying to kill him once Shadow commits to rebelling against him.
• The Ageless: Implied. It was his blood that Gerald needed in order to perfect Shadow as the Ultimate Life Form after the failure of the Biolizard, though it's unclear if it was his apparent immortality or ability to manipulate Chaos energy that was the true prize since the Biolizard has both in some capacity if far less refined. Doom also makes mention that he saw to the placement of several Black Arms bases on the planet in ages past, such as the floating ancient ruins in "Sky Troops" that he boasts he put down over 2,000 years prior to the game's events, and during his Villainous Breakdown in the Golden Ending he mentions he's the "immortal life form" as he's defeated.
• Aliens Are Bastards: The Black Arms are a race that feed on the many planets they invade, and Black Doom wants to destroy Earth's civilization and use the humans as food for his people. Black Doom commits atrocities, which involve: the invasion of the planet, killing and consuming many of its citizens, destruction of the Presidential White House, all of this, while hypocritically describing Humans Are the Real Monsters to Shadow.
• Aliens Speaking English: The only member of the Black Arms who does it, and is never suggested any of the Black Arms have any form of sentience.
• Amusing Alien: While he's mostly played straight, he has his moments of unfamiliarity with Earth. For example, during the thunderstorm segment of Sky Troops he is bewildered, assuming that the lightning strikes must be attacks from the Egg Fleet.
• Arch-Enemy: To Shadow, moreso than any other villain in the series, as he is personally involved in the way Shadow came to be.
• Archnemesis Dad: He donated his blood to help create Shadow, but is perfectly willing to destroy him when he defies him.
• Back from the Dead: Reappears in Sonic X Shadow Generations despite his death in Shadow the Hedgehog. Of course, this isn't new considering both Perfect Chaos and Biolizard are also revived in the main game(s), so it is likely that he is either temporarily displaced in time or that White Space revived or copied his form through Shadow's memories.
• Big Bad: Of Shadow the Hedgehog. While the game tries to have some morality with the player's choices, Black Dooms remains as completely vile and the True Final Boss of the game. Also of Shadow's story campaign in Sonic X Shadow Generations.
• Bling of War: Wears several necklaces and chains, showing him as a warrior conqueror.
• Breath Weapon: Breathes fire as Devil Doom.
• Bring It: The most likely reason he leaves the Chaos Emeralds to Shadow when he transforms into Devil Doom is to enjoy a climactic battle with his son.
• The Bus Came Back: After last appearing in his debut game and being defeated/presumably killed by Shadow, Black Doom returns 19 years later as the main antagonist of Shadow's story in Sonic x Shadow Generations.
• Character Death: Was singlehandedly killed by Super Shadow, along with the rest of his race when Shadow teleported the Black Comet back into space, right into the path of the Space Colony ARK's Eclipse Cannon.
• Colony Drop: Tosses meteors at you.
• Continuity Cameo: He is featured as a card in Sonic Rivals.
• Cyclops: As Devil Doom.
• Dark Messiah: Black Doom appears to be heavily based on corrupt religious figures. He claims to care deeply for his congregation, but throughout the game he's shown needlessly placing them in harm's way for the "greater good", he secretly plots to quite literally leech off the people he promises to save, he helped sire Shadow, literally making him his father, and his design resembles a Lovecraftian bishop. He even has the nerve to use the word "salvation" in the Last Story.
• Disney Villain Death: After being defeated in the Final Battle in the sky, he is sent falling several thousand feet to the ground below. If that didn't kill him, then Shadow blowing up the Black Comet seconds later probably did.
• Doomy Dooms of Doom: His name is Black Doom, and his final form is named Devil Doom.
• Doppelgänger Attack: During his boss fights, he'll leave behind afterimages of himself that will perform one of his attacks.
• Energy Weapon: As Devil Doom, he has meteors surrounding him that fire lasers.
• Even Evil Has Loved Ones: Subverted. Despite his claims, he's not above using his own or needlessly sacrificing his people when it benefits him. It is especially zig-zagged with Shadow, as he communicates, and gets along well with him, but he had no problem with attempting to kill him for switching sides.
• Evil Sounds Deep: Since he looks like a devil, he's got a deep voice to match one, to the point of sounding almost Dr. Claw like.
• Eviler than Thou: He's this to Dr. Eggman. Compared to the "good" doctor, Black Doom is a ruthless, genocidal warlord who very nearly succeeds consuming Eggman (and the rest of humanity). This is highlighted in Sky Troops, where when given the option to choose between following Eggman or Black Doom, siding with Eggman is considered the heroic choice.
• Evilutionary Biologist: Believes that humans' actions will only lead to their own extinction and that they serve a better purpose as food for the Black Arms.
• Expy: He bears a resemblance to Wizeman with his similar attire, horns on his heads, detachable eyes, and being responsible for the protagonist's existence.
• Extra Eyes: He has three eyes, one of which can detach into a separate organism and guide Shadow on missions.
• Flat Character: Black Doom is evil and he wants to wipe out the human race. That's about all there is to him from the start of the game to the ending, which is even more glaring considering both Shadow and Gerald have similar goals, but are fleshed-out Tragic Villains, as opposed to Black Doom, who is just inexplicably a genocidal Galactic Conquerer.
• Galactic Conqueror: Claims to have conquered several worlds.
• The Ghost: He is mentioned in Sonic Chronicles: The Dark Brotherhood as well as Sonic Frontiers but he doesn't appear in-person.
• Glorified Sperm Donor: He may have had a hand in creating Shadow, but he ain't no dad. He never even checks on him until the Black Comet comes back around, he tries to manipulate him into doing his bidding, and tries to murder him after he inevitably turns him down.
• A God Am I: While never officially declaring himself a god, Black Doom considers himself the supreme being who rules the universe, the immortal life form and the ultimate power.
• Go for the Eye: As Devil Doom, his weak spot is Doom's Eye.
• Greater-Scope Villain: Retroactively for Adventure 2, as he supplied Gerald with the DNA to create Shadow. The Eclipse Cannon was originally designed to destroy his comet and his involvement is what made G.U.N. shut the project down.
• Hoist by His Own Petard: Although Shadow's immunity to Black Doom's use of We Can Rule Together's derivations are unknown, it's heavily implied that the reason why Shadow was immune to Black Doom's gas is because he has the Black Arms' blood in him, more specifically the blood Black Doom gave to create him.
• Humans Are the Real Monsters: Black Doom believes humans are a worthless race that will self-destruct in due time, and considers using them as food for the Black Arms an act of mercy. During multiple points of the story, if choosing his side, Black Doom will tempt Shadow with illusions and words, showing how terrible humankind is.
  Black Doom: (during the Devil Doom boss fight) ''Why can't you understand that these humans are the parasites of this world? Absolute power is the only way to bring order to the planet... The humans must be eliminated! Shadow, open your eyes! Realize that sympathizing with these humans has all been a mistake!
• Hypocrite: During the cutscene before the Heavy Dog boss, Black Doom disgustedly points out to Shadow that humans are willing to sacrifice their own for greed, even though he has no qualms about sacrificing his own army for personal gain and plans to use humanity as a food source.
  Black Doom: Humans, willing to sacrifice their own when overcome by greed. They... are a foolish race.
• Jerkass: Very arrogant and cruel, going so far as sacrificing his own people in order to achieve his goals.
• Kick the Dog: When he orders Shadow to get the Chaos Emeralds for him, he comes back with the exact thing that he wanted, and yet he still tells Shadow that he disobeyed him.
• Knight of Cerebus: One of the few Sonic villains to be played completely seriously. His invasion of Earth is essentially full-scale colonialism and he comes within a hairsbreadth of turning the human race into lunch. He also serves as a personal one to Shadow.
  • Applies to Sonic x Shadow Generations too. The main game is still fairly lighthearted and the Time Eater isn't a real threat until the very end of the game, with the stages displaced but mostly intact. When Doom's Eye shows up in the trailer, however, the stage Shadow is in immediately goes to hell, changing from the starry Final Chase to a distorted and red version of Westopolis.
• Knight Templar: Passes himself off as this, claiming that by feeding the humans to his larvae, he's offering salvation.
• Like Father, Like Son: Black Doom seeks to conquer the world, Shadow ends up conquering the world in many of the bad endings.
• Luke, I Am Your Father: His blood was used to create Shadow, and he sees Shadow as one of his own.
  Black Doom: I gave you life... and this is how you repay me?
• Manipulative Bastard: He manipulates Shadow all through the game for him to help his cause, which includes make him remember Maria's death in detail, and using skewed and altered memories to make Shadow think that Humans Are the Real Monsters (similarly to Prof. Gerald). Depending on the ending of the game, he succeeds and Shadow joins his cause, or Shadow ends up betraying him. He doesn't succeed in the canon ending.
  Black Doom: That's right. This will remind you of what the humans did to you. Never forget that horrifying image.
• Mind over Matter: Devil Doom will telekinetically manipulate debris from the city below to form a shield around him.
• Multiple Head Case: Devil Doom has two heads on either side of his body, and Doom's Eye occasionally switches between them.
• Mysterious Past: The Black Arms themselves don't get a lot of backstory, but events in the game imply they have wanted to take control of the Earth for thousands of years, even creating bases in the form of ancient temples. It wasn't until Gerald came along that their plan could actually succeed.
• Names to Run Away from Really Fast: Black Doom. He might as well be named "Villain Von Bad Guy".
• No Celebrities Were Harmed: You would be forgiven for believing that Doom was voiced by Frank Welker doing his Dr. Claw voice.
• No Mouth: In his normal form. Subverted with Devil Doom.
• Not-So-Well-Intentioned Extremist: Black Doom justifies his Alien Invasion by claiming to Shadow and co. that humanity's actions will only lead to their own extinction, and the Black Arms are here to offer salvation. However, their true purpose is to turn humans into their food source, and Black Doom's words fall flat considering the numerous atrocities he's committed, which include mass murder and blowing up the White House.
• Obviously Evil: Has a devilish-themed appearance, is black-and-red, speaks with a evil growl that sounds like the bowels of hell, wishes to exterminate the entire human race, and take over the world. His name has the word "Doom" in it, for crying out loud!
• One-Winged Angel: His "Devil Doom" form, a freakish, two-headed, gargoyle-like monstrosity that looks like this.
• Pet the Dog: Sharing humans as food with the other Black Arms is the closest thing he does to nice in the entire game. Of course, the fact that he has no problems sacrificing them to achieve his goals makes this ring pretty hollow.
• Playing with Fire: He can toss flaming discs at you during his fights.
• Power Floats: Justified, as he has no visible legs.
• Rank Scales with Asskicking: The leader of the Black Arms and the most powerful of them all.
• Rasputinian Death: Is blasted several dozen times in the eye with the Chaos Spear, plummets out of the sky and several thousand feet to the surface of the Black Comet, and if that didn't kill him, then the Black Comet being obliterated by the Eclipse Cannon definitely finished the job. Despite this, he has somehow returned in Sonic X Shadow Generations.
• Really 700 Years Old: Has been around for 2000 years, and has visited the Earth many times.
• Red and Black and Evil All Over: Just like Shadow. This is not a coincidence, considering he is ostensibly his father, having donated his own blood to help Gerald create him.
• Red Eyes, Take Warning: He has a set of these and is the villain.
• Reports of My Death Were Greatly Exaggerated: Sonic X Shadow Generations confirms that Black Doom is alive and well, having survived the events of his debut game somehow. During the events of Sonic Generations, he returns with unknown purpose to torment Shadow again.
• Satanic Archetype: Is black and red, has horns, tries to tempt Shadow to evil with varying degrees of success and is the Greater-Scope Villain of several disasters. Oh, and his Super Form is a multiheaded dragon monster called Devil Doom who literally falls from the heavens upon defeat.
• Sorcerous Overlord: The overlord of the aliens with some very strange powers to boot. Whether it actually is magic or a case of him being a Sufficiently Advanced Alien is hard to determine, however.
• Starfish Aliens: He's one of the most inhuman looking aliens that the series had seen when he debuted, with his Doom's Eye form being shaped like a starfish with an eye in the center.
• Take Over the World: Claims to have conquered several worlds and wants to do the same to Earth.
• The Sociopath: Putting on a thin facade of wanting to "save humans from themselves" does little to hide his true nature as an empathy-lacking, cruel creature who has his army kill millions, sees nothing wrong with turning humans into cattle for his troops to feed on and attempts to use Shadow as a tool for his plans, manipulating him throughout the story.
• Third Eye: Doom's Eye, a tentacled monster that can move independently from Black Doom and can project holograms of himself. Black Doom can also speak through it. Black Doom himself also sports three eyes.
• This Cannot Be!: Is left in complete disbelief when he's finally defeated in the Golden Ending, screaming out his Villainous Breakdown as he thrashes and falls out of the sky.
  Devil Doom: Im...impossible! I am the supreme being that rules this universe! I am the immortal life form! I am the ultimate power! Gaaah!
• Time-Limit Boss: The final battle with him zig-zags this trope. As the fight between him and Shadow rages in the sky, Sonic and co. are slowly succumbing to the paralyzing nerve gas of the Black Comet. The longer the fight goes on, the more bleak it becomes for them. However, you can take as long as you like and it won't affect the ending at all. The actual time limit is your ring count to maintain Shadow's super form.
• To Serve Man: Black Doom's ultimate goal. And he would have pulled it off if Shadow didn't turn out to be immune to his nerve gas and We Can Rule Together antics.
• Vile Villain, Saccharine Show: Granted, he debuted in a Darker and Edgier game but he's one of the most evil villains in the Sonic series up there with Mephiles, Erazor Djinn and Infinite.
• Villain Has a Point: Believes that humans' actions will only lead to their own extinction, and seeing the actions of certain individuals like Gerald and his descendants, he is right to a certain degree.
• Villain of the Week: His sole appearance is in Shadow the Hedgehog, and he's clearly the major threat of the game, with even Eggman being at his mercy near the end. It wasn't until 2024 that he made a return to the series in Sonic X Shadow Generations.
• Voice of the Legion: He has this to go with Evil Sounds Deep, making him sound appropriately demonic.
• We Can Rule Together: He pulls this a couple of times, though he's (arguably) really bad at it, and seems to honestly be surprised when Shadow says no.
• Wings Do Nothing: Averted. As Devil Doom, he'll use his wings to defend against Shadow. Shadow can disable the wings to prevent this, but he'll still remain airborne.

Solaris

Tropes Relating to All Three

Mephiles and Iblis at the moment of their creation.

Solaris, known as the Flames of Disaster, is a sun deity with the power to control time, worshipped by the nation of Soleanna. 10 years before the events of Sonic the Hedgehog (2006), Solaris was experimented by the Duke of Soleanna, but an accident separated the entity into its two components: Mephiles the Dark and Iblis. Mephiles was sealed in the Scepter of Darkness by Shadow, while Iblis was sealed by the Duke in the young Princess Elise.

In the present, Eggman attempts to kidnap Princess Elise to unlock the secret of the Flames of Disaster, and Shadow by accident unleashes the mysterious Mephiles who has a grudge with him, and in the future, Silver constantly fights the Iblis and looks for a way to stop him.

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• Ax-Crazy: To different extents. Iblis is literally a being of blind rage and destructive power. Mephiles is more reserved but his obsessive hatred towards Shadow, his desire to destroy the word, and his hugely gleeful sadism at killing Sonic prove just how unhinged he is.
• Beast of the Apocalypse: The moment it's revived, it begins to destroy everything around it. It takes not only the combined efforts of Super Sonic, Shadow, and Silver to subdue its wrath, but it takes full-blown Cosmic Retcon to put it down for good.
• Big Bad Duumvirate: One of the three primary threats of Sonic the Hedgehog (2006). It's more on Mephiles' side, though, since Iblis has no intelligence to speak of.
• Bishōnen Line:
  • Iblis starts off as a giant floating ball of flame, then becomes a giant almost lava-like version of Perfect Chaos with multiple arms and rock armor while his lower body is still a blob of magma, then turns into a lava serpent with the same head, and his final form becomes even larger but also far more humanoid with two arms and legs and a less-armored head.
  • Mephiles starts off as a black sludge, then turns into an Evil Knockoff of Shadow with slitted eyes, No Mouth and all the red replaced with gray-green deep in the Uncanny Valley, and finally transforms into a crystallized version of the same without a nose, feet or gloves, with his legs tapering off into jagged stumps emitting purple mist and his hands now claws.
• Complete Immortality: Both Iblis and Mephiles have shown the ability to withstand considerable damage and regenerate. This, alongside the fact they don't seem to age, implies that they are immortal.
• Contrasting Sequel Antagonist: To Chaos. Both are ancient, godlike elemental entities (one of Fire, one of Water) that Eggman seeks to control and unleash (without realising that he is himself being played), and that are capable of destroying the world (or more). The difference is that Chaos, isn't actually a god and is a Woobie, Destroyer of Worlds, while Solaris is a actual deity and seems to be genuinely sadistic and evil.
• Divided Deity: Thanks to the events of the Solaris project, the god of light and time ends up being split into two halves — Mephiles, the mind of the god who is cunning, manipulative, and is made of darkness, and Iblis, a demon who becomes the "Flames of Disaster". Mephiles rejoins with Iblis near the end of the game after Iblis is freed from Elise's body.
• Eldritch Abomination: Continuing the trend of Lovecraftian enemies within the series. It’s initial form is a sentient flame for starters.
• Fusion Dance: The two of them can combine to regain their original form, Solaris.
• Literal Split Personality: Both Mephiles and Iblis, Mephiles being the conscious mind, and Iblis being the raw power of Solaris.
• Red Oni, Blue Oni: Iblis simply destroys everything in its wake with no rhyme or reason and its primary color is red. Mephiles, while possessing formidable abilities himself, is the more manipulative and cooler-headed one of the two.
• Ret-Gone: Thanks to Elise blowing out the flame that is Solaris, they are erased from existence, although Crisis City still exists with Iblis's minions running around according to Sonic Generations, so it's possible Iblis still exists. Ian Flynn, the head writer of the IDW Comics, has headcanoned that Mephiles became the Time Eater in the current timeline.invoked
• Satanic Archetype: Each aspect of Solaris is modeled on a different Satanic archetype.
  • Mephiles the Dark is Satan-as-tempter—his name is an abbreviation of Mephistopheles, and he's heavily associated with Casting a Shadow. Mephiles plays the manipulator who deceives the heroes into evil (e.g., wanting Silver to kill The Hero Sonic by exploiting his eagerness to save the future, tempting Shadow to turn against humanity).
  • Iblis is Satan-as-king-of-Hell. His name is based on the king of djinn and ifrits in Islam, and he turns the future into a Fire and Brimstone Hell on Earth.
  • Solaris is Satan-as-Lucifer, the Fallen Angel. In his complete form he's a celestial being who emits light, and has 6 stones on his back (shaped like a star), 6 claws, and 6 horn segments on his head, as well as a second phase that appears like a luminous angel-like being.
• Villain of the Week: Yet another one-shot villain who upstages Eggman as the greater threat of a Sonic game.

Mephiles the Dark

"Why fight at all? Why risk your life for those who will persecute you later?"

Debut: Sonic the Hedgehog (2006)

Voiced by: Takayuki Sakazume (Japanese), Dan Green (English)

An enigmatic entity trapped inside the Scepter of Darkness, who took on the form of Shadow the Hedgehog after being freed. Mephiles has the power to travel through time, and thanks to it he manipulates Silver to kill Sonic, tricking him into thinking he is the Iblis Trigger who doomed the world of the future. Mephiles is the Arc Villain of Shadow's episode.

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• And I Must Scream: After being split from Iblis, Shadow sealed him away in the Scepter of Darkness for ten years. Shadow tries to pull this on him again in the end of his story, but he averts it by having absorbed Shadow's power through his shade.
• Arch-Enemy: Despite the fact that he only interacted in one game, he was a pretty personal foe to Shadow, more so than any other character in the game.
• The Bad Guy Wins: He actually succeeds in his plan to destroy the planet, and also heavily damaged the time-space continuum, and it is even implied that the time-space continuum was also rapidly dying throughout the final story. The Final Story is essentially the heroes trying to set things right.
• Big Bad: Of Sonic '06 as a whole, being the mastermind behind most of the game's events and the personification of Solaris' mind and will.
• Big "NO!": In the brief cinematic in which Solaris's core is destroyed, a faint "NOOOOOOOOOO!!!" in Mephiles's voice can be heard in the background audio.
• Blob Monster: His initial form after being split off from Iblis resembled a black sludge, though when he moves around more quickly it resembles a dark cloud of shadows. Whenever his crystallized form takes enough damage he melts back into this sludge form.
• Boring, but Practical: Compared to Eggman or anyone else who tries to make a big and dramatic show of defeating Sonic, Mephiles's method of killing Sonic is surprisingly simple: Grab his attention and blind him with a Chaos Emerald before impaling him with a energy spear before Sonic has the chance to do anything else.
• Breakout Character: 06's infamy aside, Mephiles is still fairly respected as a character in the franchise, and while he remains Retgone to this day, has made small appearances in side projects over the years. He even has an official plush toy, something a lot of more popular characters still don't have.
• The Bus Came Back: After making small cameo appearances in two games after 2006, Mephiles reappears as an unlockable playable character in the non-canon Sonic Runners and has made smaller appearances in comics and spin-off games since then.
• Casting a Shadow: He can meld into a Living Shadow, bring shadows to life and merge them together to form larger shadow monsters, hide in the shadows of others, absorb shadows to grow stronger, and fire dark energy blasts.
• The Chessmaster: His main plan had Sonic and Elise getting close to each other so so she'd be too hurt to not cry when he killed Sonic. He spends his time toying with the minds of the scattered heroes while he waits, seemingly for the fun of it.
• Colour-Coded Characters: The main difference between him and Shadow; initially, Mephiles's stripes are a gray-blue instead of Shadow's red.
• Complexity Addiction: His plans could be... a bit simpler. Because of his ability to travel through time on a whim, he could've easily returned to the past to stop the Solaris Project at literally any time.
• Create Your Own Hero: Played with; from his perspective, he attacks Shadow and sends him to the ruined future after Shadow sealed him in the Scepter of Darkness. From Shadow's perspective, however, Mephiles attacked him first, giving him a reason to want to engage him and seal him.
• Creepy Monotone: When he introduces himself in the Japanese version, he speaks in a tone that's unsettlingly low but still menacing enough to seem as if he's somehow smiling.^note The English version of this scene goes for more of a Cold Ham route.
  "Boku wa Mefiresssu. Yami no Mefiresssu."
• Crystalline Creature: While he initially takes on an Evil Knockoff look of Shadow, shortly before their first proper fight Mephiles transforms himself into a crystalized version of said form.
• Dark Is Evil: Just look at his name; Mephiles the Dark. Given he's the mind of Solaris, the darkness is a good indication of his state of mind.
• Design Preservation Villain: He looks almost exactly like Shadow who had performed a Heel–Face Turn at that point, and shares his monotone way of speaking.
• The Disembodied: He's the mind and will of Solaris split from his body after causing a meltdown during the Solaris Project. Shadow sealed him in the Scepter of Darkness while Silver helped the Duke of Soleanna seal Iblis inside of Elise. Eggman accidentally frees Mephiles 10 years later, which allowed him to free Iblis from Elise and rejoin with it, recreating Solaris and providing the game's final boss.
• Eldritch Abomination: He is a spirit that embodies the mind and will of a god, but beyond this there is no real telling what he is. He doesn't even seem to have a true material form, the closest one being a primordial shadow (which already breaks our laws of physics). He reveals a crystalline form in Shadow's story, but nobody can seem to determine if this is truly what Mephiles looks like or if he simply absorbed the properties of the rocks around him at the time.
• Evil Counterpart: He's a malicious version of Shadow in numerous ways. Both he and Shadow were created to prevent untimely deaths, with Project Shadow being focused on curing disease, while Project Solaris was focused on removing victims of fate from the circumstances of their demise using time travel. Shadow even acted like Mephiles before the former's two heel-face turns pre- and post-amnesia. However, the biggest difference, as Shadow stated, is that Mephiles craves destruction. Shadow's psychotic tendencies were learned from trauma and further programmed into him by Professor Robotnik, but he eventually went back on them because he had a morality chain in Maria; Mephiles was axe-crazy from minute one through no fault of the scientists who made him and he had no morality chain to make him second-guess his actions. At its core, Mephiles is essentially a reflection of Shadow if the latter never had a shred of good inside to begin with.
• Evil Knockoff: When playing through the game in the intended story order (Sonic, then Silver, then Shadow), Mephiles can very easily trick the player into believing he's a creepy, demented, future version of Shadow taking on a different name, up until The Reveal that Mephiles is both a different person entirely and the cunning lesser half of a Mad God. This seems intentional on the writers' part since Mephiles tells Silver and Blaze his name off-screen, he seems to know Sonic personally despite being centuries in the future, and his introduction makes a big deal about his ability to time travel as though it were a corrupt, self-taught, Emerald-less substitute for Chaos Control. Playing through Shadow's story shows that it's all a matter of deceptive context; Mephiles knows enough about Sonic for it to appear personal because he's from the present day, his time travel powers come from being part of a time god, and his non-One-Winged Angel form looks like Shadow because he got it by absorbing his literal shadow and a portion of his energy.
• Evil Laugh: He lets out a good one when he kills Sonic.
• Evil Sounds Deep: His voice in the English dub is a considerably deep baritone that carries a sense of menace.
• Evil Twin: To Shadow, as he took on a physical form from Shadow.
• Faux Affably Evil: He has a particularly eloquent way of speaking, seemingly offers a way for Silver and Blaze to save the future, and bows to Shadow and thanks him for his form. When push comes to shove, however, he's a vicious and manipulative scoundrel who is quick to stop with the false compliments when somebody catches onto him.
• Final Boss: Not only is he the last boss of Shadow's story in '06, but he also serves as one for Shadow's story arc throughout the 2000's. After Shadow the Hedgehog established that he chose to not let his history influence his life anymore, Mephiles seems to represent life testing his resolve on that front.
• For the Evulz: The only suggestible reason that he wants to completely destroy space and time, and the most likely reason he doesn't simply go back in time and get what he wants in a few seconds. If his methods are anything to go by, it's also an implicit reason he decides to leave Iblis to his own devices in Silver's future instead of merging with him there.
• Forgot About His Powers: He can freely time travel without any use of the Chaos Emeralds, but no matter how this might help him when his plans take a sudden turn or otherwise don't work as intended, he never thinks to use it. He especially never thinks to stop the Solaris Project himself and stop himself from being fractured and sealed.
• The Fourth Wall Will Not Protect You: Downplayed. In the Last Story, he catches the purple Chaos Emerald and slowly turns his head. Perhaps due to the rushed development being…well, not polished, you'd be forgiven for assuming he's listening to something within the emerald, but in reality, he's looking at you, completely aware that you're there!
• Fusion Dance: Combines with Iblis to become Solaris, which is the basis for his overall plan. This is apparently more of a challenge than he might think, since he never merged with Iblis in the past after their creation, or in the future after any of the numerous times his physical form was destroyed. In order to handle it properly, Mephiles uses all of the Chaos Emeralds and some kind of 'pure' form of Iblis that the future version no longer qualifies as. The exact reason for the latter is never specified, but the most probable reason is that Mephiles and Iblis needed both versions of themselves to be from the same time period.
• Giant Space Flea from Nowhere: From Sonic's perspective. They never interact with each other onscreen or off. Sonic doesn't know Mephiles is even a thing, as his slice of the narrative is highly removed from anything having to do with Mephiles. The closest they come to any sort of interaction is when Mephiles spears him through the back in the Last Story.
• Hellish Pupils: His sclerae are red and lined with what look like stitches. And his pupils are narrow like a snake's.
• Hero Killer: Eggman and other villains have defeated Sonic in some form at least once. However, Mephiles was, until Surge (possibly), the only villain to have ever successfully killed the blue hedgehog. Unfortunately for him, though, it doesn't stick.
• Hidden Agenda Villain: We know he wants to destroy time, but we never get any confirmation on why. He never stops to explain why he does what he does, leaving many a player wondering. Shadow accuses him of craving destruction, but he never confirms or denies this.
• Humans Are the Real Monsters: He has no intention of letting humanity off the hook when they made Shadow seal him in the Sceptor of Darkness 10 years prior and he tries to discourage Shadow from forgiving them for what they will (probably) do to him. Shadow later accuses him of not truly wanting revenge, but he neither confirms or denies it.
• I'll Kill You!: His vow to Shadow while being absorbed into the Scepter of Darkness.
• In the Back: How he murders Sonic.
• It Only Works Once: Shadow was able to seal his spectral form inside the Scepter of Darkness, but after taking on a more corporeal form by merging with Shadow's... shadow... in the present, he grows powerful enough to simply shatter the Scepter when Shadow tries to put him back in it.
  Mephiles: The I of now absorbed your power through your shadow in the past. What may have worked ten years ago no longer does!
• Jerkass: In case being a mean, monstrous, deadly, and evil villain isn't enough, he also turns friends against each other, pretends he's helping people when he's manipulating them to get what he wants, and laughed when Elise cried after he murdered Sonic.
• Kick the Dog: He killed Sonic just to see Elise cry, and when she cried, he laughed in a very sadistic manner.
• Knight of Cerebus: Mephiles is unarguably one of the darkest, scariest, and most serious villains in the franchise. Other villains either had somewhat comical moments (even Metal Sonic) or took some time to voice their motives. Mephiles never does anything that can be considered (purposefully) comical and leaves the players to decipher his ''true'' motives for themselves. Whenever he enters the story, any sense of lightheartedness evacuates and he's constantly played seriously, toying with others and ruining their day for the fun of it before moving on with his big plan. Also, he's the only villain (in the games) to canonically kill a major character (the titular character), as well as succeeding in destroying the world as well as the fabric of existence. The damage he does is so staggering, so severe that the only way to clean up is to throw away the timeline and start a new one where he does not exist.
• Know When to Fold 'Em: The implied reason why he often pulls dirty tactics on his opponents is because he's lacking in Solaris's physical power and has to play mind games.
• Lack of Empathy: He gleefully taunts Omega about his part in sealing away Shadow in the future, and he laughs after murdering Sonic, and especially at Elise's sorrow and mental anguish at his (temporary) death.
• Large Ham: A big reason a lot of people love him in the English dub, what with being voiced by Dan Green and him completely making every scene with him count, having an over-the-top tone of voice during his Boss Banter. Emphasized during his and Silver's second meeting, where his posturing is very dramatic and detached for an otherwise serious conversation and he does a twirl as he takes his leave. Evidently, he has trouble containing his glee for deception and conspired murder.
• Laughing Mad: He belts out a psychotic laugh after murdering Sonic, as well as during his boss battles with Shadow. Even when Omega unloads his arsenal at him, he isn't affected by the attacks as much and simply sinks into the shadows, laughing.
• Leitmotif: "Mephiles' Whisper", an eerie piano theme that transitions to much louder instruments. He gets a short rendition later on called "Mephiles' Smile", which isn't as creepy, but still not the type of thing you'd play to put a child to sleep.
• Limp and Livid: When he introduces himself to Shadow, he slowly approaches him like a puppet while keeping his head down. He later does this again in the future just before Omega shows up.
• Living Shadow: Not only is he the Shadow Archetype to Shadow, but he's also born (well, reborn is more accurate) from Shadow's shadow. That's right, Shadow's shadow became a Shadow. Also a strategy he uses during his first boss battle to maintain control and avoid being attacked.
• The Magnificent: Unlike other Sonic animals who are named after their specific species, Mephiles is given an adjective name, hinting at his less-than-mortal nature.
• Manipulative Bastard: This along with The Chessmaster. He manipulated seemingly everyone in the story over 210 years just so he could cause Elise to develop feelings towards Sonic, only to kill Sonic, thus freeing Iblis from inside Elise, allowing himself to merge with Iblis to become Solaris. Even more impressive is that he doesn't actually lie to Silver at all. He just leaves out a "teeny" but important piece of information.
• Mathematician's Answer: When Shadow asks him if he's the one responsible for Silver's Bad Future, he simply says that the answer is yes and no. He never truly answers the question, but it ultimately matters none.
• Metaphorically True: Mephiles tells Silver that Sonic is the Iblis trigger, and therefore the cause of Silver's current Bad Future. After being warped back in time by Mephiles, Silver tries to kill Sonic to prevent his Bad Future from ever occurring. However, it is Sonic's death that is the event that causes Iblis' awakening in the first place.
• Names to Run Away from Really Fast: Overlaps with Meaningful Name. Mephiles = Mephistopheles, the demon from Faust, sometimes associated with Satan. And it gets even more sinister when you find out that that the name Mephistopheles either means "lying destroyer" in Hebrew or "light hater" in Greek. Likewise, Iblis is the Islamic name for the Devil before his fall. See below in the Iblis section for more.
• New Powers as the Plot Demands: In the Last Story, he shows the power to bring every Chaos Emerald right to him as soon as he gets one, a power that is extremely useful in the Sonic games, with no prior reference or reason for this power to have appeared. Unfortunately, it's one of many parts of the issues that make people believe he has an extremely large case of Complexity Addiction, since in the future, he didn't show this power at all, and he gave a Chaos Emerald to Silver to start off the plot by way of Time Travel.
• Nigh-Invulnerability: Just like Iblis, Mephiles' true form is pure energy and cannot be destroyed. The only way to stop him is to seal him away, and the only way to kill him is to prevent him from being created in the first place. He may feel pain and exhaustion, but Mephiles is fully aware that he's effectively immortal. He does not care in the slightest how many times he goes down, or how many timelines will go down with him in his quest to end all of existence.
• No Mouth: His muzzle kind of inflates and deflates when he talks, though.
• Non-Standard Character Design: His crystalline form he uses for half the game is much more detailed than any of the other anthropomorphic characters, and lacks feet. Even in his (very rare) other appearances, the amount of detail stays.
• Nothing Is Scarier: The Prima game guide doesn't seem to know what he is. His description mostly consists of theories and rumors, constantly referring to him as "it". The only thing it can say is that "it must never be allowed to capture the Chaos Emeralds."
• Obviously Evil: He introduces himself as Mephiles the Dark. When asked about himself, he falls silent and changes the subject. He looks like an evil twin of Shadow the Hedgehog (who himself already looks like an evil twin of Sonic the Hedgehog). It's almost mind-bending that Silver didn't realize Mephiles was a bad guy the very first time they met. He moves like a puppet, has soulless, feral eyes, and NO MOUTH. And that's when he is a Shadow doppelganger, to say nothing of his powered up form, which is crystal-like, emits blue flames, and has red scleras with green glowing cat irises. Dan Green's interpretation goes for a soft-spoken, polite tone of voice, that hides his malicious intentions, which come out prominently when he fights Shadow. On top of that, his name is a corruption of Mephistopheles.
• Omnicidal Maniac: He wants to destroy all time and every timeline. The reason given by Shadow is that Mephiles craves destruction.
• One-Winged Angel: Aside from his true form as Solaris, before fighting Shadow, he transforms into a crystalline version of himself as pictured above.
• One-Man Army: Literally. He can create clones himself to form an army and assault Team Dark. Even by himself, he's able to give Shadow, the Ultimate Lifeform, a difficult fight.
• Oxymoronic Being: Mephiles is a being made of shadowy substance, who acts through shadows, who is somehow created from a shattered being of light. Mephiles is all but antithetical to his own complete form.
• Promoted to Playable: He's playable in Sonic Runners and would later become an unlockable character in Sonic Forces: Speed Battle, even getting his own limited-time event dedicated to himself.
• Put the "Laughter" in "Slaughter": He lets an Evil Laugh rip after killing Sonic.
• Red Eyes, Take Warning: An inversion. His irises are normally green, while in his One-Winged Angel form, the sclera (the white part of the eye) turns completely red.
• Sadist: For the example, he made it his sole mission to cause pain to Elise throughout the entire course of the game, and even broke out into a maniacal laughter after ending Sonic's life.
• Sealed Evil in a Can: Shadow sealed him in the Scepter of Darkness.
• Self-Duplication: Both of his boss fights involve fighting different extensions of himself of various sizes in huge droves. Unlike with Iblis, his strategy is to overwhelm with comparative chip damage by having his inferior extensions attack with reckless abandon. When not fused with the ground, he creates illusory copies of himself to distract his opponents while the real him charges his next attack. During the last cutscene of Shadow's story, he powers himself up with the energy of two Chaos Emeralds in order to create an army of full-fledged copies. Despite the favorable odds, he doesn't create enough copies to outlast Shadow at full power and they all end up getting mulched.
• Slasher Smile: He doesn't have a mouth, but when he finds the purple Chaos Emerald at the beginning of the Last Story, the way he knowingly looks at the camera, the fact that the song playing at the time is called "Mephiles's Smile," and what he does seconds later all but state that he's smiling wickedly now that he's finally ready to move forward with his plan.
• The Sociopath: The universe is just a stress ball to him. And he'll play with it until it breaks.
• Squishy Wizard: Played with: He's very intelligent, capable of teleportation, time travel, and energy manipulation. However, he has noticeable trouble taking physical punishment while fighting Shadow, although he was shown taking on and withstanding several shotgun/minigun blows from Omega when confronting him in a cutscene.
• Story-Breaker Power: One problem that he shares with the overall plot device is that he can Time Travel to any point in time at will and even transport anyone through any point in time. In addition, he can apparently summon all seven Chaos Emeralds to his side at any time. It's a wonder as to why the story doesn't end in seconds because of this.
• Straw Nihilist: He asks Shadow why he continues to fight and attempt to protect humanity when they'll only persecute him later on.
• Time Travel: Seems to be one of his main abilities. He can banish others to other time periods as well. This unfortunately leads to one of many narrative confusion (see Complexity Addiction above).
• Turns Red: In his second boss fight, he starts leaving behind clones of himself, possibly to try and confuse the player.
• Vile Villain, Saccharine Show: He's a truly mean, malicious, manipulative, twisted, depraved, and dark villain, making him especially stand out in the normally bright Sonic franchise. The whole "assassinating Sonic" bit adds onto it as well.
• Villain Has a Point: He isn't wrong to think that humans have a tendency to do bad things to people they deem too powerful to trust or with forces they find too powerful not be exploitable. Not only is he a victim of this, but Shadow was as well to a degree, and, as Omega tells him, it's not out of the question that it might happen again.
  Mephiles (after Flame Core): Humanity wasn't just jealous of your power, they feared it.
  Omega (after Wave Ocean): Eventually, when someone or something is seen as too powerful, it is seen as a threat.
• Villains Never Lie: Technically, he wasn't actually lying when he told Silver that Sonic was the Iblis Trigger. What he does is omit the fact that killing Sonic is what makes him the Iblis Trigger.
• Walking Spoiler: Due to his affiliation with Iblis and Shadow, he's never so much as alluded to in any of the promotional material, unlike Iblis. He's not even shown clearly in the Prima game guide.
• We Can Rule Together: He tries to pull this in Shadow's story twice, offering him a place at his side in order to get even with humanity before they have the chance to betray him. Ironically, he has a pretty good reason to hate Shadow. That means he probably intended to kill him after he was no longer useful. Thankfully, his manipulative tactics fail both times.
• Would Hurt a Child: He murders the fifteen-year old Sonic to further his plans. In cold blood.

Iblis

Debut: Sonic the Hedgehog (2006)

A lava monster that devastated the entire world in the future where Silver and Blaze come from. He is the other half of Solaris, being his raw power and strength.

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• The Bad Guy Wins: In Silver's era, 200 years in the future, Iblis has been the kingfish since only a few days after the starting point of the game in the present. His path of destruction has rendered the world inhospitable, his minions have fully infested the planet, his own brother can't tell him what to do, his physical form can regenerate from anything the likes of Silver can throw at him, and the only other threat to his reign - Shadow the Hedgehog - was blamed for his release and subsequently sealed away forever. Even if his rampage did finally come to an end, 200 years is a long time for the world to be on fire. To add insult to injury, Silver's victory over him is ultimately proven pointless when Solaris' erasure causes the future to be devastated for a different reason, AND Iblis is implied to have survived Solaris' erasure and is devastating a different timeline because of Silver and Blaze's actions.
• Demonic Possession: Averted. Despite being sealed inside of Elise's and later, Blaze's soul, Iblis makes no effort to take control of them. That is, assuming the cause of Crisis City's existence in Sonic Generations wasn't an attempt to take control of Blaze.
• Eldritch Abomination: Both as himself and as part of Solaris.
• Evil Is Burning Hot: He literally set the entire world on fire in the future.
• Feral Villain: He's a mindless force of nature more than an actual villain, and has no other motive other than wanting to destroy everything in existence. This is due to him being Solaris' raw power, with no mind to control him.
• Fusion Dance: With Mephiles to become Solaris.
• Generic Doomsday Villain: He has no personality to speak of and is simply a mindless force of destruction.
• Go for the Eye: His weak point in his second and third forms is his massive green eye.
• Literal Split Personality: Iblis and Mephiles are two halves of the whole of Solaris. Remerging with it is Mephiles' goal.
• Living Lava: Originally a living flame, Iblis is a monster made out of lava, and is the source of both the smaller lava monsters and the lava-like wasteland of the Bad Future.
• Mad God: Again, Solaris, although it's "mad" as in "rage" and not "mad" as in "insanity."
• Magma Man: His body is made of the stuff.
• Meaningful Name: In Islam, Iblis was a djinn who refused to bow to Adam despite God's command, and was cast out. He then becomes A'Shaytan, or Satan. In other words, like Mephiles, his name references the Devil himself.
• Not Quite Dead: Possibly implied in Sonic Generations, as Crisis City still exists with Iblis's minions running around and Blaze states that Crisis City was her fault, possibly suggesting that Iblis still is or was sealed in Blaze, and given how Blaze's memory remained unchanged, it's possible her experience remained unchanged.
• Playing with Fire: A given, being a god of fire made of lava.
• Resurrective Immortality: Silver and Blaze have defeated him before, as have Team Sonic, but Iblis always revives no matter what.
• Sealed Inside a Person-Shaped Can: He was sealed inside of Elise. At the end of Silver's story, he's sealed inside of Blaze, but this doesn't stop Mephiles from merging with the present one inside of Elise.
• Victory by Endurance: A staple of an immortal warpath. Even though Silver and Blaze's day-to-day involves destroying Iblis' physical form and then waiting for him to resurrect so they can hunt down and destroy him again, Iblis has already reduced them to recognizing that they're hopelessly fighting the inevitable. If they slip or even die of old age, Iblis' rampaging would simply continue like it did before their time, as it would for any prior resistance. Averted when Silver and Blaze manage to be the ones who finally get rid of him in their era without the need to alter the past.

Solaris

^{Click here to see Solaris' second form}

Debut: Sonic the Hedgehog (2006)

A godlike being of light and time, revered by the people of Soleanna as a deity.

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• Attack Its Weak Point: Its consciousness, represented by a fiery orb, is its main weak point.
• Angelic Abomination: It's second, and final form has an angelic appearance but remains every bit as malevolent as its initial form.
• Ax-Crazy: Remember how psychopathic and insane Mephiles is? Solaris is like that, too, given that Mephiles is Solaris' mind.
• Beam Spam: Loves firing lots of laser beams, especially once it Turns Red. Oh, and these lasers are strong enough to injure Super Sonic, Super Shadow, and Super Silver.
• Bishōnen Line: A Downplayed variant. Its second form is angelic-looking and even beautiful in an awe-inspiring, otherworldly way, but it loses all of its humanoid features, that it had in its first form, which was a demonic-looking being.
• Eldritch Abomination: It is a godlike monstrosity that can destroy timelines and dimensions at a whim.
• Evil Is Not a Toy:
  • The Duke of Soleanna seriously thought trying to harness the time-travel powers of a god was a good idea. Though whether or not Solaris was always evil is up for debate.
  • Eggman himself initially seeks to control Solaris' flame in his usual efforts to Take Over the World. Needless to say, he changes his tune completely once Solaris returns and starts tearing the universe apart.
• Evil Living Flames: Solaris was originally a sentient flame entrusted to the royal family of Soleanna. Averted, as it was never evil until the Solaris Project split the entity in 2. It was originally called the "Flame of Hope".
• Fallen Angel: Its appearance and backstory seem to invoke this. Solaris was once a light-bringing deity worshipped by the people of Soleanna. Now, it's descended into a Mad God that seeks to devour all of time itself. Its final form is even a shiny, white entity with a pair of angelic wings.
• Final Boss: Of Sonic the Hedgehog (2006).
• Fusion Dance: Solaris' rebirth is from the combination of Mephiles and Iblis.
• Generic Doomsday Villain: Solaris’ motive for trying to destroy existence isn’t clear and Solaris itself never speaks. Mephilis averts this, but Solaris itself plays it straight after Mephilis rejoins with Iblis.
• God of Light: As its name implies, Solaris is a solar deity.
• Greater-Scope Villain: As the progenitor of Mephiles and Iblis, the Mad God that the people of Soleanna fear, and the ultimate threat to the universe that the heroes seek to stop, Solaris serves as this for Sonic '06 as a whole.
• Light Is Not Good: A being of heavenly light who is capable of destroying time itself.
• Mad God: Though like Chaos, it's more due to rage than outright insanity.
• Meaningful Name: Being a God of light who is associated with the sun, it is appropriately named Solaris.
• Motif Merger: Mephiles has a sinister-sounding piano Leitmotif (with a techno remix as his boss fight music). Iblis is accompanied by a bombastic, orchestral score. When the two fuse together to form the True Final Boss Solaris, the phase 1 boss music is Mephiles' leitmotif, performed by Iblis' bombastic orchestra. Here are possible readable lyrics.
• Non-Linear Character: According to Dr. Eggman, Solaris simultaneously exists in the past, present, and future. Meaning that if Sonic, Shadow, and Silver are to have any hope of stopping it, they'll have to battle it in the past, present, and future simultaneously.
• Ominous Latin Chanting: The music in phase 1 of Solaris' boss fight includes Latin chanting.
• One-Winged Angel: After Solaris is defeated, it comes back for more in an angelic form.
• Physical God: An incredibly otherworldly one, but still has somewhat of a physical form. It's the first final boss fought in a Super form (outside of the Sonic Advance Trilogy and Sonic Rush) to be able to knock rings out of a Super character, meaning physically harming them. To contrast this, Perfect Chaos, Finalhazard, Metal Overlord, and Devil Doom were only able to slow them down. With only THE END surpassing it.
• Reality Warper: Creates a new, fragmented world just so it can use it to destroy time.
• Ret-Gone: After being defeated, Sonic and Elise are sent back in time to before Solaris' creation. Elise blows out the Flame of Hope, Solaris' original form and conscious mind, thereby erasing it from existence.
• Sealed Evil in a Can: Not evil in personality so much as a problematic force of nature. Solaris' original earthly existence was nothing more than the living flame of a literal oversized candle called the "Flame of Hope," and was worshipped as a god by Soleanna's people. Its only known attributes to the naked eye were that it was white in coloration and it only needed to remain undisturbed instead of needing fuel. The Duke of Soleanna saw fit to extract its hidden power from its true dimension of origin using the flame as a catalyst. However, whether because Solaris was crazy, prideful, or had yet to be cognizant, it purposely sabotaged the Solaris Project by its own hands, freeing itself from what little control the Duke had over it, but having the side effect of splitting it into two different entities. The two beings to come out from the event were Mephiles the Dark, Solaris' intellect, and Iblis the Flames of Disaster, Solaris' supposed "wrath" and raw power. Both beings would eventually be sealed away and reconverge into a new godly form after ten years, but getting rid of all three permanently was only possible by going back in time and blowing out the seemingly innocuous original flame they were conceived from.
• Shows Damage: Solaris' first form's stony body flakes off when taking damage.
• Spacetime Eater: Easily capable of devouring entire dimensions and timelines.
• True Final Boss: Of Sonic '06, where it can only be fought after finishing the other three story campaigns and unlocking the Last Story mode.
• Turns Red: During the fight, he attacks more frequently and increases the number of laser beams he fires as he takes damage.
• The Voiceless: Doesn't say a word.

Handheld Spin-Offs

Dr. Eggman Nega

"Now, the world shall be my plaything! I shall bring about an age of fear and chaos! And it shall be glorious!"

Debut: Sonic Rush

Voiced by: Chikao Ohtsuka (Japanese), Mike Pollock (English)

Dr. Eggman's descendant from the far-flung future where Silver is from.

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• Alternate Self: He's initially introduced as one of Eggman, though it later turns out that he's actually his descendant from the future.
• And I Must Scream: The Sonic Rivals series has him on both ends of the trope. In the first game, he uses a special camera to turn people into cards and planned to do this to the entire world. He gets sealed in a card himself by the end of the first game, but he breaks out of the card by the second game, only to get trapped in the Ifrit's dimension at the end.
• Arch-Enemy: To Blaze and later Silver.
• Ax-Crazy: Unlike Eggman, who only uses destructive forces as a means for taking over the world, Nega actually gets a kick out of wanton destruction.
• Badass Bookworm: Much like Eggman.
• Bald of Evil: He is bald, and is completely insane, wanting to destroy the world instead of conquering it, or turn it into a card for his collection. He doesn't even seem to care about dying along with it.
• Big Bad: Of the Sonic Rivals games.
• Big Bad Duumvirate: With Eggman in the Rush games.
• Calling the Old Man Out: Eggman Nega's primary motivation in Sonic Rivals is revenge against Dr. Eggman (who is his ancestor) because Eggman's various failures made him be looked down upon despite having high potential in terms of intellect.
• Camera Fiend: A dark twist on the trope. In the first Rivals game, he uses a special camera that turns anything or anyone into a card.
• Cool Shades: Even cooler than Eggman's pince-nez, Eggman Nega sports a Kamina-esque visor.
• Characterization Marches On: in his first appearance, he seems content with simply ruling the world and works well with his ancestor. The next game would have them still work together, but show he is perfectly willing to destroy the world and himself in it. It's at this point Dr. Eggman realizes he is out of his mind.
• Dub Induced Plothole: A rare inverted example. Eggman Nega's new backstory was given in Sonic Rivals, an outsourced game that never got a Japanese release. Despite this, the Sonic Channel and the Mario and Sonic at the Olympic Games series go with the Rivals backstory. That being said, both consider him more of an enemy to Blaze than Silver.
• Evil Genius: And even has the benefit of 200 years of technological advancement over Eggman.
• Evil Old Folks: Probably. He has a gray mustache.
• Evil Twin: Of Eggman, at least in the Rush series. The Rivals series reveals that he is actually Eggman's descendant.
• Fat Bastard: And even more of a bastard than Eggman.
• Faux Affably Evil: In a way that contrasts Eggman's whimsical-yet-calculating demeanor, Eggman Nega appears to be pleasant and well-mannered, but is a raving psychopath under the veneer of sophistication and class.
• Foil: To our own Dr. Eggman. While both scientists are incredibly arrogant utter jerkasses, the good doctor we all know and love is frequently shown to have a degree of rationale below his surface of hamminess and immaturity most of the time, aiming to rule the world rather than destroy it. Nega, by contrast, comes off as soft-spoken and relaxed on the surface but thrives on destruction and lacks any sort of restraint. Also, whereas Eggman tends to walk off his various defeats and try again after a brief fit or two, Nega is a Sore Loser unable to handle the humiliation given by failure, and would be willing to blow up the planet if it meant he could get a win.
• For the Evulz: He does have a plan, but it's not hard to see that he enjoys the chaos he causes.
• Four Eyes, Zero Soul: Like his ancestor, Nega wears a pair of Kamina-like glasses with him, but is completely devoid of reason, just wishing to see the world burn.
• Freudian Excuse: In Rivals, he was mistreated because of his ancestor's many failures.
• Hoist by His Own Petard: In Sonic Rivals, he's trapped in a card himself due to an accident with the camera. In Sonic Rivals 2, he unleashed the Ifrit and, following its defeat, was sealed in the Ifrit's dimension.
• Identical Grandson: He is physically identical to Eggman, aside from his mustache being white. And in the Rivals series, he exploits this by disguising as him.
• Kid from the Future: He is Eggman's descendant from approximately 200 years into the future.
• Knight of Cerebus: In contrast to how Eggman is often portrayed as Laughably Evil, anything involving Nega is treated far more seriously.
• Make Wrong What Once Went Right: Eggman Nega's motivation in the first Sonic Rivals game, which is only revealed in Shadow's playthrough, is to erase the "failures" of Dr. Eggman, because Nega apparently didn't have anyone recognize his genius because of Eggman's failures.
• The Man Behind the Man: He and Eggman pull this off in Sonic Rush Adventure, being the ones who created Captain Whisker to steal the Jeweled Scepter.
• Manipulative Bastard: To Rouge in Sonic Rivals 2, hiring her to collect the Chaos Emeralds.
• Mask of Sanity: He puts up a polite, gentlemanly facade, but underneath it, he's a complete psychopath who, unlike Eggman, has no redeeming qualities.
• Meaningful Name: Aside from being short for negative, ネガ/nega is the Japanese term for a film negative, which swaps the light and dark colors of a film. Likewise, the red and black sections of Eggman Nega's outfit are the opposite of his ancestors, and his white mustache contrasts Eggman's darker stache.
• Never My Fault: In Rivals, his motive is that due to Eggman's many failures, the Robotnik family name was ruined and the world refused to recognize his genius, motivating him to travel back in time, erase Eggman's failures, and alter his family history. When Shadow learns of this, however, he dismisses it, stating that Nega is merely using that as an excuse to blame his own failures on the past.
• Omnicidal Maniac: In both the Rush and Rivals series, he wants to destroy the entire world somehow.
• Palette Swap: Of Eggman. It made sense when he was supposed to be Eggman's dimensional counterpart, but his official backstory is that he's a descendant of Eggman.
• Psychopathic Manchild: And he leans more on the "psychopathic" part than even his ancestor.
• Retcon: Originally, Eggman Nega is introduced in the Sonic Rush series as an alternate counterpart of Eggman from the Sol Dimension; during the game's final story, he claims the Sol Dimension is "his world". The Sonic Rivals series would retcon Nega's origin, so instead he is Eggman's descendant from the same time period as Silver. The retcon would provide more backstory and motivation from his original self, but no main game would explain why Nega was in a different dimension if he is from Silver's future.
• Sarcastic Clapping: How he introduces himself in Sonic Rush Adventure.
• The Sociopath: Unlike the goofy Eggman, who despite being evil, has shown to have some form of self-restraint, Nega is completely devoid of empathy and his dream is to turn the world into a playground of destruction.
• Sore Loser: Unlike Eggman, who takes his defeats gracefully in comparison, if Eggman Nega goes down, he tries to take the entire world with him.
• Strong Family Resemblance: To Eggman and Gerald, his ancestors.
• Then Let Me Be Evil: It's been heavily implied that the reason he became a villain in the first place was because of the mistreatment He recieved due to being related to Eggman.
• To Create a Playground for Evil: His motivation, shown in the quote above.
• Viler New Villain: Intended to be what Eggman would be like without his more sensible or endearing traits. While Eggman'll pull an Enemy Mine so the world doesn't get destroyed, Eggman Nega is Ax-Crazy and wants mass-destruction in his plots (if destruction isn't his flat-out goal). And in contrast to how Eggman's goofier traits hide a somewhat pragmatic schemer, Nega's seemingly collected persona hides a stark raving lunatic.
• Villainous Breakdown: At the end of Sonic Rush Adventure, he activates the Egg Wizard's Planet Buster Laser in a final attempt to defeat Blaze and Sonic, much to the dismay of Eggman.
• Villains Want Mercy: He's a completely vile bastard who gleefully tries to destroy the world and cause as much damage as possible, but is quick to beg and snivel when things don't work in his favor. In Espio and Sliver's story in Sonic Rivals 2, he's pinned down by debris when the Ifrit is defeated and has the sheer nerve to beg Silver and Espio to save him. They rightfully refuse and leave him behind in the Ifrit's dimension.
• Vocal Evolution: Originally, he used the same voice clips as Eggman. As of Rivals 2, Mike Pollock gives him a more distinctive, higher-pitched voice than Eggman. That said, the Mario and Sonic series would just use Eggman's regular voice in a more sophisticated tone.
• White Hair, Black Heart: Played With. He is bald, but his mustache is white. He is also a complete utter psychopath.
• You Have Outlived Your Usefulness: In Rush Adventure, he taunts Blaze by telling her that it was her family that enabled him to obtain the Jeweled Scepter, as they safeguarded it for generations, and now that he no longer needs them, he can easily use his new power to destroy them along with their entire kingdom.

Johnny

Debut: Sonic Rush Adventure

Voiced by: Christopher Pellegrini (English)

A robotic racing pirate from the Sol Dimension, and Captain Whisker’s first mate.

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• Arrogant Kung-Fu Guy: Incredibly prideful, he believes himself the fastest in the world, but keeps losing his races against Sonic.
• Dirty Coward: Flees after the last battle with Captain Whisker when it becomes clear the fight isn’t going their way, leaving his captain to their enemies’ mercy.
• The Dragon: Captain Whisker's first mate.
• Dual Boss: With Captain Whisker.
• Green and Mean: Mostly painted green, and very much a villainous figure.
• Recurring Boss: Retrieving the chaos emeralds requires the player to challenge him again and again to out-race him. The player only takes him in a direct fight near the end of the game.
• Red Baron: The self-styled "Sultan of Speed".
• The Rival: Sees himself as one to Sonic, though he really only qualifies during the events of Sonic Rush Adventure.
• Speed Demon: And how. He considers himself the fastest in the world, and takes great pride in that label.
• Super-Speed: On a Jet Ski, he can at least keep up with Sonic in a race, and his rocket boosters give him the power of Flight at great speed. Like Metal Sonic, however, he can’t stop or turn as tightly as he’d probably like.
• What Happened to the Mouse?: Despite explicitly surviving the events of his debut game, Johnny hasn’t been seen since then.

Captain Whisker

Debut: Sonic Rush Adventure

Voiced by: Shinya Fukumatsu (Japanese), Lonnie Hirsch (English)

A robot pirate from the Sol Dimension.

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• All There in the Manual: According to a story posted on Sonic Channel in 2021, Captain Whisker is "alive", but missing his head, leaving him unable to think and only able to follow his most recent programming, which is to find and steal the Jeweled Scepter. Blaze still fights him.
• Arch-Enemy: With Eggman Nega out of the picture, he's become the closest thing Blaze has to one.
• Berserk Button: Don't pull his mustache.
• Breath Weapon: Breathes out fire during the fight with him.
• Burning with Anger: One of his cutscene portraits has his head aflame.
• Cyber Cyclops: He has two eye sockets, but only the left one has a visible (and glowing) eye, presumably to simulate the stereotypical pirate eyepatch.
• Dual Boss: With Johnny.
• Hijacked by Ganon: Hijacked by Eggman and Eggman Nega. Who created him.
• I'll Never Tell You What I'm Telling You!: How Sonic and the gang manage to enter his hideout. Even more embarrassing in that it's Marine who tricks him into revealing how to unlock the door.
• Ineffectual Sympathetic Villain: While not harmless, as he can hold his own in a fight, in terms of competence... he's a little lacking.
• Killed Offscreen: It's implied he was caught in the explosion after Sonic and Blaze defeat the Ghost Titan.
• Leitmotif: Has his own sinister, cartoonish theme that plays whenever he appears in cutscenes.
• Paper-Thin Disguise: If the big moustache, the mischievous grin, the oddly familiar mustached skull logo on his hat, large body and red clothing don't tell you anything, he was created by Eggman and Eggman Nega
• A Pirate 400 Years Too Late: Possibly more.
• Pirate Parrot: Mini and Mum.
• Ninja Pirate Zombie Robot: Well, he's a pirate robot, anyways.
• Rocket Punch: One of his main attacks.
• Shockwave Stomp: Another way he attacks.
• Suspiciously Similar Substitute: As a round antagonist with an immense mustache who wears lots of red with gold trim, he shares loads of Eggman's character design, which makes sense given how it was Eggman and Eggman Nega who created him.
• Verbal Tic: "-noda" in the Japanese version.
• Villain of the Week: Another one-shot villain who only appears in Rush Adventure, although he gets upstaged by both Eggman and Eggman Nega.

Mini and Mum

Debut: Sonic Rush Adventure

Two tiny robotic minions that serve Captain Whisker.

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• Punny Name: Their names combined make the word "Minimum".
• Satellite Character: They are never seen separated from Captain Whisker.

Ifrit

Debut: Sonic Rivals 2

The Final Boss of Sonic Rivals 2, the Ifrit is a monster from the Chaotic Inferno Zone. Eggman Nega learned of its existence from entries in Gerald Robotnik's journal describing its fearsome power. Nega then sought to unleash the Ifrit upon Sonic's world.

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• Evil Is Burning Hot: The Ifrit is a fire monster who recides in a dimension of fire and lava.
• Suspiciously Similar Substitute: The Ifrit is basically Iblis from Sonic the Hedgehog (2006) in all but name. Both are destructive monsters of fire, both have names that begin with an I, both come from a dimension of fire and lava, and both threaten Silver the Hedgehog's world. Their names even have the same origin; an ifrit is an evil djinn in Islamic mythology and Iblis the leader of evil djinns according to Islamic texts.

Console Spin-Offs

Void

"Am I alone? I am not alone... My friends, my brothers, I want to be whole..."

Debut: Sonic Shuffle

Voiced by: Urara Takano (Japanese), Lani Minella (English)

The main antagonist of Sonic Shuffle. He represents negative feelings. Following his creation, Void sought the Precioustone to become whole, but his dark powers caused destruction all over Maginaryworld.

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• Anti-Villain: Void is unique among other rogues in the series, as his motivation is to fill out his own emptiness, not a lust for power, control, revenge, or destruction.
• Casting a Shadow: Void commands the power of darkness.
• The Corruption: He inadvertently does this to each dream world he passes through, turning them into radically different environments that are slowly destroying them and Maginaryworld.
• Dark Is Not Evil: Despite being the embodiment of darkness, he doesn't intend to be evil.
• The Eeyore: Always in a state of sadness and depression due to being the embodiment of negative feelings and also because of his separation from Lumina.
• Eldritch Abomination: Void's monster form. Its head is its chest, and it has multiple eyes poking out of it.
• Fusion Dance: Does this with Lumina to bring back Illumina.
• Hates Being Alone: He doesn't understand why Lumina is trying to keep away from him. He only longs to be reunited with her once again.
• I Just Want to Have Friends: All he wants is to become whole and be friends with Lumina.
• Leitmotif: Dark Sharpener, which plays when he shatters the Precioustone at the start of a board, and when a player encounters him on the board.
• Meaningful Name: Void is a being of darkness.
• Monochromatic Eyes: Has big shiny alien-like eyes.
• Names to Run Away from Really Fast: See Meaningful Name above.
• One-Winged Angel: Void becomes a huge monster at the end of the game.
• Power Incontinence: When he tracks down the Perfect Precioustone in an attempt to become whole, his dark powers cause it to shatter upon touching it, indicating that he has little to no control over his powers.
• The Sacred Darkness: By the end of the game. He's necessary alongside positive emotions to give people the ability to dream.
• Split-Personality Merge: Lumina and Void are both parts of Illumina; fusing brings her back.
• Villain of the Week: His sole appearance was in Sonic Shuffle, and takes the brass ring from Eggman as the game's villain off the bat.
• Woobie, Destroyer of Worlds: He has no idea what he's done wrong or even why he exists, and feels tormented by Sonic and friends wishing to stop him. He also kickstarted the whole plot in the first place and turns into a terrifying monster at the climax.

Erazor Djinn

^{Click here to see Alf Layla wa-Layla}

"You filthy rat! I'll shut that mouth of yours permanently!"

Debut: Sonic and the Secret Rings

Voiced by: Masashi Ebara (Japanese), Peter Cormican (English)

The evil genie of the lamp who wants to erase the Arabian Nights.

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• Adaptational Villainy: In the original story of Aladdin and the Magic Lamp, the Genie of the lamp may not have been as lovable as the Disney version, but he was certainly not this malicious.
• Ain't Too Proud to Beg: As he's being sealed in his lamp by Sonic's third wish, Erazor shamelessly begs Shahra, the recipient of most of his misdeeds, for help. He receives none.
• And I Must Scream: Sonic uses his last wish to seal him in his lamp for eternity, and that's before his death in the lava.
• Anime Hair: Similar to Shahra, Erazor's hair is in a ponytail that somehow curls upwards. However, his ponytail is sharper than Shahra's, making it look like a razor.
• Badass Cape: He takes it off when he fights Sonic.
• Big "WHY?!": His final word, right before being sucked into his lamp.
• Beg the Dog: In the ending of the game, once Sonic forces Erazor Djinn to be permanently sealed off inside his lamp for a third wish, Erazor himself starts begging Shahra to rescue him from his fate, complete with begging that "we can start over", in spite of the fact that he once tried to force her to collect the Seven Rings for him in the beginning of the game by putting a curse on her that would've sapped her of her lifeforce, and even murdered her once she took the strike meant for Sonic, an act he felt no remorse over. Naturally, Shahra refused to interfere, and Erazor was sealed off inside his lamp for eternity.
• Beware My Stinger Tail: As Alf-Wayla-La-Wayla, his sword has now become his tail.
• Big Bad: Of Sonic and the Secret Rings, wanting to destroy the world of Arabian Nights from within its pages, and plans to do the same with Sonic's world once he finishes that task.
• Black Eyes of Evil: Black sclerae with red pupils to be exact.
• Body Horror: His transformation was both unsettling and painful, to say the least.
• The Bus Came Back: While still dead in canon, he returned as a "buddy" character in the non-canon Sonic Runners. He (or rather, several voiceless clones of him) also appeared as a minor Arc Villain during an event in the same game.
• Clipped-Wing Angel: His transformation is actually incomplete. Because he got the wrong sacrifice, he wasn't able to absorb all seven World Rings.
• Cool Sword: One that resembles a cross between a scimitar and a straight-edge razor.
• Death by Irony: Used a Flame of Judgement curse on Sonic to force him to retrieve the Sacred Rings. Guess how he dies?
• Domestic Abuser: Heavily implied to be this to Shahra. His We Can Rule Together offer to her sounds like something an abusive boyfriend would say and his Villainous Breakdown sounds like an abusive boyfriend trying to get his girlfriend back on his side.
  Shahra! I know you're there! Please, stop him!!! We can start over, the two of us! I swear! I swear it!!!
• Duel Boss: Despite being an all-powerful genie whose power is described by King Solomon as "godlike", when it's time for the final battle with Sonic, he doesn't fight him with anything but his sword.
• Evil Is Hammy: He's very dramatic in speech and wastes no time hamming it up.
• Evil Redhead: He has red hair and is probably one of the most malicious villains in the franchise.
• Eldritch Abomination: In his true form.
• Family-Unfriendly Death: Baked in lava.
• Final Boss, New Dimension: The fight against Alf-Layla-wa-Layla takes place in a giant black void. Considering that at this point, all but the last few pages of the Arabian Nights have been sucked dry, this makes sense.
• Freudian Excuse: It's mentioned that he's been abused in the past. Though said abuse was partly a punishment for crimes he committed, so it doesn't diminish his Hate Sink status.
• A God Am I: In his One-Winged Angel mode.
  Erazor: I am... the creator... The stories of this world... are mine...
• Hate Sink: Erazor Djinn is a power hungry, unempathetic and purely self-serving douchebag who has nothing remotely sympathetic or likable going for him, and he acts extremely arrogant and haughty towards everyone around him. He treats Shahra like dirt and after her sacrifice, he has the gall to mock her as being weak. And to say nothing of how he puts Sonic's life on the line to further his own ends, and talks down to him and insults him as being a rat. You won't so much as shed a tear for him when Sonic seals him in the lamp forever and destroys it.
• How the Mighty Have Fallen: Erazor Djinn aspires to become God, all but succeeds, and then loses so thoroughly he's reduced to begging one of his biggest victims to save him from losing everything.
• Humiliation Conga: Hoo boy! It wasn't enough that he had to get his ass kicked by Sonic. Oh no, he had to suffer. To elaborate, Just as he's boasting to Sonic that he's immortal, Sonic pulls out the lamp used to seal him away. Sonic then uses the lamp to painfully force Erazor to grant him three wishes: That he revives Shahra, return the Arabian Nights to the way they were, and be sealed in the lamp for eternity. The mighty genie is reduced to shamelessly begging Shahra, a weak genie of the ring, for help as he's sealed away. The final nail in his coffin is when Sonic throws the lamp into the Ifrit's lava pool, destroying Djinn forever.
• Iaijutsu Practitioner: In the first boss battle with him, he sometimes closes his razor mid-fight so as to strike out with it.
• In Their Own Image: His ultimate goal, once he's acquired the World Rings, is to remake the world of the Arabian Nights in his image, and then move on to Sonic's world and repeat the process. He even states as such during the final boss.
  Erazor: I am Alf Layla wa-Layla. I am the Arabian Nights. I will be its new creator! I will remake this world and this reality in my own image!
• Jackass Genie: Oh yeah. Ironically, when Sonic gets a hold of his lamp and makes him grant his wishes, he's unable to do anything but grant them exactly how Sonic wants them, even when the last one is directly calling for his eternal imprisonment.
• Kick the Dog: Mocks Shahra as a mere Genie of the Ring after killing her.
• Killed Off for Real: One of the very few antagonists Sonic has definitively killed that's not a machine. Not to say he didn't have it coming.
• Lack of Empathy: Feels no regret when he accidentally kills Shahra, and even has the gall to mock her.
• Manipulative Bastard: He manages to use Shahra to get Sonic to gather the seven World Rings for him and then coerce the genie of the Ring to give them to him.
• Meaningful Name: Both. Erazor Djinn is a mix of 'Eraser' and 'Razor', as to how he's tearing apart the Arabian Nights, and he uses a straight razor as a sword. And again as Alf-Layla-wa-Layla, which translates as 'A thousand nights and one night'. He's calling himself The Arabian Nights. Also doubles as a Bilingual Bonus.
• Misanthrope Supreme: In the past, he was punished for his misdeeds and sealed away in his lamp, to be trapped until he granted the wishes of 1000 people. When his sentence was finished, rather than mellow him out, all it did was renew Erazor's hatred for people.
• Multi-Armed and Dangerous: Has six arms as Alf-Layla-wa-Layla.
• Opportunistic Bastard: Early on, he tries to shoot Shahra with a flaming arrow, but Sonic took the hit and was afflicted with a life-draining curse. Erazor uses it to his advantage, telling Sonic he'll remove the arrow and break the curse if Sonic gathers all of the World Rings for him.
• Orcus on His Throne: Spends his time at his Night Palace while Sonic's out collecting rings. He later summons the Ifrit demon to burn the remaining pages of the book.
• Power Echoes: Alf Layla-wa-Layla's voice has a prominent echo effect.
• Power Floats: Is never seen walking.
• Power Makes Your Voice Deep: Inverted for Alf Layla-wa-Layla, who has a much higher-pitched voice than Erazor Djinn.
• Real Men Wear Pink: Has pink skin.
• Sadistic Choice: Gives one to Sonic at the outset of the game via the flame of judgement curse: Either Sonic delivers the Seven World Rings to him, or the flame will kill him. Then it's subverted when he reveals that he was planning on sacrificing Sonic to obtain complete control of the rings.
• Sealed Evil in a Can: Prior to the game, he was imprisoned in his lamp and would not be released until he granted the wishes of 1000 people. He gets sealed back in the lamp at the end of the game, though then the lamp is destroyed.
• Slouch of Villainy: He's seen as this in the opening before shifting to an Ass Kicking Pose for no stated reason.
• Soul Jar: He claims he's got Complete Immortality (to his credit, he did just survive a No-Holds-Barred Beatdown), but Sonic is able to finish him off by sealing him inside his lamp permanently and then tossing it into lava.
• Spell My Name with a "The": He doesn't insist on it and never refers to himself this way, but Shahra always refers to him as the Erazor Djinn.
• Vile Villain, Saccharine Show: He is by far the darkest of the Storybook Series villains, the whole murdering Shahra onscreen thing doesn't help his case.
• Villainous Breakdown: He goes down kicking and screaming when Sonic reseals him back into his lamp.
  Erazor: Shahra! I know you're there! Please, stop him!!! We can start over, the two of us! I swear! I swear it!!! The world is mine!!! I cannot be denied by that filthy rat!!!! WHYYYYYYYYYYYYYYY?!?!
• Villains Want Mercy: He's reduced to begging Shahra to help him when he's being forcibly sealed into his lamp.
• Villain of the Week: Another one-shot villain who is the threat of a Sonic game instead of Eggman (who appears by proxy of King Shahryar, but isn't the villain at all).
• Walking Shirtless Scene: Wears pants and a cape but no shirt.
• We Can Rule Together: Offers this to Shahra.
• You Have Outlived Your Usefulness: Tries to sacrifice Sonic after he brings him the Secret Rings to gain control of them. Get's done in by Sonic pulling this on him by destroying the lamp (and him) after using up all 3 wishes.

King Arthur

Debut: Sonic and the Black Knight

Voiced by: Hidekatsu Shibata (Japanese), Gavin Hammon (English)

The primary antagonist of Sonic and the Black Knight, who was supposed to be the benevolent ruler of the world of Camelot, but became corrupted, ruling the kingdom with an iron fist.

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• Adaptational Villainy: By the time Sonic arrives on the scene, King Arthur has become corrupted with power and has taken to terrorizing the land that he's sworn to protect. Subverted later when it's revealed that he is not the true King Arthur, Sonic is.
• A.I. Is a Crapshoot: He was created by Merlin to give the kingdom a benevolent ruler. Come the current day, he is oppressing the populace by raising monsters from the Underworld.
• Artificial Human: According to Merlina, he was an "illusion" (heavily implied to be a magical creation) made by Merlin in order to give the kingdom a savior.
• BFS: His sword, the Deathcalibur, which is almost as big as he is and is actually produced by the Scabbard of Excalibur itself.
• Black Knight: He is the titular Black Knight, though his armor is actually a dark gold.
• Composite Character: In the myths and their retellings, Black Knight has been several people, but Arthur himself has become him by the time the game starts.
• The Corruption: He was corrupted by the Scabbard of Excalibur.
• Disc-One Final Boss: Despite being built up as the big bad of the story and the titular antagonist of the game, he's not the Final Boss or even the main villain. That honor actually goes to Merlina.
• Evil Laugh: Can do this in the multiplayer mode.
• Face–Heel Turn: Discussed. King Arthur is mentioned to be a once just ruler before being corrupted by the power of Excalibur's scabbard.
• Flight: His horse can fly.
• "Get Back Here!" Boss: How his boss fight plays out. Ironically, he says to Sonic, "It looks like there's only one thing you're good at: Running away."
• Glowing Eyes of Doom: It's the only thing visible underneath that armor.
• No Body Left Behind: Vanishes like one of the Knights of the Underworld upon death, which leaves Sonic shocked.
• Not Worth Killing: After their first fight, which ends with the reveal that King Arthur cannot be defeated due to the scabbard's power, King Arthur deems Sonic "a fool of a knight not even worth slaying", refuses to elaborate further, and leaves.
• One-Winged Angel: During the prelude to the Final Battle, Merlina summons a monstrous, spectral version of King Arthur as a Guardian Entity to knock Sonic around some. When she tires of Sonic's increasingly futile resistance, she causes it to evolve further and attack Sonic with a dozen or more swords at once.
• Playing with Fire: He'll unleash balls of crimson energy that heavily resemble flames at Sonic. Deflecting them back at him will both fill the Soul Gauge and slow him down.
• Shock and Awe: During their second battle, he unleashes pink electrical arcs from his sword to catch Sonic off-guard. He performs a similar move as an AOE in multiplayer.
• This Cannot Be!: When Sonic nullifies the scabbard's power and leaves him vulnerable, he's left in disbelief and says "How can this be!?" before Sonic cuts him down.
• Tin Tyrant: Decked out from head to toe in so much armor it's amazing he's even able to stand up properly.
• With Great Power Comes Great Insanity: It's stated that King Arthur turned evil due to Excalibur's scabbard of immortality.

Merlina (Unmarked Sonic and the Black Knight Spoilers)

^{Click here to see Merlina as the Dark Queen}

"You could never understand my sorrow at seeing the ruinous future of this kingdom."

Debut: Sonic and the Black Knight

Voiced by: Mamiko Noto (Japanese), Melissa Hutchison (English)

A young sorceress from the world of ancient Camelot. She summons Sonic to her world to help stop King Arthur from terrorizing her kingdom. However, once the king is stopped, she reveals her true colors, having manipulated Sonic into obtaining the scabbard and wishing to put Camelot in an unending stasis with the power of its dark magic.

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• Aesop Amnesia: Despite learning her lesson in her game of origin, when she appears in Sonic Runners, it's in the guise of her villainous identity, the Dark Queen.
• Anti-Villain: What separates her from the other Sonic villains is that she is driven by purely altruistic motives. Merlina wants to make her world never end, by making it never change, so it won't end in warfare. Unfortunately she goes about doing this by using the power of Arthur's scabbard, which comes from the Underworld.
• Batman Gambit: Her plan was to trick Sonic into defeating King Arthur so she could take the scabbard of Excalibur and use its immortality-granting powers to make the kingdom everlasting.
• Beauty Equals Goodness: Zig-zagged in terms of "goodness": she really does want to save the kingdom from Arthur's tyranny, but also wants to use the Scabbard to make her world eternal and becomes the Final Boss. Played straight in terms of "beauty": she's drop dead gorgeous in both forms.
• Beauty Is Bad: Zig-zagged in terms of being "bad": she's by far the least "evil" of the Big Bad characters in the franchise and her motives are purely altruistic and understandable. Again, played completely straight in regard to being beautiful - even her new appearance as the Dark Queen does nothing to diminish her looks.
• Big Bad: Of Sonic and the Black Knight, where she manipulates the events of the game to usurp King Arthur, obtain his scabbard, and turn the Kingdom of Camelot into an eternal world that goes on forever. She even calls upon Sonic to do the dirty work and obtain what she needs.
• Big Bad Friend: Merlina seems to be Sonic's ally early on, but is using him for her own means.
• The Bus Came Back: The Dark Queen returns five years after her debut in the non-canon Sonic Runners.
• The Chessmaster: Masterminded the plot of Sonic and the Black Knight, with none of the Knights or Sonic any wiser to her schemes until she grabs hold of the Scabbard.
• Complete Immortality: She uses the Scabbard of Excalibur to grant this to her kingdom.
• Curb-Stomp Battle: This is the nicest way you can describe her first fight with Sonic. No matter how hard he tries, he can't land a hit on her thanks to her barrier. Then she snaps Caliburn in half and basically beats the everloving snot out of him. If Sonic had not gotten his Heroic Second Wind, she would've killed him.
• Dark Action Girl: Zig-zagged, as she's the main antagonist and the Final Boss, but is an Anti Villainess.
• Defeat Means Friendship: Sonic manages to make her do a Heel–Face Turn by telling her to live each day to the fullest and cherish the time she and her kingdom have left.
• Deflector Shields: Can project an impenetrable magic barrier that's capable of repelling Sonic and Caliburn with zero effort.
• Dual Wielding: Uses twin swords and twin Magic Staffs as the Dark Queen.
• Easily Forgiven: By Sonic, who was manipulated by her and nearly killed by her, he still encourages her to let go of her fears and live for the present.
• Eerie Pale-Skinned Brunette: She turns into one as the Dark Queen, gaining an Undeathly Pallor and her hair turning very dark purple.
• Energy Ball: Utilizes these in her fight with Sonic.
• Ermine Cape Effect: Once she becomes the Dark Queen she dons a huge Pimped-Out Dress adorned with huge white feathers and lets her hair down, giving it the appearance of a thick cape. She wears it while fighting Sonic and it does nothing to impede her. Downplayed as she's a sorceress and doesn't need to exert herself physically to do battle.
• Evil Brit: For a definition of "evil". Also, she has a slight British accent. Bonus points for being part of a British legend.
• Evil Costume Switch: She dons a more ornate, darker Pimped-Out Dress when she absorbs the power of the scabbard and becomes the Dark Queen.
• Evil Redhead: Played With. She's a red-haired witch who's the Big Bad of the game, but when she reveals her true colors her hair turns purple.
• Evil Sorceror: A Straw Nihilist who intends to save her world by ensuring it never changes.
• Exposition Fairy: For the beginning of the game, until Caliburn takes over.
• Eyes Do Not Belong There: Has a red eye on her chest as the Dark Queen.
• Females Are More Innocent: One of the few female villains in a Sonic game that is the Big Bad of her game, and is an Anti Villainess Well-Intentioned Extremist. Compare her to the other male villains on this page.^note With the exception of Void.
• Final Boss: Of Sonic and the Black Knight and, by extension, the Storybook Series.
• Final Boss, New Dimension: The fight with her takes place in a black void, much like the battle with Alf-Layla-Wa-Layla in Sonic and the Secret Rings.
• Freudian Excuse Is No Excuse: Even if her motivation for making Camelot eternal is her despair towards the end of the world, Sonic doesn't hesitate to stand against her— her method of making Camelot eternal involves plunging it into the darkness of the Underworld, and she's ultimately putting her own feelings above everyone else's.
  Dark Queen: You could never understand my sorrow at seeing the ruinous future of this kingdom.
  Sonic: Good, 'cause I don't ever want to know such one-sided sadness.
  Caliburn/Excalibur: Foolish wizard. You’re willing to sacrifice countless others just to escape your own sorrow?
• Fur and Loathing: Her villainous Pimped-Out Dress as the Dark Queen is covered in white feathers.
• Hoist by His Own Petard: She's the one who summoned Sonic in the first place and he causes the failure of her plans. Though since she needed Sonic's help to get the scabbard at all, it's not as though she had much choice in the matter.
• Identical Stranger: To Shahra from Sonic and the Secret Rings, suggesting they are parallel universe versions of one another, in a similar vein to many other characters in the Storybook Series.
• Image Song: "With Me", the theme that plays during her final boss fight. It specifically outlines Merlina embracing her nihilistic, evil outlook in pursuit of her goal, given how the morbid, sinister nature of the lyrics give it the interpretation of being sung primarily from Merlina's point of view. "With Me" can be considered her leitmotif as well, where riffs of the song play in cutscenes featuring her when she explains her motives or nihilistic outlook on life (e.g. "Theme of Merlina").
• Immortality Immorality: While she's a Well-Intentioned Extremist, she's using Black Magic to spread darkness in order to make Camelot eternal. Sonic makes the argument that a world that goes on forever is no good, while Caliburn asks her if she truly believes that such a world would even function properly.
• It's All About Me: While her motivations are sympathetic, the game ultimately still portrays her as a selfish character: her personal despair towards Camelot's destruction is what leads her to wish for it to be eternal rather than anything altruistic such as protecting its inhabitants, especially considering how said inhabitants would be subjected to an eternity of the Underworld's darkness. Sonic and Caliburn even call her out on this.
• Law of Chromatic Superiority: She trades in her pink-red outfit for a purple, gold, and green ensemble as the Dark Queen, signifying her increase in power and her new title.
• Legacy Character: She can tap into the power of Excalibur's scabbard to become a ghostly version of King Arthur, effectively making her the second "Black Knight" of the story.
• Living Shadow: Has one that can manifest in the shape of King Arthur which she can control at will. She can also fuse with it to go One-Winged Angel.
• Magic Staff: She's always seen carrying around a large magical staff.
• Medieval Stasis: Quite literally; her ultimate goal is to create a never-ending Arthurian world using the power of the Underworld to keep everyone alive and unchanging for all time.
• Multi-Armed and Dangerous: Her shadow can grow multiple arms to attack enemies.
• Necromancy: Played With. While necromancy isn't explicitly stated, Arthur's scabbard is explicitly said to wield the powers of the Underworld and the monsters it makes appear are humanoid abominations that crumble into dust when killed. Merlina's spell to give the world Complete Immortality was going to merge Camelot and the surrounding kingdom with the Underworld, suggesting some kind of undeath was in play.
• No-Holds-Barred Beatdown: Absolutely thrashes Sonic to within an inch of his life when he tries to attack her in the cutscene before the Final Boss fight, even effortlessly breaking Caliburn, killing him.
• Purple Is Powerful: Her Evil Costume Switch involves her hair and accents on her dress turning purple, and she's powerful enough to give Sonic a Curb-Stomp Battle until he wields Excalibur.
• Red/Green Contrast: She starts out with a primarily red color palette, which turns green and purple after The Reveal of her true intentions and her Evil Costume Switch.
• Secondary Color Nemesis: When she reveals her true alignment she goes from a primarily red/pink color palette to a green and purple ensemble with some gold thrown in, contrasting Sonic's Blue Is Heroic.
• Sorcerous Overlord: As the Dark Queen she becomes one over Arthur's kingdom.
• The Stoic: Always maintains a calm demeanor, save in the final moments between Excalibur's finishing blow and the destruction of her One-Winged Angel form. Justified in that, in her view, she's doing what needs to be done to save her kingdom. Her emotional investment in this isn't much.
• Straw Nihilist: She's a more sympathetic example than most. Merlina loves her world, but upon discovering that her world is doomed to end in ruin and warfare, became depressed and occasionally wondered why they should accomplish anything. Her solution was to try to find a way to make her world eternal.
  Merlina: Why do flowers bloom knowing they are destined to wither? Their time of beauty is so short-lived.
• Supernatural Gold Eyes: As the Dark Queen.
• Tough Leader Façade: Merlina is outwardly a dignified, albeit melancholic woman with a stoic attitude. In reality, she is deeply troubled and broken inside, resorting to extreme measures to save her kingdom from its inevitable destruction.
• Tragic Villain: She has fallen into despair knowing how her kingdom and its people (including Arthur and the Round Table) are doomed to a horrific end. Her actions are to save it through the power of the Scabbard, creating an eternal world.
• Turns Red: More like turns black. As her health dwindles, her color scheme turns from blue to black. Her Battle Aura becomes red, however.
• Undeathly Pallor: As the Dark Queen, when she begins using Arthur's scabbard and its underworldly powers to freeze the land in stasis.
• The Unfettered: Merlina's singular goal is to save her kingdom. To that end, she will free it from the Black Knight's monsters and the Knight himself... But will also plunge it into the Underworld herself and flood it with monsters to give it complete immortality. She lets her previously-braided hair down as a visual indicator of her removing any chains of morality once her true goals are revealed, and while she speaks with an anguished, sorrowful tone at having to resort to her methods, she is unflinching in doing what she thinks must be done.
• Villain of the Week: A rare case where a new villain appears in place of Eggman, with the latter being completely absent from the game.
• Villain Song: With Me, the final boss theme.
• Walking Spoiler: She's really the Big Bad throughout the entire game, despite her benevolent actions at first.
• Well-Intentioned Extremist: Merlina wants to save her world... by stopping it from ever changing using the power of the Underworld.
• Woobie, Destroyer of Worlds: Merlina is a broken girl who has seen the end of Camelot and is utterly crushed and devastated. It's the reason she wanted to create an eternal world to begin with.
  Merlina: My sorrow runs deeper than the depths of the Underworld.

Babylon Rogues

Tropes Relating to the Group In General

Debut: Sonic Riders

A group of extreme gear riding birds from the Sonic Riders series of games. Each member functions as The Rival to a member of "Team Sonic". The Bablylon rogues are descended from the ancient Babylonian civilization. Consists of Jet the Hawk, who is obsessed with being the best at extreme gear riding; Wave the Swallow, a Wrench Wench that maintains their extreme gears; and Storm the Albatross, who acts as the Dumb Muscle.

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• Acrophobic Bird: Despite being birds, none of the Rogues seem to be capable of flying under their own power, relying on their extreme gear to do so.
• Amazing Technicolor Wildlife: Par for the course in a Sonic game, but special mention goes to Storm (who averts this and is colored exactly how a real albatross would be colored) and Wave (who actually justifies this trope by virtue of there being a real-life swallow with iridescent purple plumage).
• Anti-Villain: The group is most certainly a Wild Card group of thieves who are greedy and full of pride, but they're not out to actively hurt anyone or conquer the world, and are willing to team up with Team Sonic should the need call for it.
• Balance, Speed, Strength Trio: Wave would be the balanced one, Jet is known for his speed and Storm is the team's muscle.
• Big, Thin, Short Trio: Storm is the big, Wave is the thin, and Jet is the short.
• Bird People: All three are humanoid birds.
• Breaking Old Trends: Unlike other teams that are all first generation in the Sonic universe, the Babylon Rogues are a generational team, with the present incarnation being the latest in a long line.
• The Bully: All of them count to a certain degree, but Wave especially counts considering how she initially treats Tails.
• The Bus Came Back: After being absent since Free Riders, Wave makes a return in the non-canon Mario & Sonic at the Rio 2016 Olympic Games, and Storm also returns in the non-canon Sonic Forces: Speed Battle.
• Carpet of Virility: Jet and Storm both have white feathers on their chests, Storm much more so than Jet. Wave, being a female, lacks this and wears a shirt instead.
• Cast Herd: Like the Chaotix, they are rarely seen apart.
• Comic Trio: Jet is The Leader, of the headstrong variety. Storm is The Fool, blindly following Jet's orders, and Wave is the Only Sane Woman, viewing Jet as "unreliable", and often getting frustrated with his stubbornness and Storm's stupidity.
• Crippling Overspecialization: Part of what has more than likely contributed to their status as Demoted to Extra is that they're very talented thieves on their Extreme Gear, most of their capabilities revolving around that in some manner or another. While they all have some abilities not relating to that, it would take away a lot of their appeal and capabilities that initially got them fans.
• Demoted to Extra: They were the secondary stars of the Riders sub-series at first, but since there has not been a game in that series since 2010 with Sonic Free Riders, the group have more or less just been relegated to appearances in the IDW comics and non-canon spin-offs, primarily the Mario & Sonic series and not in a particularly prominent fashion either. Jet and Wave at least are playable in those games, albeit in a limited capacity, but Storm has only made his appearance in Sonic Forces: Speed Battle.
• Feather Fingers: Taken to the logical extreme — their wings are so hand-like that they barely even qualify as wings anymore. They can even wear gloves on them!
• Feathered Fiend: These anthropomorphic birds aren't exactly villainous, but they are greedy Jerkasses who will do anything for profit.
• Freudian Trio:
  • Id: Storm.
  • Superego: Wave.
  • Ego: (with Id traits) Jet.
• Everyone Has Standards: Are put off with Team Dark's apathy like everyone else.
• Generation Xerox: Jet's father was the leader of the previous generation of Babylon Rogues, and Wave's father was their mechanic.
• The Gimmick: They're all flightless birds who get around by Sky Surfing.
• Gravity Master: Jet's gravity control in Sonic Riders: Zero Gravity thanks to the Ark of the Cosmos.
• Greed: All of them, but Jet tends to stand out. He even snaps at Wave for interrupting a daydream he was having about money.
• Hot Paint Job: The Rogues have flame tattoos on their wrists. Wave's pants have a purple flame design.
• Informed Ability: Whether or not the Rogues can fly without their extreme Gear is... unclear. It's unlikely that they can, though, as they (apparently) don't have wings. Curiously, Wave is listed as a "Fly" character, like Tails, Rouge and Cream, so at the very least she must have some flight capabilities.
• Intergenerational Friendship: Jet is 14, while Wave and Storm are 18 and 19.
• It's All About Me: All of them, but especially Jet.
• Jerkasses: The Babylon Rogues are pretty full of pride and as such are often dismissive and cocky, brushing aside other people's opinions, putting them down, and butting heads with others pretty frequently. They even bicker among themselves a few times due to relatively minor grievances, showing that not even the rogues themselves are safe from this attitude.
• Lean and Mean: Jet and Wave are certainly on the skinner side and can occasionally be jerks.
• Mouthy Bird: They all have flat beaks they can use to fit in with the art style and make various facial expressions. Whether or not they have teeth depends on the artist; the games don't depict them with teeth, but the Archie comics do.
• Moveset Clone: Each Rogue has the exact same stats as their Team Sonic counterparts.
• Mr. Vice Guy: Greed and Pride define the group very well, as they're a bunch of thieves that think incredibly highly of themselves and treat everyone else rather poorly as a result.
• Nice, Mean, and In-Between: Despite Storm being pretty rude, it's clear that he defaults to being the nice one of the Babylon Rogues due to him being the most sympathetic one in the trio, whereas Jet is the mean one due to him being a trademark immature Jerkass. Wave sticks to the middle, being the in-between one, combining her snobbish personality and her sanity.
• Ninja Pirate Zombie Robot: As of Sonic Riders: Zero Gravity, they found out they were humanoid bird genies from space.
• Noble Demon: They may be a bunch of arrogant bullies, but they do have some redeeming qualities. Free Riders shows Jet refuses to cheat and would prefer to rely on his own skills to win, Wave does admit Tails isn't a bad inventor (to herself at least), and Storm has nothing but love and loyalty for the other two despite how bad they treat him. In fact, if it wasn't for their egos, they wouldn't be that bad at all.
• Nominal Hero: For a given value of "hero". While they are thieves and have a rivalry against Team Hero, they aren't outright evil and have had beef with Eggman as well.
• Non-Standard Character Design: It's especially noticeable on Jet's concept art; the Rogues all seem to have larger hands than most Sonic characters. This may be due to them being birds and thus, their hands double as wings.
• Not in This for Your Revolution: They may have gone against both Eggman and Sonic at different points in time, but they've made it very clear that they have no personal stakes in the overall conflict and they'll do what's best for them.
• Older Sidekick: Wave and Storm to Jet.
• Only in It for the Money: Played With. They're also in it for the sake of their egos, but their primary motivation is cash.
• Our Ancestors Are Superheroes: The Babylon Rogues are descendants of an ancient alien race known as the Babylonians who crash landed on Earth. It is they who created the technology from which Extreme Gear evolved.
• Pantsless Males, Fully-Dressed Females: In Sonic series fashion, Jet and Storm are both completely nude, save for their shoes and gloves, while Wave wears pants and a shirt.
• Pink Boy, Blue Girl: Wave has purple feathers while Jet has green feathers.
• The Psycho Rangers: They are counterparts to the Main Trio; they have even more parallels to them than Team Dark.
  • Sonic and Jet are both the leaders of their respective teams, and both are speedsters with huge egos. However, while Sonic is generally a nice guy despite his ego, Jet is usually a Jerkass. As a bonus, Jet's color scheme is the opposite of Sonic's (green with blue eyes as opposed to Sonic's blue with green eyes).
  • Knuckles and Storm are both the muscle of their respective teams. Both are easily angered, but while Knuckles is Super Gullible, Storm is genuinely Dumb Muscle, often having trouble doing things on his own and lacking in intelligence.
  • Tails and Wave are the mechanics experts to their groups. But while Tails is humble and caring, Wave is proud and critical, even to the point of being willing to cheat multiple times just to ensure a win.
• Replacement Flat Character: As Evil Counterpart Mirror Characters who rival Sonic, Tails, and Knuckles, the Babylon Rogues end up trying to fill a niche already filled by Team Dark, which consists entirely of characters who already fit that description—Shadow mirrors Sonic, and Rouge and Omega mix and match traits borrowed from Tails and Knuckles. That said, Shadow and Rouge weren't flat characters to begin with, so the Babylon Rogues have little to distinguish themselves except their lore and The Gimmick they use. This redundancy is especially apparent in Sonic Free Riders, where Shadow and Rouge appear with no goal except competing and defeating the other racers, making the Babylon Rogues all but redundant.
• The Rival: They fit this compared to Team Dark, as Jet, Storm and Wave are all rivals to Sonic, Knuckles and Tails respectively. However, after their debut game, the Wave and Storm seem to have a one sided rivalry with Tails and Knuckles, as it's really only their comments that imply they want to beat them, while the latter two don't really make comments on it. Jet keeps this role throughout the Sonic sub-series at least, going from dismissing him to actually viewing him as a proper rival, and Sonic being eager to see which of the two is better.
• Rivals Team Up: With Team Heroes in both story-driven games.
• Screw This, I'm Outta Here: They show a penchant to simply just leave whenever things don't go the way they expected, content to let Sonic and friends deal with whatever scheme is happening. At the very least, they will help out if they have no other option.
• Secondary Color Nemesis: Jet is green, Wave is purple, and Storm (while primarily achromatic) has big orange gloves.
• Shadow Archetype: To the protagonist trio as a whole.
  • Jet to Sonic. They both live a free life, but Jet is a self-absorbed, petty jerk, who only cares about winning.
  • Wave to Tails. They both tend to be the smart one of their group, but Wave completely lacks the humble attitude of Tails, and is very cruel and selfish.
  • Storm to Knuckles. They're both the strong ones of their group, are extremely loyal, somewhat hot-heads, and tend to be a bit shy around girls (which somewhat expose their tough image), but Storm is rather rude, insensitive, and obnoxious, and hangs with the wrong crowd.
• Sky Surfing: The bread and butter for all three of them. While Jet is the one who makes the most deal out of it, Wave seems to be the one who can do it the easiest, being the token Flight type of their trio. In Zero Gravity, her Babylon Standard Type-W is even capable of transforming into a body board-style Air Rider gear to allow her better control in the air.
• Small Name, Big Ego: Jet is too proud of his abilities with the Extreme Gear, and Wave is too sure of herself in her abilities as a mechanic. Storm doesn't seem to have the big ego, but he is prideful too in a bully sort of way.
• Smug Snake: Jet (and to some extent the other Rogues), in their more antagonistic bouts, are very overconfident jerks, despite their occasionally blundering nature.
• Tattooed Crook: They have visible flame tattoos around their forearms.
• Two Guys and a Girl: Jet and Storm are male, Wave is female.
• Villainous Friendship: Downplayed, it's hard to say they are friends at times, especially Wave and Storm who can get into arguments over little things and then refuse to talk to each other, but there does seem to be some level of care between them.
• Wild Card: They are neither good, nor evil, they are cocky douches that have worked with both Eggman and Sonic before at different points in time. In truth, their allegiance is to what benefits them most, though their main concern is profit, nothing like world domination or revenge.
• Wings Do Nothing: Despite being birds, they don't even have wings, unless their arms double as wings (kind of like Daffy Duck).
• With Friends Like These...: Downplayed. They can get along with each other just fine, with Jet and Wave even managing to show an equal level of respect to one another at times, but they just as easily can go behind each other's back, insult each other over minor misunderstandings and in general have problems listening to each other.

Jet the Hawk

"No way I'm gonna lose!"

Voiced by: Daisuke Kishio (Japanese); Jason Griffith (English, 2005-2010), Michael Yurchak (English, 2010-present)^{Additional VAs}Benjamin Bollen (French, 2013-present), Andrea De Nisco (Italian, 2013-present)

• Blow You Away: Jet can use his Combat Hand Fans to stir up wind currents to disorient other riders.
• Combat Hand Fan: Jet uses a pair of war fans called the Bashosen to attack other riders.
• Don't You Dare Pity Me!: Jet hates being pitied. He nearly gave up the key to the Babylonian Treasure (treasure he was certain would leave him rolling in dough) back to Sonic simply because Sonic gave it back despite being the one to get it back from Eggman.
• Dual Wielding: Jet's Paper Fans Of Doom when fully powered up.
• Enfant Terrible: Jet is only 14 years old, making him a year younger than Sonic, and the youngest member of his team.
• Everyone Has Standards: Well Jet does, anyways. Despite his arrogance and inability to accept a loss, Jet is genuinely above cheating and would much rather win fairly. Of course, he's willing to bend his morals if he feels what's on the line is worth it, though he'll angrily back out if his opponent tries to hand it to him anyways. He also has pretty humble feelings about his place as a thief, admitting he has no interest in advanced technology or world domination (at least until Wave tells him they could sell it for a lot of money).
• Fastest Thing Alive: What he desperately wants to be. He acknowledges that Sonic is faster than him on the ground, but maintains that the title doesn't apply when it comes to him with his Extreme Gear, and it shapes the rest of his and Sonic's rivalry.
• Foolish Sibling, Responsible Sibling: Due to the fact that Wave views Jet as an unreliable little brother, Jet and Wave follow this trope. Wave is the responsible to Jet's foolish while Jet is the foolish to Wave's responsible.
• Green and Mean: He has green feathers and is a prideful asshole.
• Hair-Trigger Temper: He has problem accept someone may be better than him, and is annoyed to be talked to like a spoiled child.
• Hourglass Plot: He initially started out as being superior to Sonic due being an expert at Extreme Gear and the latter being a rookie. However, this dynamic is flipped by the end of the first Riders game where Sonic proves to be the better racer and the next two games show Jet trying to catch up with and surpass Sonic.
• Jerk Jock: Jet mocks newer competitors, thinks his surfing skills make him superior to everyone else, and is an asshole winner, yet a Sore Loser at the same time. He never respects anyone unless he approves of them
• Jerk with a Heart of Gold: Jet is a thief, who has too much pride in his head to consider himself the "world' fastest" , but he is not heartless. Also, he decides to bust Sonic out when he was captured in Mario & Sonic at the Rio 2016 Olympic Games.
  • Jet doesn't mind going home empty-handed in Free Riders, because he had fun racing.
  Wave: Ugh, what a rip! Going home empty-handed is going to kill our rep as rogues.
  Storm: I'm real sorry about this, boss.
  Jet: Why? I actually had a pretty good time, at the end of the day!
• Only Sane Man: He will take this role when Wave is too busy arguing and sniping at Storm, often angrily yelling at them to get it together.
• Promoted to Playable: After being a boss in the past few installments, Jet finally becomes a playable character in Mario & Sonic at the Rio 2016 Olympic Games with Wave coming along for the ride.
• Power Crutch: Jet can only be considered Sonic's rival because of Extreme Gear. Without it, he's probably nowhere near as fast.
• Sore Loser: For someone who acts all high and mighty with a large superiority complex to make it worse, Jet can't stand losing.
• Speed Demon: Jet is a master of Extreme Gear and is egotistical and arrogant about his skills in a much more mean-spirited way than Sonic. He believes that it is he, not Sonic, who is the Fastest Thing Alive and frequently challenges the blue hedgehog to prove it.
• Strong Family Resemblance: In his office, Jet has a picture of a hawk who looks very much like him, except wearing a cape and admiral's hat. Said hawk is likely Jet's father, who is said to be the leader of the previous generation of Babylon Rogues.
• Unsportsmanlike Gloating: Funnily enough, not only is Jet a Sore Loser, he's a sore winner as well, gloating and being dismissive of his fellow racers when he beats them.
• Vocal Evolution: Jason Griffith's Jet in Zero Gravity is a lot deeper than in the first game.
• Worthy Opponent: Jet becomes yet another rival to Sonic, and the Hawk considers him a worthy challenge that he wants to beat in a race without interference

Wave the Swallow

"Unless I take charge, nothing ever gets done here!"

Voiced by: Chie Nakamura (Japanese), Erica Schroeder (English, 2005-2010), Kate Higgins (English, 2010-present)

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• Foolish Sibling, Responsible Sibling: Due to the fact that Wave views Jet as an unreliable little brother, Jet and Wave follow this trope. Wave is the responsible to Jet's foolish while Jet is the foolish to Wave's responsible.
• Gadgeteer Genius: She maintains and improves the hoverboards the Rogues use.
• Hair-Trigger Temper: She can get upset rather easily, not hesitating to insult someone even over what could be an entirely misinterpreted comment.
• Inferiority Superiority Complex: Implied with Wave in "Sonic Riders." In the story mode for the Babylon Rogues, while she insults Tails' hover board, she actually thinks (in her mind) that it wasn't so bad (also, in her bio, it states that she usually doesn't like admitting that someone has better talent than her).
• Insufferable Genius: Wave takes her pride as the team mechanic seriously and refuses to accept any losses might be the result of her work.
• Like Brother and Sister: According to her profile on Sonic Channel, Wave views Jet as an "unreliable younger brother", but respects his role as leader. If it wasn't for the manual, a player may confuse her and Storm for Jet's siblings.
• More Deadly Than the Male: While not necessarily "evil", Wave is the only member of the team who is ruthless enough to cheat. She was the one who booby-trapped Sonic's gear in the original Riders, after all. In Team Babylon's story in Free Riders, it's strongly implied that Wave tampered with Sonic's gear to guarantee that Jet would win, despite Jet telling her not to do so. Feeling that his win was illegitimate, Jet demands a rematch with Sonic, so they can race fair and square.
• Motor Mouth: Wave pet talks to Jet are long, ridiculous chats of responsibility, and is implied they are rather routinely. When Wave starts to talk, Jet takes the time to flee the scene just to be show off to Sonic.
• Mr. Fixit: Wave does all of the maintenance of the Extreme Gear.
• Noblewoman's Laugh: Take a good look at Wave's victory animation when you finish a race on a standard board in Sonic Riders: Zero Gravity.
• Only Sane Woman: Wave is this in the group, since she's the one who constantly reminds Jet and Storm of their responsibilities. Granted, she can fall right into their antics too, especially with her arguments with Storm.
• Passionate Sports Girl: Similar to Jet she's a dedicated racer and thus mainly appears in the sports-oriented titles.
• The Smart Girl: She is the mechanic in charge of the Extreme Gears, and the most down to earth of the three members.
• The Smurfette Principle: She’s the only girl on the team.
• Surrounded by Idiots: Wave has this perception sometimes. It doesn't help that in her official bio, she strongly hates thick-headed people, which explains her inhospitable attitude towards Storm.
• Team Mom: Much to Jet's chagrin.
• Teen Genius: Wave is a great mechanic.
• Tomboy and Girly Girl: The inventor tomboy to Rouge's diamond obsessed girly girl.
• Tomboy with a Girly Streak: Wave is a tech genius with brash personality, but she also wears makeup and has very feminine pink-purple-lavender color scheme.
• Throw Down the Bomblet: Wave can toss sticks of dynamite at other riders.
• Women Are Wiser: Wave is the only female member of the Babylon Rogues and the most mature of the group.
• Wrench Wench: She even uses a giant wrench to attack.

Storm the Albatross

"I'll make sure to pay you back for this!"

Voiced by: Kenji Nomura (Japanese), Dan Green (English, 2005-2010), Travis Willingham (English, 2010-present)

• Badass Biker: In Zero Gravity, Storm's Babylon Standard Type-S can transform into an air-bike for extra power and durability. As a Power Type character, he also has a natural affinity for the heavier Bike and Wheel type gears.
• Bare-Fisted Monk: Unlike Jet and Wave, Storm doesn't use a weapon, preferring to pummel enemies with his fists instead.
• Black Eyes of Crazy: Sorta. For a while, it was believed that Storm had black sclera due to his artwork◊ from the first game◊ clearly depicting him with such. Turns out, the "sclera" are markings around his normal blue eyes.
• Bruiser with a Soft Center: Granted, Storm's tough guy image fades rather quickly under the right circumstances. He acts flustered around girls and is shown to feel bad whenever he hurts someone he wasn't aiming for.
• The Brute: The powerhouse of the Babylon Rogues.
• Captain Crash: Storm has trouble landing with his gear. Interesting, this may be a reference to real life albatrosses, who really do have trouble landing, due to how massive their wings are compared to their comparatively compact bodies.
• Crouching Moron, Hidden Badass: Storm may be a bit thick and have all the grace of a train wreck, but when he's given a mission, he usually gets great results.
• Dark Is Evil: To an extent; he averts the Amazing Technicolor Wildlife trope both Jet and Wave by being grey just like an actual albatross, and is clearly on the Rogues' side. However, he's clearly a Fat Idiot who is blindly following Jet and Wave who is actually quite kind despite his rudeness.
• Determinator: Storm. When Amy ended up grabbing the Arc of the Cosmos that Jet was after, he ended up chasing Amy all the way from Meteor Tech to Aquatic Capitol. It was only after Amy knocked him on his ass that he calmed down enough to figure out where he was and once he got what he was after, he was gone in a flash to bring it back to Jet.
• Dumb Muscle: Storm is strong, but not really as bright as Jet, let alone Wave.
• Fat Idiot: He's the biggest and oldest member of the Rogues, but has a Simpleton Voice and is clearly the dumbest, which leads to him getting a lot of flak from his allies. Especially from Wave.
• The Friend Nobody Likes: Storm often gets this treatment from Jet and Wave due to his daftness.
• Gameplay and Story Segregation: Storm is portrayed as being excessively clumsy and the worst of the three at handling extreme Gears. Within gameplay however, he can be just as nimble and graceful on a gear as anyone else.
• Informed Species: Storm looks more like an owl than an albatross.
• Insufferable Imbecile: He is slow on the uptake and can be just as — if not more than — rude and obnoxious as Jet and Wave.
• The Klutz: Which might be a reference to real albatrosses — their wings are simply so huge compared to their compact bodies and short stubby legs that it inevitably leads to some rough landings.
• Manchild: At 19, Storm is the oldest of the three, yet he's also the most simple-minded and immature.
• Mighty Glacier: Really strong but quite slow.
• Shrinking Violet: Storm gets very nervous around most girls.
• Simpleton Voice: Storm talks in a low-pitched, funny-sounding voice to match his dumb personality.
• Speech Impediment: Storm stutters when he's flustered.
• Super-Strength: Storm in spades, capable of punching out cars and trains along the track, and stunning other riders with a clap of his hands.
• Undying Loyalty: Storm is extremely loyal to Jet, and always follows his orders without question. His official profile even lists Jet as one of his favorite things, next to treasure.
• Verbal Tic: Storm's "-waina" in the Japanese version.
• Weak-Willed: He's actually pretty subservient to Jet, wanting nothing other than follow his lead even with the poor treatment he's given. He also turns out to be this way to Amy, who simply chews him out once and causes him to act as her guide without so much as a word of protest.
• With Catlike Tread: In the first Riders, Jet assigns Storm to espionage duty at one of Eggman's factories in order to dig up some dirt on Eggman. The following race involves Storm needing to outrun Eggman's security robots, destroying everything in his wake.

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