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* NiceJobBreakingItHero: While he couldn't've known at the time, Shadow [[spoiler:beating Infinite up and calling him worthless]] sparks [[spoiler:Infinite giving himself the powers of the Phantom Ruby,]] and ''that'' leads to [[spoiler:Sonic being defeated and Eggman taking over the world]]. Cue ''VideoGame/SonicForces''. [[JustifiedTrope Even then, however,]] [[spoiler:[[KickTheSonOfABitch Infinite and his group of mercenaries were already working under Eggman anyway]]]].
to:
* NiceJobBreakingItHero: While he couldn't've known at the time, Shadow [[spoiler:beating Infinite up and calling him worthless]] sparks [[spoiler:Infinite giving himself the powers of the Phantom Ruby,]] and ''that'' leads to [[spoiler:Sonic being defeated and Eggman taking over the world]]. Cue ''VideoGame/SonicForces''. [[JustifiedTrope Even then, however,]] [[spoiler:[[KickTheSonOfABitch Infinite [[spoiler:Infinite and his group of mercenaries were already working under Eggman anyway]]]].anyway]].
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* ShockAndAwe. His Chaos Blast, in which he either makes an [[SphereOfDestruction explosion of Chaos Energy]] from his body [[labelnote:* ]]As seen in ''VideoGame/SonicBattle'', ''VideoGame/ShadowTheHedgehog'', ''VideoGame/SonicTheHedgehog2006'', and ''[[VideoGame/SonicStorybookSeries Sonic and the Black Knight]]''[[/labelnote]], or shoots out a concentrated version through his hands [[labelnote:* ]]as seen in ''Sonic Battle''[[/labelnote]].
to:
* ShockAndAwe. His Chaos Blast, in which he either makes an [[SphereOfDestruction explosion of Chaos Energy]] from his body [[labelnote:* ]]As seen in ''VideoGame/SonicBattle'', ''VideoGame/ShadowTheHedgehog'', ''VideoGame/SonicTheHedgehog2006'', and ''[[VideoGame/SonicStorybookSeries Sonic and the Black Knight]]''[[/labelnote]], ''VideoGame/SonicAndTheBlackKnight''[[/labelnote]], or shoots out a concentrated version through his hands [[labelnote:* ]]as seen in ''Sonic Battle''[[/labelnote]].
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-->'''Black Doom:''' You still don't understand, do you? The future we offer is the only option for these humans.
-->'''Shadow:''' I've heard enough! You're boring me to death, Black Doom! '''You're going down!'''
-->'''Shadow:''' I've heard enough! You're boring me to death, Black Doom! '''You're going down!'''
to:
-->'''Black Doom:''' You still don't understand, do you? The future we offer is the only option for these humans.
-->'''Shadow:'''humans.\\
'''Shadow:''' I've heard enough! You're boring me to death, Black Doom! '''You're going down!'''
-->'''Shadow:'''
'''Shadow:''' I've heard enough! You're boring me to death, Black Doom! '''You're going down!'''
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* WouldHurtAChild: Simply put, there's no one he won't beat up. [[WouldHitAGirl Gender]] or [[WouldHarmAChild age]] is no deterrent. If you're the target or a hindrance to his goals, then you're just as eligible for a beatdown as the villains.
to:
* WouldHurtAChild: Simply put, there's no one he won't beat up. [[WouldHitAGirl Gender]] or [[WouldHarmAChild age]] is no deterrent. If you're the target or a hindrance to his goals, then you're just as eligible for a beatdown as the villains.villains.
----
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Per TRS.
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* BadassBaritone: With the exception of David Humphrey and Creator/KirkThornton, Shadow's voice tends to be very low and booming.
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* GrumpyBear: Even if he's put his past behind him and moved on to better things, there's no way Shadow will ever cheer up. Even on a good day.
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* MulticoloredHair: He has black fur with red stripes.
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* NotSoDifferent:
** Him and Sonic, particularly in ''VideoGame/SonicAdventure2''. While Shadow is more focused and serious, him and Sonic share a lot of similarities, namely their SuperSpeed, [[LeeroyJenkins impatience]], [[SmugSuper an extremely high opinion of themselves]], are devoid of showing or talking about their own feelings, [[ScrewTheRulesImDoingWhatsRight and a strong sense of doing what they feel is right.]] In the aforementioned game, the two spend the entirety of it accusing the other of being the "faker".
** Also to Silver to a lesser extent. Although Shadow is way smarter than Silver and is far more comfortable with being alone, he shares a few similarities to him. They're both determined in doing what they believe is right and are ruthlessly focused, doing whatever it takes to get things done. They also both act as rivals to Sonic and are some of the few to beat him in battle, have white chest fur, and a DarkAndTroubledPast. Both also like to mock their opponents in combat.
** Him and Sonic, particularly in ''VideoGame/SonicAdventure2''. While Shadow is more focused and serious, him and Sonic share a lot of similarities, namely their SuperSpeed, [[LeeroyJenkins impatience]], [[SmugSuper an extremely high opinion of themselves]], are devoid of showing or talking about their own feelings, [[ScrewTheRulesImDoingWhatsRight and a strong sense of doing what they feel is right.]] In the aforementioned game, the two spend the entirety of it accusing the other of being the "faker".
** Also to Silver to a lesser extent. Although Shadow is way smarter than Silver and is far more comfortable with being alone, he shares a few similarities to him. They're both determined in doing what they believe is right and are ruthlessly focused, doing whatever it takes to get things done. They also both act as rivals to Sonic and are some of the few to beat him in battle, have white chest fur, and a DarkAndTroubledPast. Both also like to mock their opponents in combat.
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!!Shadow the Hedgehog
[[quoteright:250:https://static.tvtropes.org/pmwiki/pub/images/shadowthehedgehog.png]]
-->''"If the world chooses to become my enemy, I will fight like I always have."''
->'''Debut''': ''VideoGame/SonicAdventure2''
!!!!!!Voiced by Creator/KojiYusa (Japanese), David Humphrey (English, 2001-2004), Creator/JasonGriffith (English, 2005-2010), Creator/KirkThornton (English, 2010-present)
-->An artificially created hedgehog made by the late professor Gerald Robotnik. 50 years before the start of the series, Gerald made a deal with an alien named Black Doom that he'd create the ultimate weapon for Doom in exchange for his immortal blood to cure his ailing granddaughter, Maria. G.U.N. caught wind of this and had the entire project shut down, and Shadow was sealed away until Dr. Eggman released him during the events of ''VideoGame/SonicAdventure2''. Over the course of the game, Shadow reveals he was carrying out Gerald's will and worked to destroy the planet as revenge for Maria's death. However, Amy manages to convince Shadow to help, and he remembers Maria's wish to protect humanity. He and Sonic team up to destroy his own prototype, and he apparently dies in the effort. He survives and eventually confronts Black Doom himself, and finally puts his past behind him and walks his own path.
-->Shadow is a very straightforward individual; he's aloof, taciturn, and ambitious. Because of his attitude, he is extremely hard to get along with and has a very independent nature, preferring to [[IWorkAlone work on his own]] more often than not. While he's not ruthless, he is extremely pragmatic and will handle any situation in his own way, regardless if anyone likes it or not.
* TheAce: One of the prominently best examples in the series. Even outstripping Sonic in fighting versatility.
* AccidentalPervert: There are one too many moments in ''VideoGame/SonicTheHedgehog2006'' where Rouge is explaining something to Shadow and his gaze seemingly lowers at her bountiful bosom, which is often broken when Rouge is done talking and Shadow briefly shakes his head to focus. This may be more due to wonky eye or model animations than an intentional peek, however.
* AboveGoodAndEvil: When it comes to his goals, he will achieve them at all costs.
* TheAgeless: Most likely due to the genetic material contributed to Project Shadow by his biological "father," [[spoiler:Black Doom]]. The reason behind this was that Shadow's creator, Professor Gerald Robotnik, wanted to study immortality and use the fruits of his research to find a cure for his granddaughter (and Shadow's surrogate sister) Maria, as she was terminally ill and suffering from a fatal disease known as Neuro-Immune Deficiency Syndrome. The only thing that shows ages are his shoes, with the soles' paint flaking off in most 3D artworks of Shadow.
* AllegedLookalikes: It's often stated he looks like Sonic, but he really doesn't,[[note]]his [[https://i.redd.it/iltr6motpraz.jpg older design]] when he was named "Terios" does look like Sonic[[/note]] at least not any more than any other hedgehog in the series (Amy or Silver) does.
* AloofAlly: He helps his teammates and even assists Sonic and his friends on occasion, but that doesn't exactly make him a big fan of team spirit.
* AlwaysSomeoneBetter:
** The main reason why Sonic considers him his rival. He was this to Sonic from his first appearance, seen getting the upper hand on Sonic the first time they fought. However, it is taken even further in ''VideoGame/ShadowTheHedgehog'', where Shadow beats Sonic without much effort (though the endings where he fights Sonic are non-canon). In more recent games, though, it's Sonic who tends to win. It generally comes down to who the player is controlling at the time.
** He's this to Infinite as well. As "Episode Shadow" of ''Sonic Forces'' showed, Infinite considered himself the "ultimate mercenary," until Shadow whipped Infinite's butt with hardly any effort, even making Infinite shake in fear of Shadow. [[spoiler:Not only did this fuel Infinite's InferioritySuperiorityComplex, but he vowed he'd never lose again, especially not to Shadow.]]
* ArrogantKungFuGuy:
** He views himself as superior to everyone in battle. This is especially shown in ''VideoGame/SonicAdventure2'' and ''VideoGame/SonicRivals''.
** It shows in the Pure Hero-Dark Path of his [[VideoGame/ShadowTheHedgehog self-titled game]] as well, where he ended up challenging Sonic as earned to being his rival, than boasted highly about his own strength after he defeated him, and even laughing about it.
** [[spoiler:This comes to bite him [[UnwittingInstigatorOfDoom and the rest of the world]] in ''VideoGame/SonicForces''; his physical and verbal beatdown of a pre-empowerment [[AxCrazy Infinite]] inflamed the latter's InferioritySuperiorityComplex and [[CreateYourOwnVillain sent him over the edge into sociopathic villainy]].]]
* AmnesiacHero: His fall to Earth at the end of ''VideoGame/SonicAdventure2'' caused him to lose his memory for a time.
* AntagonistInMourning: A rival variant, although he's a frenemy to Sonic and not an antagonist.
** In ''VideoGame/SonicAdventure2'', as he watches the escape capsule Sonic was trapped in explode, he commented about how he isn't a "fake" hedgehog after all in a slightly disappointed tone.
-->'''Shadow''': I guess he was just a regular hedgehog after all.
** In ''VideoGame/SonicTheHedgehog2006'', he closes his eyes in grief when Sonic [[spoiler:was killed by Mephiles in order to make Elise cry]].
* AntiAntichrist:
** Shadow was created by Black Doom so as to aid him in conquering Earth. However, Shadow eventually went against said destiny, destroyed Black Doom, and is now one of the chief defenders of the planet.
** This happens to Shadow a lot. Post-breakdown Professor Gerald reprogrammed Shadow's mind to carry out his plot to destroy Earth, but his [[TheLostLenore memories of Maria]] caused him to decide to save it instead. Later, Mephiles tried to convince Shadow to fill [[TheAntichrist the role of destroyer]] again, [[ShutUpHannibal but he'd finally learned his lesson and would have absolutely none of it.]]
* AntiHero: The most prolific example in the series. He is also known for achieving his goals by all means necessary, even it means playing the villain's game on occasions. But he does have moments of heroism, like [[HeroicSacrifice sacrificing himself to save the world]] and helping Silver realise that Mephiles has [[UnwittingPawn used him as a pawn]].
* AntiVillain: Shadow was driven by the loss of his surrogate sister in his debut appearance.
* ArchEnemy: To Black Doom in ''VideoGame/ShadowTheHedgehog'', Mephiles the Dark in ''VideoGame/SonicTheHedgehog2006'' [[spoiler: and temporarily Infinite in ''VideoGame/SonicForces'', although Infinite eventually turned his attention to Sonic and the Avatar]].
* [[ArtificialHuman Artificial Hedgehog]]: Created by Dr. Gerald Robotnik on the Space Colony ARK from the cells of Black Doom.
%% Please, do not put Badass. It is no longer a trope.
* BadassAndChildDuo: Was the badass to Maria's child, before she died.
* BadassArmfold: His usual pose.
* BadassBaritone: With the exception of David Humphrey and Creator/KirkThornton, Shadow's voice tends to be very low and booming.
* BadassBiker: In ''VideoGame/ShadowTheHedgehog'', ''VideoGame/SonicTheHedgehog2006'', and ''[[VideoGame/SegaSuperstars Sonic and Sega All-Stars Racing]]'', he can use the Dark Rider motorcycle.
* BadassBoast: He's very fond of these, to the point of being this Trope itself for the Sonic series:
** From ''VideoGame/SonicAdventure2'':
--->"My name is Shadow. I'm the world's Ultimate Life Form. There's no time for games, farewell!"
--->"Behold the true power I possess!"
--->"Before this is over, I'll show you the true power of ''Chaos Control''!"
** From ''VideoGame/ShadowTheHedgehog'':
--->"Behold, the ultimate power!"
--->"Death to all who oppose me!"
--->"I am Shadow the Hedgehog. I and only I, know what is best! No one can tell me what to do. This is who I am!"
--->"I am Shadow the Hedgehog. And now... I am the most powerful hedgehog in the world! The power of these Emeralds make me invincible [[ChewingTheScenery I am the ultimate hedgehog! THIS IS WHO I AM!]]"
--->"I am Shadow the Hedgehog. I've left the past behind me. No one can tell me what to do now! I will destroy you, Black Doom!"
** From ''VideoGame/SonicTheHedgehog2006'':
--->"If the world chooses to become my enemy, I will fight like I always have."
* BadassDriver: The trailers for ''VideoGame/ShadowTheHedgehog'' emphasized him driving his motorcycle, sometimes to the exclusion of any of his other abilities.
* BashBrothers: Often with Sonic, when the two put aside their differences. Sonic has at least come to respect Shadow's capabilities, even if he still mocks Shadow's attitude.
* BerserkButton: There are a few things that set him off.
** Getting in the way of his goals.
** Hurting his friends, namely Rouge, Omega, or Maria.
* BigBad: He's this in his debut in ''VideoGame/SonicAdventure2''. His manipulation of Eggman and his single-minded pursuit of helping to complete Gerald Robotnik's revenge drive the plot and result in an impending ColonyDrop. While he pulls a [[HeelFaceTurn Heel–Face Turn]] and helps clean up the mess, he's still the one who caused the whole thing to begin with.
* BigDamnHeroes: Has pulled this off on occasions.
** In ''Sonic Adventure 2'', he manages to teleport Rouge (and three of the Chaos emeralds, of course) off of Prison Island mere seconds before the whole island explodes.
** In ''Sonic 2006'', he was the second person to rescue Sonic from being killed by Silver (the first being Amy).
** In ''VideoGame/SonicForces'', [[spoiler:he rescues Sonic again, this time by defeating his clone who was going to charge into him.]]
* BreakoutCharacter: Got a StoryArc centered around him even though he was originally meant to die at the end of his debut appearance. He was even initially considered to have his own franchise.
* BrokenAce: He has skills and capabilities that rival Sonic's, and never has to worry about aging due to his immortality. All of this comes with deep-seated emotional scars as a result of his creation and subsequent loss of his surrogate family.
* BroodingBoyGentleGirl: Before she died, Shadow and Maria were a non-romantic version of this.
* BrutalHonesty: Has no problem breaking down the harsh truth.
* BullyingADragon:
** Often is the case towards anybody who tries to manipulate or persecute him. It never ends well for them.
** This happened to Infinite too, when he midly taunted Shadow and was very self assured that he could beat him, which resulted in Shadow beating him with no effort.
* ButForMeItWasTuesday: A perfect case happens in ''Sonic Forces: Episode Shadow''. For Shadow, it was just another day taking out Dr. Eggman's minions during an infiltration mission. [[spoiler: But for Infinite, it was his StartOfDarkness as Shadow killed the members of his mercenary group and gave him a CurbStompBattle that he took very personally. Afterwards, he was infused with the Phantom Ruby and became the tool necessary for Eggman to finally TakeOverTheWorld.]]
* ByronicHero: A family-friendly version, anyway. He's cynical, brooding, and spiteful, but he's also passionate, fiery, and does have a few close relationships, such as with Rouge and Omega.
* CanonImmigrant: The Inhibitor Rings (see PowerLimiter for more info), first seen in ''Anime/SonicX'', became canon as of ''VideoGame/SonicTheHedgehog2006''.
* CarpetOfVirility: Well, he's a hedgehog, and covered in fur, but his coloration invokes this.
* {{Catchphrase}}: He does have a few of these.
** "I'm the ultimate life form!"
** "I don't have time for games."
** "No one tells me what to do."
** "This is who I am!" - After every ending of '''Shadow the Hedgehog'''.
* ChallengeSeeker: Shadow never turns down a chance to test his abilities against potentially strong opponents like super dimensional beings, dragons, and of course Sonic himself.
* CharacterDevelopment:
** Shadow originally only cared about avenging the loss of his old friend and didn't even care if his own memories were fabricated into doing so. About two games later, he has accepted Maria's death and wishes to protect the world that she loved in honor of her memory and live his own life unshackled by past transgressions.
** He forms a genuine bond with Rouge (who he wanted nothing to do with in his debut), and Omega, even calling them his friends.
* TheChessmaster: Was clearly making use of Eggman's world-dominating ambition throughout ''VideoGame/SonicAdventure2'' in order to further his own goal (and Gerald's) in wiping out humanity in revenge for the murder of Maria Robotnik. The only reason he didn't succeed was that Amy convinced him to not go through with the plan. This also happened in the Pure Dark - Hero ending where he takes Black Doom's orders in order to get the chaos emeralds to remember his past, then later he ends up turning on him to take revenge against humanity on his own.
* TheCynic: Most notably in [[VideoGame/ShadowTheHedgehog his own game]]. Due to his past experiences, Shadow has a pretty pessimistic and dark worldview. He also has high disregard for Sonic's carefree nature, and is quite annoyed with his cheerful and unserious behaviour.
* CombatPragmatist: Despite his natural power, [[VideoGame/ShadowTheHedgehog his own game]] shows that he'll use guns, swords, or pretty much ANYTHING as a weapon if the situation calls for it.
* TheComicallySerious: His overly serious demeanor is sometimes played for laughs, particularly when juxtaposed with Sonic. Once in a while, he makes a few wits and one-liners.
* ConjoinedEyes: Like most ''Sonic'' characters.
* ContrivedCoincidence: His resemblance to Sonic is only a coincidence, seeing as he was created many years before Sonic was born.
* CoolBike: In ''[[VideoGame/SegaSuperstars Sonic & Sega All-Stars Racing]]'', his vehicle, the Dark Rider, is a motorcycle.
* CoolShades; Wears some in the ''VideoGame/SonicRiders'' series.
* CreateYourOwnVillain: Did this (accidentally) with [[spoiler:Infinite.]]
* CuteLittleFangs: Has these, though they're very hard to see.
* CutscenePowerToTheMax: In his ''[[VideoGame/SonicAdventure2 first ever scene]]'', he's seen using his air shoes to fly. Not once in any game has he been able to replicate this feat, with the closest exception being his [[VideoGame/ShadowTheHedgehog titular game]], where he'll temporarily hold himself in the air while shooting a sub-machine gun or variations.
* DaddyIssues: With Black Doom. In the majority of his self-titled game, Doom attempts to take advantage of Shadow's memory loss and use him to destroy the planet. After he learns the truth about his past, though, Shadow rebels against Black Doom and destroys him for good.
* DarkAndTroubledPast: In ''Sonic Adventure 2''. Blames himself for what happened to the Robotnik family and other citizens of Space Colony ARK and swears brutal justice for them. However, later on, his story becomes so convoluted that it pretty much overshadows this piece of his past.
* DarkerAndEdgier: Designed as such from the start, invoked in his own game.
* DarkIsEvil: At first in ''Sonic Adventure 2'' and ''Shadow the Hedgehog'' depending on the player's choice.
* DarkIsNotEvil: At the end of ''Sonic Adventure 2'' and games beyond.
* TheDarkSide: In ''Shadow'', he can draw on the power of evil and unleash his Chaos Blast.
* ADayInTheLimelight:
** At the height of his popularity, [[VideoGame/ShadowTheHedgehog he got his own game]].
** He also had his own campaign in ''VideoGame/SonicForces'' titled ''Episode Shadow'', set before the events of the main game.
* DeadpanSnarker: Has his moments, particularly in ''VideoGame/SonicAdventure2''. In general, though, he and Sonic snark at each other nearly every time they interact.
* DeathGlare:
** Gives off this a few times, such as [[https://68.media.tumblr.com/c5997e8bd1b50482cc107ed54b84e0cb/tumblr_inline_o4tb26XHgJ1r0rcm1_500.gif one]] in the intro of ''VideoGame/ShadowTheHedgehog'' and [[https://chiquitosilver.tumblr.com/post/163217652688/dont-look-at-me-like-that one]] in a fight against Sonic in ''VideoGame/SonicForces''. [[spoiler:The second example was given by a Phantom Ruby illusion rather than the real Shadow himself, however.]]
** He also gave one to Infinite when confronting him the first time, and again after beating him and telling him not to show himself around him again.
* DesperatelyLookingForAPurposeInLife: In ''VideoGame/SonicAdventure2'' back on the ARK, struggling with finding out why he was created. And then again in ''VideoGame/SonicHeroes'' and ''VideoGame/ShadowTheHedgehog'', due to his amnesia.
* {{Determinator}}: He will always fight on even if it's the world against him; also, in any goal he wants to carry out, he is near [[TheJuggernaut unstoppable.]]
* {{Deuteragonist}}: For a while after his debut, he had a major role in almost every main title alongside Sonic himself.
* DisproportionateRetribution: His initial appearance had him attempting to destroy the earth to avenge the murder of Maria Robotnik. He gets better.
* DivergentCharacterEvolution: In both ''Adventure 2'' and ''Heroes'', he's little more than a MovesetClone of Sonic. By ''Shadow the Hedgehog'', he finally gets to use his own Chaos abilities in-game, and eventually gets a completely different playstyle than anything Sonic has ever done in ''06''.
* TheDragon: To Black Doom in ''Shadow the Hedgehog'' Dark and Semi-Dark Story. Also this to Eggman, in ''Sonic Adventure 2'', the first ''Sonic Rivals'' game, and in ''VideoGame/SonicForces''.
* DragonWithAnAgenda: To Eggman in ''VideoGame/SonicAdventure2'', the agenda being annihilating the entire world as part of Professor Gerald's reprogramming before he was sealed.
* TheDreaded: Almost all media portrays Shadow like this, with him being possibly the most intimidating and fear-invoking character in the series. Sonic himself treats him more seriously than any rival and enemy he has fought and acknowledges him as a dangerous obstacle that he must take on without holding back.
* EnergyBall: He uses these in ''Sonic Battle'' and ''Sonic Riders''.
* EvilCounterpart: To Sonic, at first. Then CharacterDevelopment happened, and he became more of a [[AntiHero Neutral Counterpart]] to him; not evil, but not entirely good either.
* EvilLaugh: Does these in the Dark endings of his game.
* FakeMemories: Gerald altered Shadow's memories so that he could carry out Gerald's plan to take revenge on humanity. Fortunately, Shadow's actual memories of his promise to Maria shone through despite this.
* FantasticNuke: His Chaos Blast, which generates an explosion that destroys anything in the immediate vicinity.
* {{Flight}}: When using his [[CutscenePowerToTheMax air shoes]], Chaos Control, or if he's Super Shadow.
* FatalFlaw: Wrath. Shadow has a hard time letting go of his grudges, and his desire for vengeance often clouds his judgment. Also, he's far more cynical than Sonic, which leads to him taking more violent options, and also typically fights to the death, whereas Sonic would just disable his opponents.
* FireForgedFriends: Develops this with several characters.
** When Shadow first met Rouge, the two had quite a TeethClenchedTeamwork. Shadow was annoyed by Rouge's unserious and flirtatious personality and Rouge would often complain about Shadow's grumpy attitude and apathy. Over time, however, the two of them have grown more accepting of their differences and have become more caring about the well-being of one another.
** Was also this with Omega. They were hostile to each other when they first met; however, with time, they grew to care a lot about each others's well-being.
* {{Foil}}: He serves as one to Sonic. Whereas Sonic is the friendly, adventure-seeking hero, Shadow is the cold, deadly serious AntiHero. While they may be on the same side, often their methods of taking action can lead them to clash with one another.
* FourTemperamentEnsemble: Supine.
* ForgotAboutHisPowers: In ''VideoGame/SonicHeroes'' he doesn't assist Super Sonic in the final battle, despite having a [[SuperMode super form]] himself as the previous installment, ''VideoGame/SonicAdventure2'', demonstrated. {{Justified|Trope}} as he had amnesia at the time, but it doesn't explain why everyone else doesn't remind him of it.
* FragileSpeedster: When [[CompetitiveBalance balanced]], he's usually some combination of this and GlassCannon, generally offered as an alternative to Sonic. Notably in ''VideoGame/SonicBattle'', where he's very strong and very fast, but has the absolute worst healing skills of all the playable characters.
* FriendlyRivalry: Develops one with Sonic in later games. Despite his annoyance with the blue hedgehog, Shadow still acknowledges and respects Sonic as a WorthyOpponent, which Sonic finds mutual. He even showed up at Sonic's birthday party in ''Sonic Generations'', after fighting him.
* GeniusBruiser: Though not at Tails's level and mostly downplayed, Shadow occasionally displays some degree of scientific and technological know-how. In ''Sonic Adventure 2'', Shadow was also seen to be capable of being good at creating a master plan. But the "Bruiser" part usually overshadows the "Genius" part.
* GoldenSuperMode: A different, lighter shade of gold than Sonic's, but still gold of some description.
* GoodIsNotNice: His heart is in the right place, but his attitude could definitely use some work. His aloof and somewhat apathetic nature makes him come off as cold and uncaring towards people and his ego and violent tendencies also make it hard to get along with him.
* GoodIsNotSoft: Has no compunctions against lethal force when against an evil foe. The Black Arms learned the hard way that this also means no compunctions against genocide when dealing with exceptional evil. And if the heroes get in the way of his current goals, they're as much of a target as the villains.
* GrumpyBear: Even if he's put his past behind him and moved on to better things, there's no way Shadow will ever cheer up. Even on a good day.
* HatesSmallTalk: Shadow notably gets annoyed with friendly conversations or the like easily, especially when he's focused on a mission.
** Although he is more easy-going with Rouge than with most people, in ''Sonic '06'' when after Rouge asks if he wants to know what the Scepter of Darkness is, he tells her that [[DispenseWithThePleasantries he's only here to rescue her from Eggman's base and nothing more.]] Rouge then lampshades the fact that Shadow is "always business". In ''Sonic Forces'', he also tells her to "cut the chatter" when continuing to talk to him while he's about to rescue Omega.
** In ''Shadow the Hedgehog'', Sonic tries to converse with Shadow several times throughout the games. Shadow is not interested, unless it's about the mission, and believes he's wasting his time.
* HaughtyHmph: He's a frequent user of this trope. It's his way of expressing how arrogant and disapproving he is towards others.
* HeartbrokenBadass: Although it was familial love and he doesn't express it often, Maria's death hit him hard.
* TheHeavy: In ''VideoGame/SonicAdventure2'', while he pretends to act as TheDragon to Eggman, it's his presence that drives the plot, and he is in fact manipulating Eggman for his own purposes.
* [[HeelFaceRevolvingDoor Heel–Face Revolving Door]]: According to his backstory, he was a face, then after a tragic incident, he became a heel. He later became a face for the ending of ''Sonic Adventure 2''. After his revival, he was neutral before settling on being a face.
* HeroicRROD: It's implied at the end of ''Sonic Adventure 2'' that he was overwhelmed by the power of his Chaos Emerald-induced SuperMode, which may be part of why he lost his power and fell into Earth's orbit during the HeroicSacrifice mentioned below.
* HeroicSacrifice: At the end of ''Sonic Adventure 2'', he helps save the world from the Final Hazard, but uses up all of his power before he falls from space towards the Earth. He was initially believed to have died, but ''VideoGame/SonicHeroes'' reveals that he survived, but amnesiac.
* HiddenHeartOfGold: He's a violent, egotistical {{Jerkass}} whose actions border on out and out villainy on occasion, but he's always on the side of justice and he genuinely cares about others, even if it's ''very'' hard to see.
* HumansAreTheRealMonsters: His initial attitude, regarding the humans as heartless due to the tragic incident on the ARK. Despite this, Shadow still put it aside to give them a chance as he promised to Maria.
* ItsAllMyFault: After realising the damage he caused by letting Black Doom manipulate him thinking it would help him get answers to his past, Shadow breaks down from guilt, and even loses hope of fully redeeming.
-->'''Shadow:''' "I am Shadow the Hedgehog. A research experiment gone deadly wrong... I caused so much destruction... I should have never have been created... This is who I am."
* ImageSong: He has more than any character in the series. [[VideoGame/SonicAdventure2 Throw It All Away]], [[VideoGame/SonicTheHedgehog2006 All Hail Shadow]], [[VideoGame/SonicAdventure2 Rhythm and Balance, The Supernatural, Supporting Me,]] {{I Am| Song}} [[VideoGame/ShadowTheHedgehog (All of Me)]], [[VideoGame/ShadowTheHedgehog Almost Dead, Waking Up, Chosen One]], [[GoldenEnding Never]] [[VideoGame/ShadowTheHedgehog Turn Back]], [[CutSong Who I]] [[VideoGame/ShadowTheHedgehog Am]].
* ImmortalImmaturity: He's technically over 50 years old, but is physically the same age as Sonic, and although he's clearly alot more mature and cautious than Sonic, he can act somewhat young in comparision to his psychical age. {{Justified|Trope}}, he's been in [[SealedBadassInACan suspended animation]] for most of those years, and didn't have very much time to mature as a consequence, though the question of whether he ''can'' mature is something of an open one.
* ImmortalityBeginsAtTwenty: Or at [[VagueAge somewhere in the teens,]] at any rate. He generally is portrayed is being of an age to Sonic (who is 15-[[VagueAge ish]]) but thanks to Gerald Robotnik's research, he is ageless and immune to disease. Despite being 50+ years old, however, he technically spent most of that time in stasis, so it's ambiguous if his body really has stopped aging.
* IneffectualLoner: He is used in being a lone wolf since he doesn't put a lot of value on teamwork and of the like when getting things done. It also doesn't help that he doesn't seem very fond of anyone's presence that much.
* InformedAbility: He tends to be {{fragile|Speedster}}, despite his {{Immortality}}. Considering the nature of Gerald's research, it's more of a "absolute immunity to age and illness".
* {{Irony}}:
** Shadow hated GUN for killing Maria Robotnik; he now works for them.
** In ''Sonic Adventure 2'', Shadow acknowledged Sonic as the ''real'' ultimate life form after seeing him use the fake chaos emerald. After he lost his memory, he went back to referring himself as the ultimate life form and viewing himself superior to Sonic.
** He is introduced as Sonic's imposter. Since then, he's had to deal with imposters on [[VideoGame/ShadowTheHedgehog three]] [[VideoGame/SonicTheHedgehog2006 separate]] [[VideoGame/SonicForces occasions]].
* IWasJustPassingThrough: Whenever Shadow helps or saves someone, he will state that it is linked to his personal goals.
** In ''Sonic Adventure 2'', he saves Rouge by using Chaos Control before Prison Island explodes, and then claims that he didn't come to save her, he came for the Chaos Emeralds.
** In ''Shadow the Hedgehog'', after helping Sonic eliminate a number of Black Arms soldiers in Westopolis, he tells him that he didn't come to save him, although Sonic expected him to say that.
* {{Jerkass}}: Arrogant, egotistical, self-serious and violent. Sonic doesn't consider Shadow a "friend" as much as he considers Shadow a rival who might work with him if their goals happen to align.
* JerkWithAHeartOfGold: Despite his aloof, arrogant, and violent tendencies, he's always at the front lines whenever a new threat arises and is capable of working with the heroes too when they're on the same page. He has also shown genuine care for several characters, such as his late surrogate sister, Maria, Professor Gerald, his friends/partners, Rouge and Omega, Amy (who he opened up to after making him remember his true promise to Maria, and helped her find Cream in ''Shadow the Hedgehog''), and even his arch-rival Sonic.
* TheJuggernaut: Simply put, once Shadow gets started on something, he is nigh-unstoppable. Barriers, walls, entire armies are nothing but doorstops to him. ''Nothing''[[note]]Besides a few individuals such as [[DoAnythingRobot E-123 Omega]] according to the BadFuture in ''VideoGame/SonicTheHedgehog2006''[[/note]] is going to slow him down, much less stop him. Best seen in the ending to his story in ''06'', where after being swarmed with Mephiles clones, he removes his PowerLimiter rings, grabs his teammates, and runs through them all.
* KiManipulation: His ability to manipulate Chaos energy allows him to do these.
* KnightInSourArmor: He eventually becomes this after the events of ''Shadow the Hedgehog''. Pretty much his only reason for fighting for the world is because Maria told him to before she died. This was best demonstrated in ''Sonic 2006'' when Mephiles tries to bring Shadow over to his side by telling him that the word will turn on him one day, Shadow simply responds by saying [[ShutUpHannibal he'll fight like he used to.]]
* KnightOfCerebus: Was never a villain (even at his debut) but he is most certainly this for the ''Sonic the Hedgehog'' franchise. Almost anything concerning Shadow is grimly serious and a harsh turn away from the jovial attitude the main protagonist embodies.
* KnightTemplar: In some iterations in the franchise, he is this, and will use ''any means'' to ensure his own sense of justice is carried out, and will kill anyone to illustrate how far he will go.
* LonerTurnedFriend: Over time, he develops a genuine friendship with his partners, Rouge and Omega.
* TheLancer: Even though he's the most recognizable of Team Dark, he functions as this to Rouge, at least in ''VideoGame/SonicHeroes''.
* LargeHam: Mostly in ''VideoGame/ShadowTheHedgehog'' and ''VideoGame/SonicTheHedgehog2006''. He engages in some HamToHamCombat with Mephiles in the latter.
* {{Leitmotif}}: His original one is ''[[https://www.youtube.com/watch?v=tKS4duPqNyo Throw It All Away]]'' from ''VideoGame/SonicAdventure2''. Lately, however, it's been ''[[https://www.youtube.com/watch?v=-mYugbpYaco All Hail Shadow]]'' used as the hero ending theme in ''VideoGame/ShadowTheHedgehog'', as his main theme in ''[[VideoGame/SonicTheHedgehog2006 '06]]'', and as his ThemeMusicPowerUp in ''VideoGame/SonicGenerations''.
* LightningBruiser: When he's not balanced, he's usually this. He's fast enough to keep up with Sonic thanks to his Hover Shoes. And his sheer natural power and skill alone is enough to make the option of fighting him virtually suicide.
* MeaningfulName:
** A Sonic Channel comic suggests that Maria thought up the name Shadow, with a meaning in mind.
-->'''Maria:''' Darkness can be anywhere you go, but a shadow represents the direction in which the light is shining!
** Other sources have suggested his name comes from the program that created him, "Project Shadow," which named as such because of how likely it was to succeed.
* MovesetClone: Plays identically to Sonic in ''Adventure 2'' and ''Heroes''.
* MulticoloredHair: He has black fur with red stripes.
* MysteriousPast: Was first presented as being a doppelganger of Sonic with a mysterious past involving the loss of a loved one. Ironically, this is subverted at the end of his own StoryArc; more about his past has been revealed than any other character in the series, including Sonic himself!
* NiceJobBreakingItHero: While he couldn't've known at the time, Shadow [[spoiler:beating Infinite up and calling him worthless]] sparks [[spoiler:Infinite giving himself the powers of the Phantom Ruby,]] and ''that'' leads to [[spoiler:Sonic being defeated and Eggman taking over the world]]. Cue ''VideoGame/SonicForces''. [[JustifiedTrope Even then, however,]] [[spoiler:[[KickTheSonOfABitch Infinite and his group of mercenaries were already working under Eggman anyway]]]].
* NiceMeanAndInBetween: In-Between. Usually pretty cynical, aggressive and dark overall. Underneath it all, however, he does have a caring side to him and remains on the side of justice.
* NinetiesAntiHero: He never fully played this trope, but he's always sort of leaned on it (his name and color scheme being pretty harsh and a vengeful personality). He shows more traits of this for his own game, though (guns, swearing, and motorcycle riding galore).
* NobleDemon: He's neutral by allignment, seems willing to achieve his goals at all costs and acts with a dark and cynical attitude, but he risks his life to save the world and cares deeply for his only friends.
* NominalHero: Subverted. In ''Shadow The Hedgehog'' where even after the player clears the hero missions, Shadow is [[NotInThisForYourRevolution mainly focused on regaining his memories.]] However, in the Pure Hero and Canon ending, Shadow puts that goal behind him to save the world as he promised Maria.
* NoNonsenseNemesis: Once a misguided nemesis to Sonic, who is now his serious and bitter arch-rival.
* NoSenseOfHumor: He has one, it just doesn't come up much due to the [[DarkerAndEdgier dark tone]] of his games and the situations he finds himself in.
* NotEvilJustMisunderstood: G.U.N accuses Shadow for being evil and blame him for Maria's death. In reality, Shadow tried to ''save'' Maria from ''them'', and strives to protect the planet despite their judgements and mistakes.
* NotSoAboveItAll:
** Although he's far more dark and serious than the other characters, he can sometimes embed the cockiness of Sonic, like when he called himself "the coolest".
** Despite being very distant and solitary, he does sometimes show up at events with the other heroes, such as the racing challenges, and even at Sonic's birthday party.
** Despite being just as [[TheComicallySerious Comically Serious]] as ever when he appears in the 2017 Twitter Takeover, he definitely has his moments:
*** When they get a question about Amy that makes Sonic uncomfortable, he joins Eggman in teasing Sonic over it.
*** He starts to think that they're stalking a fan when they start reading his profile, clearly not that familiar with how social media works.
*** When someone asks what Eggman would do if he wasn't an evil genius, he starts eagerly describing a scenario where Eggman starts knitting and becomes a CrazyCatLady.
*** When one question states that he and Eggman are technically cousins due to Gerald Robotnik contributing to Shadow's creation, he is quick to point out that genetics don't work that way.
*** He's clearly amused at the thought of a [[EvilKnockoff Metal Shadow]].
*** He starts taking notes when Sonic describes how to grow a personal brand... and is clearly taken aback when he mentions [[VideoGame/SonicTheHedgehog2006 making a game that gets slammed by reviewers]].
*** Finally, when all is said and done, he decides that the fans want a new game starring him... and Big the Cat.
* NotSoDifferent:
** Him and Sonic, particularly in ''VideoGame/SonicAdventure2''. While Shadow is more focused and serious, him and Sonic share a lot of similarities, namely their SuperSpeed, [[LeeroyJenkins impatience]], [[SmugSuper an extremely high opinion of themselves]], are devoid of showing or talking about their own feelings, [[ScrewTheRulesImDoingWhatsRight and a strong sense of doing what they feel is right.]] In the aforementioned game, the two spend the entirety of it accusing the other of being the "faker".
** Also to Silver to a lesser extent. Although Shadow is way smarter than Silver and is far more comfortable with being alone, he shares a few similarities to him. They're both determined in doing what they believe is right and are ruthlessly focused, doing whatever it takes to get things done. They also both act as rivals to Sonic and are some of the few to beat him in battle, have white chest fur, and a DarkAndTroubledPast. Both also like to mock their opponents in combat.
* NotSoSimilar: He and Knuckles are often compared to each other due to their supposed similarities. Both are major foils to Sonic who started off as his enemy before eventually becoming his ally. However, Knuckles maintains a rather {{Friendly Rival|ry}} relationship with Sonic while Shadow plays the distant, dissenting rival. Their temperaments are pretty at odds too despite both being serious minded individuals, Knuckles is rather HotBlooded and easily angered while Shadow is far more calm and composed.
* NotSoStoic: He does show his vulnerable side at times.
* OneManArmy: Has decimated entire armies single handily. In ''Shadow the Hedgehog'', depending on which ending a player gets, he could take out the highest members of G.U.N, Black Doom's army, and Eggman's forces, all by himself.
* OutOfFocus: In his heyday, he had more plot and character focus than Sonic himself. In later games, he made mainly cameo and boss appearances, up until ''VideoGame/SonicForces'' where he's one of the main enforcers in Eggman's army, and even has his own campaign taking place before the game starts.
* PerpetualFrowner: You'll only see him either frowning, indifferent, or smirking. That is, until ''[[VideoGame/MarioAndSonicAtTheOlympicGames Mario & Sonic at the Olympic Winter Games]]'', where you can catch him smiling if he does well at an event. Also averted in ''[[VideoGame/SegaSuperstars Sonic & All Stars Racing Transformed]]'', where he'll occasionally fist pump in excitement with a decidedly OutOfCharacter look on his face before starting a race.
* PersonOfMassDestruction: He's a walking mini nuke with the power (depending on the number of Chaos Emeralds he has) to devastate cities and fortresses.
* PetTheDog: He was in attendance for Sonic's birthday party in the end of ''VideoGame/SonicGenerations'' and instead of doing whatever he was doing, he decides to stick around.
* PintSizedPowerhouse: He's the same size as Sonic and can take out towering monsters and giant robots with nothing but the shoes on his feet.
* PoorCommunicationKills:
** A lot of Shadow's conflict with everyone else comes from his inability to just talk with them and accept their help instead of acting like a lone wolf.
** In ''VideoGame/ShadowTheHedgehog'', he apparently never thinks to ask any of his friends about his past, even though every single one of them both know him well as well as found out about his past in ''Adventure 2''.
* PowerIncontinence: The first time he used his SuperMode, he couldn't control it very well and was gradually losing energy. He was able to hold out long enough to help Sonic put the falling Ark back into orbit before ultimately succumbing and falling towards the planet.
* PowerLimiter: His Inhibitor Rings on his wrists and ankles. The rest of this article's description of his power is what he's like with them ''on''. When he takes them off, the increase is substantial enough to allow him to [[CurbStompBattle thrash]] bosses like they were the weakest of mooks. On the other hand, he cannot control such strength and causes massive unintentional destruction with it, so he's hesitant to take them off.
* PowerOfTheVoid: As shown in ''Sonic Battle'' (Chaos Nightmare), he is capable of distorting space-time around him to damage enemies.
* PragmaticHero: What sets him apart from the rest of the cast, Shadow will ShootTheDog as many times as he needs to if it means saving the world.
* {{Pride}}:
** He's confident in his abilities and title of being the UltimateLifeForm, and has no problem with voicing his superiority complex. This doesn't stop him from accepting responsibility and focusing on more important things, anyhow.
** This seems to me the reason he entered the race in ''Sonic Free Riders''. Rouge wanted the money, but Shadow just wanted to beat everyone.
* QuestForIdentity: His entire StoryArc from ''VideoGame/SonicAdventure2'' to ''VideoGame/ShadowTheHedgehog''.
* TheQuietOne: He was never the type to talk much. Particularly in ''Heroes'' and ''Sonic the Hedgehog'' (2006).
* Really700YearsOld: Much due to being an immortal. Despite appearing to be the same age as Sonic, he was created 50 years ago.
* RedAndBlackAndEvilAllOver: Though the "evil" part depends on the game.
* RedEyesTakeWarning: Both in his default state, and when he's in super form.
* RedOniBlueOni: Inverted when it comes to him and Sonic. Shadow has a partially red color scheme, but is [[TheStoic reserved and collected]] most of the time in contrast to the blue, but very extroverted Sonic.
* ReformedButNotTamed: Even if he's fighting along the side of good since ''Sonic Adventure 2'' and aside from having amnesia after his HeroicSacrifice, Shadow still remains stoic, deadly serious, and quite cold towards everyone around him and maintains his rivalry with Sonic.
* ReplacementFlatCharacter: Shadow had taken the role of the stoic and deadly-serious rival from Knuckles who was becoming more of an ally to Sonic over time.
* ReverseGrip: As Lancelot in ''Sonic And the Black Knight.''
* TheRival: He's not the first of Sonic's rivals, or even the last, but he's by far the most recognizable. He still retains this role even after his [[HeelFaceTurn Heel–Face Turn]]. He also had some bouts with Silver in ''Sonic '06'' and the ''Rivals'' series.
* RivalTurnedEvil: He becomes this in his own game if the player completes the last dark missions.
* RollerbladeGood: He moves using rocket skates.
* SealedEvilInACan: He was held in suspended animation in Prison Island after GUN raided the ARK. True to form, Eggman releases him.
* SealedGoodInACan:
** Happens after ''VideoGame/SonicAdventure2'', but in ''VideoGame/SonicHeroes'', Rouge releases him.
** In the BadFuture of ''VideoGame/SonicTheHedgehog2006'', but this time no one releases Future Shadow.
* SanitySlippage: In a few of the "evil" endings, he will go insane after learning more about what GUN put him through, either setting himself to destroy the world or conquer the universe, with an EvilLaughter to demonstrate.
* ShadowArchetype: Pun aside, Shadow is this to Sonic. He is what Sonic would be if he was willing to go through some extremes to get the job done.
* ShipTease: This happens surprisingly often with Rouge [[VideoGame/SonicBattle in]] [[VideoGame/SonicTheHedgehog2006 later]] [[VideoGame/SonicRivals games]].
* ShockAndAwe. His Chaos Blast, in which he either makes an [[SphereOfDestruction explosion of Chaos Energy]] from his body [[labelnote:* ]]As seen in ''VideoGame/SonicBattle'', ''VideoGame/ShadowTheHedgehog'', ''VideoGame/SonicTheHedgehog2006'', and ''[[VideoGame/SonicStorybookSeries Sonic and the Black Knight]]''[[/labelnote]], or shoots out a concentrated version through his hands [[labelnote:* ]]as seen in ''Sonic Battle''[[/labelnote]].
* ShutUpHannibal: He pulled this on both [[VideoGame/ShadowTheHedgehog Black Doom]] and [[VideoGame/SonicTheHedgehog2006 Mephiles]], when they tried to get him to join their respective causes.
-->'''Black Doom:''' You still don't understand, do you? The future we offer is the only option for these humans.
-->'''Shadow:''' I've heard enough! You're boring me to death, Black Doom! '''You're going down!'''
* SignatureMove: Chaos Control. It's not exclusive to him, but he's the most proficient user, and even has several other Chaos attacks exclusive to him. Its uses include: TeleportersAndTransporters, TimeMaster (although actual time travel requires two users), and FlashStep.
* ASinisterClue: His left-handedness can be seen as an indicator of his AntiHero nature.
* SirSwearsALot: Only in [[VideoGame/ShadowTheHedgehog his own game]] and even then, it's considerably mild in comparison to most examples. That said, he does curse with nearly every sentence he speaks.
* SmarterThanYouLook: This is only really noticeable in Sonic the Hedgehog (2006) and it shows how dangerous Shadow can be. He was the only person in the entire game who was aware of what was really going on and sought to put a stop to it. He even convinced Silver that he was being deceived by Mephiles. Unfortunately, Shadow's plan was only 99% effective as one fragment that escaped caused the Last Story.
* SmugSuper: Despite frequently admitting how impressed he is with the combat abilities of his foes and rivals, he remains assured of his superiority in the end. Sonic also rivals him in terms of sheer arrogance.
* SmugSmiler: He sometimes smirks out of smugness or confidence.
* SpiritedCompetitor: Shows this with Sonic recently. It was even mode apparent that even god like beings like Solaris excite him.
* SpotlightStealingSquad: A rather infamous example of this. From his debut to ''2006'', he had just as much, if not more focus on his character arc than Sonic himself. A lot of people easily forget that it's ''Rouge'', not Shadow, who led the team in ''VideoGame/SonicHeroes''.
* StockShonenRival: One of the most archetypal examples of this trope, and almost as known as [[Characters/DragonBallVegeta one of the trope codifiers]]. Contrasting Sonic's upbeat and carefree attitude, Shadow is dour and soft-spoken and tends to prefer solitude than socializing with people. Notably, it wasn't being defeated by Sonic that triggered his [[HeelFaceTurn Heel–Face Turn]], but coming to terms with his past transgressions and learning to move forward with his life.
* TheStoic: He very rarely emotes, but he does let it slip at times, which leads to times when he is NotSoStoic.
* StoryBreakerPower: He can stop time using Chaos Control with no known limits, and this comes with his ability to teleport. Needless to say, he never seems to use this ability to its fullest potential.
* SugarAndIcePersonality: Eventually develops into this over the course of his character arc, forming a strong bond with his teammates and even mellowed down his rivalry with Sonic to an extent.
* SuperheroPackingHeat: Unlike Sonic, he has no qualms using any firearms he could get his hands on.
* SuperMode: Super Shadow.
* SuperpowerLottery: Considering he was made to be the perfect weapon, this is hardly surprising.
* SuperSpeed: Enough to rival Sonic's. Although unlike Sonic, he relies on his Hover Shoes to propel himself at fast speeds.
* SuperStrength: In his [[VideoGame/ShadowTheHedgehog self-titled game]], he can overturn buses and giant slabs of concrete that fell off highways with one hand, as well as punch through solid steel and concrete.
* {{Tsundere}}:
** After his return, Shadow still acts somewhat cold towards pretty much everyone, and borders on a destructive nature. Despite this, he's shown to care about others deep down, also developing a bond with his partners, Rouge and Omega.
** Although Sonic is still his rival, he does respect him to a degree and always shows up to help him when he needs it the most. Lampshaded in ''VideoGame/SonicColors''.
-->'''Shadow:''' Looks like I don't need to be worried.\\
'''Sonic:''' What was that?\\
'''Tails:''' Were you worried if we would get hurt, trying to save the wisps?\\
'''Shadow:''' Hmph!\\
'''Sonic:''' I'll take that as a compliment.
* ATasteOfTheirOwnMedicine: Eggman, who Shadow duped into activating Gerald's scheme in ''Adventure 2'', attempts to inflict this in ''Shadow'', exploiting Shadow's amnesia to trick him into thinking he is an android created by him.
* TheLeader: Of Team Dark, it was Rouge but later Sonic games put Shadow in the front seat of the teams ultimate objectives and tasks, he's pretty much the leader to Rouge and Omega in loyalty and active team based demolition.
* TheOnlyOneAllowedToDefeatYou: [[IWasJustPassingThrough He seemingly pulls this]] off by intervening in a fight between [[VideoGame/SonicTheHedgehog2006 Sonic and Silver]] saving Sonic from a potentially fatal blow, offhandedly making sure he's okay, then fighting Silver in his place. That time, he had a very good reason besides this trope to save Sonic, as he deduced that Mephiles is intending to eliminate the past. Later on in the same game, he expresses silent remorse at [[spoiler:Sonic's death]], but once he finds out that the Chaos Emeralds can undo this, immediately takes on the toughest challenges in order to retrieve the gems.
%%* Troubled, but Cute
* ThenLetMeBeEvil: In ''Shadow the Hedgehog'', the commander accuses Shadow for being responsible for the murder on the ARK, and is judged to be evil by GUN and most of humanity. In the "evil" endings, after learning only the gruesome parts of his past, Shadow goes to revenge against humanity, believing that HumansAreTheRealMonsters.
* TimeMaster: While he's not the only character in the series capable of warping time and space with Chaos energy, he is the most proficient in its usage.
* TookALevelInJerkass: Appears to take a step in ''Sonic Free Riders'', where he seemed to have no problem with helping Rouge steal the cash price from the World Gram Prix, and regarded E-10000B as JustAMachine which is pretty different from the bond he has with Omega, as seen in ''Sonic the Hedgehog 2006''.
* TrashTalk: He can't resist to boast about himself before a fight. He especially does it when fighting Sonic.
-->'''Shadow:''' You're comparing yourself to me? Ha! You're not even good enough to be my fake.
* TsurimeEyes: Compared to Sonic's style of eyes.
* UltimateLifeForm: TropeNamer. He is ageless and has a perfect immune system. If he's never killed by outside forces, he will live forever. And that never happens either, since he's basically able to beat ''anyone''.
* UndyingLoyalty:
** To Maria, keeping his promise to her at all cost, even if it means protecting the humans he despises. He also develops this to his partners, Rouge and Omega.
** Depending on which path you take, Shadow can also have this to Eggman.
--->'''Shadow:''' I cannot betray the doctor.
* TheUnfettered: The key difference between him and Sonic. The latter wears his heart on his sleeve and always acts on how he feels, Shadow on the other-hand will not let his personal feelings get in the way of getting the job done.
* UniversalDriversLicence: He can pilot hang gliders, humvees, motorcycles, and alien hovercraft. He doesn't even own any of this himself, he just finds them lying around!
* UnscrupulousHero: Shadow does what he can to protect the Earth and his people. His intentions are good, but at the same time, he doesn't care what he has to do in order to achieve his goals, which leads to aggressive, and often destructive acts. He also doesn't care what others think of it, which is what separates him from Sonic and his friends.
* UnwittingPawn: In ''Shadow the Hedgehog'', he this to both Doom ''and'', to a lesser extent, Eggman.
* VitriolicBestBuds:
** He and Rouge tend to snark at each other on occasion.
** He also displays this with Sonic as evident in ''VideoGame/ShadowTheHedgehog'' where he is irritated of the blue hedgehog's friendly attitude and adventurous nature.
* VocalEvolution: Creator/KirkThornton's take on Shadow in ''Generations'' and the ''Boom'' sub-franchise was rather deep and gruff, and almost sounded villainous (which fits the latter, as Shadow is [[AdaptationalVillainy much more evil]] in his ''Boom'' appearances). By the time he voices Shadow in ''Forces'' and the 2017 Twitter Takeover, he's hit a voice that's more similar to David Humphrey or Jason Griffith's take on the character, downplaying the deepness in his voice.
* TheVoiceless: In ''VideoGame/SonicForces'', [[spoiler:the Shadow virtual constructs never talk or even vocalize a sound during the main campaign. Considering the Zavoks can do both, it makes the Shadows' lack of speech odd]].
* WithFriendsLikeThese:
** He and Sonic's rivalry seemed to have become slightly more friendly over time, but he's still annoyed of the blue hedgehog's unserious attitude, and their rivalry is still rather intense and agressive when not putting it aside.
** Shadow and Rouge to a lesser extent. They are pretty good friends, but Shadow is rather shown to try to avoid talking to her when they're on a mission, and Rouge doesn't seem to be able to fully accept it, remarking him several times in ''Sonic the Hedgehog 2006''. They also have no problem with fighting each other if they are in the way of each other's goals, as shown in ''Sonic Rivals 2''. Despite that, though, they get along.
* WithUsOrAgainstUs: He doesn't fully play with this trope, but if he feels that you're hindering him from reaching his objectives, he will assume that you're against him and will stop at nothing to attack you. He states this in his game after clearing a mission.
-->'''Shadow:''' Anyone who's against me is my enemy.
* WoobieDestroyerOfWorlds: In ''VideoGame/SonicAdventure2'', his initial goal was to end humanity after G.U.N killed off his family, Maria and Gerald. In general, those experiences are the reason why Shadow is so isolated and reserved. And depending on which path you take in the ''Shadow the Hedgehog'' game, he can also be this. Both in the ''evil'' ending where after learning his DarkAndTroubledPast, goes back to his revenge quest in his debut, or in the ''Slightly Hero'' ending where he feels so guilty about letting Black Doom use him to destroy the humans that he feels like he should never have been created.
* WorthyOpponent:
** To Sonic, but also considers Sonic this. In ''Sonic Adventure 2'', he seemed pretty upset when it looked like [[spoiler:Sonic died in Eggman's trap]] and was impressed when not only [[spoiler:he survived]], but managed to use Chaos Control with a ''fake'' Chaos Emerald. It was at this point Shadow acknowledged Sonic as his equal and how dangerous he is. From then on, Shadow seems to enjoy the occasional bouts he and Sonic have.
** One of the endings to ''VideoGame/ShadowTheHedgehog'' invokes this as well. The route makes Shadow pretty much a complete hero, but if you chose to do the dark mission right before the FinalBoss, you'll be fighting Sonic (and a mech powered by the GUN Commander) and he asks why Shadow is siding with the Black Arms. Shadow claims he doesn't really care about the Black Arms and just wanted a chance to fight Sonic, and winning has him boasting about being the "Ultimate Hedgehog".
* WouldHurtAChild: Simply put, there's no one he won't beat up. [[WouldHitAGirl Gender]] or [[WouldHarmAChild age]] is no deterrent. If you're the target or a hindrance to his goals, then you're just as eligible for a beatdown as the villains.
[[quoteright:250:https://static.tvtropes.org/pmwiki/pub/images/shadowthehedgehog.png]]
-->''"If the world chooses to become my enemy, I will fight like I always have."''
->'''Debut''': ''VideoGame/SonicAdventure2''
!!!!!!Voiced by Creator/KojiYusa (Japanese), David Humphrey (English, 2001-2004), Creator/JasonGriffith (English, 2005-2010), Creator/KirkThornton (English, 2010-present)
-->An artificially created hedgehog made by the late professor Gerald Robotnik. 50 years before the start of the series, Gerald made a deal with an alien named Black Doom that he'd create the ultimate weapon for Doom in exchange for his immortal blood to cure his ailing granddaughter, Maria. G.U.N. caught wind of this and had the entire project shut down, and Shadow was sealed away until Dr. Eggman released him during the events of ''VideoGame/SonicAdventure2''. Over the course of the game, Shadow reveals he was carrying out Gerald's will and worked to destroy the planet as revenge for Maria's death. However, Amy manages to convince Shadow to help, and he remembers Maria's wish to protect humanity. He and Sonic team up to destroy his own prototype, and he apparently dies in the effort. He survives and eventually confronts Black Doom himself, and finally puts his past behind him and walks his own path.
-->Shadow is a very straightforward individual; he's aloof, taciturn, and ambitious. Because of his attitude, he is extremely hard to get along with and has a very independent nature, preferring to [[IWorkAlone work on his own]] more often than not. While he's not ruthless, he is extremely pragmatic and will handle any situation in his own way, regardless if anyone likes it or not.
* TheAce: One of the prominently best examples in the series. Even outstripping Sonic in fighting versatility.
* AccidentalPervert: There are one too many moments in ''VideoGame/SonicTheHedgehog2006'' where Rouge is explaining something to Shadow and his gaze seemingly lowers at her bountiful bosom, which is often broken when Rouge is done talking and Shadow briefly shakes his head to focus. This may be more due to wonky eye or model animations than an intentional peek, however.
* AboveGoodAndEvil: When it comes to his goals, he will achieve them at all costs.
* TheAgeless: Most likely due to the genetic material contributed to Project Shadow by his biological "father," [[spoiler:Black Doom]]. The reason behind this was that Shadow's creator, Professor Gerald Robotnik, wanted to study immortality and use the fruits of his research to find a cure for his granddaughter (and Shadow's surrogate sister) Maria, as she was terminally ill and suffering from a fatal disease known as Neuro-Immune Deficiency Syndrome. The only thing that shows ages are his shoes, with the soles' paint flaking off in most 3D artworks of Shadow.
* AllegedLookalikes: It's often stated he looks like Sonic, but he really doesn't,[[note]]his [[https://i.redd.it/iltr6motpraz.jpg older design]] when he was named "Terios" does look like Sonic[[/note]] at least not any more than any other hedgehog in the series (Amy or Silver) does.
* AloofAlly: He helps his teammates and even assists Sonic and his friends on occasion, but that doesn't exactly make him a big fan of team spirit.
* AlwaysSomeoneBetter:
** The main reason why Sonic considers him his rival. He was this to Sonic from his first appearance, seen getting the upper hand on Sonic the first time they fought. However, it is taken even further in ''VideoGame/ShadowTheHedgehog'', where Shadow beats Sonic without much effort (though the endings where he fights Sonic are non-canon). In more recent games, though, it's Sonic who tends to win. It generally comes down to who the player is controlling at the time.
** He's this to Infinite as well. As "Episode Shadow" of ''Sonic Forces'' showed, Infinite considered himself the "ultimate mercenary," until Shadow whipped Infinite's butt with hardly any effort, even making Infinite shake in fear of Shadow. [[spoiler:Not only did this fuel Infinite's InferioritySuperiorityComplex, but he vowed he'd never lose again, especially not to Shadow.]]
* ArrogantKungFuGuy:
** He views himself as superior to everyone in battle. This is especially shown in ''VideoGame/SonicAdventure2'' and ''VideoGame/SonicRivals''.
** It shows in the Pure Hero-Dark Path of his [[VideoGame/ShadowTheHedgehog self-titled game]] as well, where he ended up challenging Sonic as earned to being his rival, than boasted highly about his own strength after he defeated him, and even laughing about it.
** [[spoiler:This comes to bite him [[UnwittingInstigatorOfDoom and the rest of the world]] in ''VideoGame/SonicForces''; his physical and verbal beatdown of a pre-empowerment [[AxCrazy Infinite]] inflamed the latter's InferioritySuperiorityComplex and [[CreateYourOwnVillain sent him over the edge into sociopathic villainy]].]]
* AmnesiacHero: His fall to Earth at the end of ''VideoGame/SonicAdventure2'' caused him to lose his memory for a time.
* AntagonistInMourning: A rival variant, although he's a frenemy to Sonic and not an antagonist.
** In ''VideoGame/SonicAdventure2'', as he watches the escape capsule Sonic was trapped in explode, he commented about how he isn't a "fake" hedgehog after all in a slightly disappointed tone.
-->'''Shadow''': I guess he was just a regular hedgehog after all.
** In ''VideoGame/SonicTheHedgehog2006'', he closes his eyes in grief when Sonic [[spoiler:was killed by Mephiles in order to make Elise cry]].
* AntiAntichrist:
** Shadow was created by Black Doom so as to aid him in conquering Earth. However, Shadow eventually went against said destiny, destroyed Black Doom, and is now one of the chief defenders of the planet.
** This happens to Shadow a lot. Post-breakdown Professor Gerald reprogrammed Shadow's mind to carry out his plot to destroy Earth, but his [[TheLostLenore memories of Maria]] caused him to decide to save it instead. Later, Mephiles tried to convince Shadow to fill [[TheAntichrist the role of destroyer]] again, [[ShutUpHannibal but he'd finally learned his lesson and would have absolutely none of it.]]
* AntiHero: The most prolific example in the series. He is also known for achieving his goals by all means necessary, even it means playing the villain's game on occasions. But he does have moments of heroism, like [[HeroicSacrifice sacrificing himself to save the world]] and helping Silver realise that Mephiles has [[UnwittingPawn used him as a pawn]].
* AntiVillain: Shadow was driven by the loss of his surrogate sister in his debut appearance.
* ArchEnemy: To Black Doom in ''VideoGame/ShadowTheHedgehog'', Mephiles the Dark in ''VideoGame/SonicTheHedgehog2006'' [[spoiler: and temporarily Infinite in ''VideoGame/SonicForces'', although Infinite eventually turned his attention to Sonic and the Avatar]].
* [[ArtificialHuman Artificial Hedgehog]]: Created by Dr. Gerald Robotnik on the Space Colony ARK from the cells of Black Doom.
%% Please, do not put Badass. It is no longer a trope.
* BadassAndChildDuo: Was the badass to Maria's child, before she died.
* BadassArmfold: His usual pose.
* BadassBaritone: With the exception of David Humphrey and Creator/KirkThornton, Shadow's voice tends to be very low and booming.
* BadassBiker: In ''VideoGame/ShadowTheHedgehog'', ''VideoGame/SonicTheHedgehog2006'', and ''[[VideoGame/SegaSuperstars Sonic and Sega All-Stars Racing]]'', he can use the Dark Rider motorcycle.
* BadassBoast: He's very fond of these, to the point of being this Trope itself for the Sonic series:
** From ''VideoGame/SonicAdventure2'':
--->"My name is Shadow. I'm the world's Ultimate Life Form. There's no time for games, farewell!"
--->"Behold the true power I possess!"
--->"Before this is over, I'll show you the true power of ''Chaos Control''!"
** From ''VideoGame/ShadowTheHedgehog'':
--->"Behold, the ultimate power!"
--->"Death to all who oppose me!"
--->"I am Shadow the Hedgehog. I and only I, know what is best! No one can tell me what to do. This is who I am!"
--->"I am Shadow the Hedgehog. And now... I am the most powerful hedgehog in the world! The power of these Emeralds make me invincible [[ChewingTheScenery I am the ultimate hedgehog! THIS IS WHO I AM!]]"
--->"I am Shadow the Hedgehog. I've left the past behind me. No one can tell me what to do now! I will destroy you, Black Doom!"
** From ''VideoGame/SonicTheHedgehog2006'':
--->"If the world chooses to become my enemy, I will fight like I always have."
* BadassDriver: The trailers for ''VideoGame/ShadowTheHedgehog'' emphasized him driving his motorcycle, sometimes to the exclusion of any of his other abilities.
* BashBrothers: Often with Sonic, when the two put aside their differences. Sonic has at least come to respect Shadow's capabilities, even if he still mocks Shadow's attitude.
* BerserkButton: There are a few things that set him off.
** Getting in the way of his goals.
** Hurting his friends, namely Rouge, Omega, or Maria.
* BigBad: He's this in his debut in ''VideoGame/SonicAdventure2''. His manipulation of Eggman and his single-minded pursuit of helping to complete Gerald Robotnik's revenge drive the plot and result in an impending ColonyDrop. While he pulls a [[HeelFaceTurn Heel–Face Turn]] and helps clean up the mess, he's still the one who caused the whole thing to begin with.
* BigDamnHeroes: Has pulled this off on occasions.
** In ''Sonic Adventure 2'', he manages to teleport Rouge (and three of the Chaos emeralds, of course) off of Prison Island mere seconds before the whole island explodes.
** In ''Sonic 2006'', he was the second person to rescue Sonic from being killed by Silver (the first being Amy).
** In ''VideoGame/SonicForces'', [[spoiler:he rescues Sonic again, this time by defeating his clone who was going to charge into him.]]
* BreakoutCharacter: Got a StoryArc centered around him even though he was originally meant to die at the end of his debut appearance. He was even initially considered to have his own franchise.
* BrokenAce: He has skills and capabilities that rival Sonic's, and never has to worry about aging due to his immortality. All of this comes with deep-seated emotional scars as a result of his creation and subsequent loss of his surrogate family.
* BroodingBoyGentleGirl: Before she died, Shadow and Maria were a non-romantic version of this.
* BrutalHonesty: Has no problem breaking down the harsh truth.
* BullyingADragon:
** Often is the case towards anybody who tries to manipulate or persecute him. It never ends well for them.
** This happened to Infinite too, when he midly taunted Shadow and was very self assured that he could beat him, which resulted in Shadow beating him with no effort.
* ButForMeItWasTuesday: A perfect case happens in ''Sonic Forces: Episode Shadow''. For Shadow, it was just another day taking out Dr. Eggman's minions during an infiltration mission. [[spoiler: But for Infinite, it was his StartOfDarkness as Shadow killed the members of his mercenary group and gave him a CurbStompBattle that he took very personally. Afterwards, he was infused with the Phantom Ruby and became the tool necessary for Eggman to finally TakeOverTheWorld.]]
* ByronicHero: A family-friendly version, anyway. He's cynical, brooding, and spiteful, but he's also passionate, fiery, and does have a few close relationships, such as with Rouge and Omega.
* CanonImmigrant: The Inhibitor Rings (see PowerLimiter for more info), first seen in ''Anime/SonicX'', became canon as of ''VideoGame/SonicTheHedgehog2006''.
* CarpetOfVirility: Well, he's a hedgehog, and covered in fur, but his coloration invokes this.
* {{Catchphrase}}: He does have a few of these.
** "I'm the ultimate life form!"
** "I don't have time for games."
** "No one tells me what to do."
** "This is who I am!" - After every ending of '''Shadow the Hedgehog'''.
* ChallengeSeeker: Shadow never turns down a chance to test his abilities against potentially strong opponents like super dimensional beings, dragons, and of course Sonic himself.
* CharacterDevelopment:
** Shadow originally only cared about avenging the loss of his old friend and didn't even care if his own memories were fabricated into doing so. About two games later, he has accepted Maria's death and wishes to protect the world that she loved in honor of her memory and live his own life unshackled by past transgressions.
** He forms a genuine bond with Rouge (who he wanted nothing to do with in his debut), and Omega, even calling them his friends.
* TheChessmaster: Was clearly making use of Eggman's world-dominating ambition throughout ''VideoGame/SonicAdventure2'' in order to further his own goal (and Gerald's) in wiping out humanity in revenge for the murder of Maria Robotnik. The only reason he didn't succeed was that Amy convinced him to not go through with the plan. This also happened in the Pure Dark - Hero ending where he takes Black Doom's orders in order to get the chaos emeralds to remember his past, then later he ends up turning on him to take revenge against humanity on his own.
* TheCynic: Most notably in [[VideoGame/ShadowTheHedgehog his own game]]. Due to his past experiences, Shadow has a pretty pessimistic and dark worldview. He also has high disregard for Sonic's carefree nature, and is quite annoyed with his cheerful and unserious behaviour.
* CombatPragmatist: Despite his natural power, [[VideoGame/ShadowTheHedgehog his own game]] shows that he'll use guns, swords, or pretty much ANYTHING as a weapon if the situation calls for it.
* TheComicallySerious: His overly serious demeanor is sometimes played for laughs, particularly when juxtaposed with Sonic. Once in a while, he makes a few wits and one-liners.
* ConjoinedEyes: Like most ''Sonic'' characters.
* ContrivedCoincidence: His resemblance to Sonic is only a coincidence, seeing as he was created many years before Sonic was born.
* CoolBike: In ''[[VideoGame/SegaSuperstars Sonic & Sega All-Stars Racing]]'', his vehicle, the Dark Rider, is a motorcycle.
* CoolShades; Wears some in the ''VideoGame/SonicRiders'' series.
* CreateYourOwnVillain: Did this (accidentally) with [[spoiler:Infinite.]]
* CuteLittleFangs: Has these, though they're very hard to see.
* CutscenePowerToTheMax: In his ''[[VideoGame/SonicAdventure2 first ever scene]]'', he's seen using his air shoes to fly. Not once in any game has he been able to replicate this feat, with the closest exception being his [[VideoGame/ShadowTheHedgehog titular game]], where he'll temporarily hold himself in the air while shooting a sub-machine gun or variations.
* DaddyIssues: With Black Doom. In the majority of his self-titled game, Doom attempts to take advantage of Shadow's memory loss and use him to destroy the planet. After he learns the truth about his past, though, Shadow rebels against Black Doom and destroys him for good.
* DarkAndTroubledPast: In ''Sonic Adventure 2''. Blames himself for what happened to the Robotnik family and other citizens of Space Colony ARK and swears brutal justice for them. However, later on, his story becomes so convoluted that it pretty much overshadows this piece of his past.
* DarkerAndEdgier: Designed as such from the start, invoked in his own game.
* DarkIsEvil: At first in ''Sonic Adventure 2'' and ''Shadow the Hedgehog'' depending on the player's choice.
* DarkIsNotEvil: At the end of ''Sonic Adventure 2'' and games beyond.
* TheDarkSide: In ''Shadow'', he can draw on the power of evil and unleash his Chaos Blast.
* ADayInTheLimelight:
** At the height of his popularity, [[VideoGame/ShadowTheHedgehog he got his own game]].
** He also had his own campaign in ''VideoGame/SonicForces'' titled ''Episode Shadow'', set before the events of the main game.
* DeadpanSnarker: Has his moments, particularly in ''VideoGame/SonicAdventure2''. In general, though, he and Sonic snark at each other nearly every time they interact.
* DeathGlare:
** Gives off this a few times, such as [[https://68.media.tumblr.com/c5997e8bd1b50482cc107ed54b84e0cb/tumblr_inline_o4tb26XHgJ1r0rcm1_500.gif one]] in the intro of ''VideoGame/ShadowTheHedgehog'' and [[https://chiquitosilver.tumblr.com/post/163217652688/dont-look-at-me-like-that one]] in a fight against Sonic in ''VideoGame/SonicForces''. [[spoiler:The second example was given by a Phantom Ruby illusion rather than the real Shadow himself, however.]]
** He also gave one to Infinite when confronting him the first time, and again after beating him and telling him not to show himself around him again.
* DesperatelyLookingForAPurposeInLife: In ''VideoGame/SonicAdventure2'' back on the ARK, struggling with finding out why he was created. And then again in ''VideoGame/SonicHeroes'' and ''VideoGame/ShadowTheHedgehog'', due to his amnesia.
* {{Determinator}}: He will always fight on even if it's the world against him; also, in any goal he wants to carry out, he is near [[TheJuggernaut unstoppable.]]
* {{Deuteragonist}}: For a while after his debut, he had a major role in almost every main title alongside Sonic himself.
* DisproportionateRetribution: His initial appearance had him attempting to destroy the earth to avenge the murder of Maria Robotnik. He gets better.
* DivergentCharacterEvolution: In both ''Adventure 2'' and ''Heroes'', he's little more than a MovesetClone of Sonic. By ''Shadow the Hedgehog'', he finally gets to use his own Chaos abilities in-game, and eventually gets a completely different playstyle than anything Sonic has ever done in ''06''.
* TheDragon: To Black Doom in ''Shadow the Hedgehog'' Dark and Semi-Dark Story. Also this to Eggman, in ''Sonic Adventure 2'', the first ''Sonic Rivals'' game, and in ''VideoGame/SonicForces''.
* DragonWithAnAgenda: To Eggman in ''VideoGame/SonicAdventure2'', the agenda being annihilating the entire world as part of Professor Gerald's reprogramming before he was sealed.
* TheDreaded: Almost all media portrays Shadow like this, with him being possibly the most intimidating and fear-invoking character in the series. Sonic himself treats him more seriously than any rival and enemy he has fought and acknowledges him as a dangerous obstacle that he must take on without holding back.
* EnergyBall: He uses these in ''Sonic Battle'' and ''Sonic Riders''.
* EvilCounterpart: To Sonic, at first. Then CharacterDevelopment happened, and he became more of a [[AntiHero Neutral Counterpart]] to him; not evil, but not entirely good either.
* EvilLaugh: Does these in the Dark endings of his game.
* FakeMemories: Gerald altered Shadow's memories so that he could carry out Gerald's plan to take revenge on humanity. Fortunately, Shadow's actual memories of his promise to Maria shone through despite this.
* FantasticNuke: His Chaos Blast, which generates an explosion that destroys anything in the immediate vicinity.
* {{Flight}}: When using his [[CutscenePowerToTheMax air shoes]], Chaos Control, or if he's Super Shadow.
* FatalFlaw: Wrath. Shadow has a hard time letting go of his grudges, and his desire for vengeance often clouds his judgment. Also, he's far more cynical than Sonic, which leads to him taking more violent options, and also typically fights to the death, whereas Sonic would just disable his opponents.
* FireForgedFriends: Develops this with several characters.
** When Shadow first met Rouge, the two had quite a TeethClenchedTeamwork. Shadow was annoyed by Rouge's unserious and flirtatious personality and Rouge would often complain about Shadow's grumpy attitude and apathy. Over time, however, the two of them have grown more accepting of their differences and have become more caring about the well-being of one another.
** Was also this with Omega. They were hostile to each other when they first met; however, with time, they grew to care a lot about each others's well-being.
* {{Foil}}: He serves as one to Sonic. Whereas Sonic is the friendly, adventure-seeking hero, Shadow is the cold, deadly serious AntiHero. While they may be on the same side, often their methods of taking action can lead them to clash with one another.
* FourTemperamentEnsemble: Supine.
* ForgotAboutHisPowers: In ''VideoGame/SonicHeroes'' he doesn't assist Super Sonic in the final battle, despite having a [[SuperMode super form]] himself as the previous installment, ''VideoGame/SonicAdventure2'', demonstrated. {{Justified|Trope}} as he had amnesia at the time, but it doesn't explain why everyone else doesn't remind him of it.
* FragileSpeedster: When [[CompetitiveBalance balanced]], he's usually some combination of this and GlassCannon, generally offered as an alternative to Sonic. Notably in ''VideoGame/SonicBattle'', where he's very strong and very fast, but has the absolute worst healing skills of all the playable characters.
* FriendlyRivalry: Develops one with Sonic in later games. Despite his annoyance with the blue hedgehog, Shadow still acknowledges and respects Sonic as a WorthyOpponent, which Sonic finds mutual. He even showed up at Sonic's birthday party in ''Sonic Generations'', after fighting him.
* GeniusBruiser: Though not at Tails's level and mostly downplayed, Shadow occasionally displays some degree of scientific and technological know-how. In ''Sonic Adventure 2'', Shadow was also seen to be capable of being good at creating a master plan. But the "Bruiser" part usually overshadows the "Genius" part.
* GoldenSuperMode: A different, lighter shade of gold than Sonic's, but still gold of some description.
* GoodIsNotNice: His heart is in the right place, but his attitude could definitely use some work. His aloof and somewhat apathetic nature makes him come off as cold and uncaring towards people and his ego and violent tendencies also make it hard to get along with him.
* GoodIsNotSoft: Has no compunctions against lethal force when against an evil foe. The Black Arms learned the hard way that this also means no compunctions against genocide when dealing with exceptional evil. And if the heroes get in the way of his current goals, they're as much of a target as the villains.
* GrumpyBear: Even if he's put his past behind him and moved on to better things, there's no way Shadow will ever cheer up. Even on a good day.
* HatesSmallTalk: Shadow notably gets annoyed with friendly conversations or the like easily, especially when he's focused on a mission.
** Although he is more easy-going with Rouge than with most people, in ''Sonic '06'' when after Rouge asks if he wants to know what the Scepter of Darkness is, he tells her that [[DispenseWithThePleasantries he's only here to rescue her from Eggman's base and nothing more.]] Rouge then lampshades the fact that Shadow is "always business". In ''Sonic Forces'', he also tells her to "cut the chatter" when continuing to talk to him while he's about to rescue Omega.
** In ''Shadow the Hedgehog'', Sonic tries to converse with Shadow several times throughout the games. Shadow is not interested, unless it's about the mission, and believes he's wasting his time.
* HaughtyHmph: He's a frequent user of this trope. It's his way of expressing how arrogant and disapproving he is towards others.
* HeartbrokenBadass: Although it was familial love and he doesn't express it often, Maria's death hit him hard.
* TheHeavy: In ''VideoGame/SonicAdventure2'', while he pretends to act as TheDragon to Eggman, it's his presence that drives the plot, and he is in fact manipulating Eggman for his own purposes.
* [[HeelFaceRevolvingDoor Heel–Face Revolving Door]]: According to his backstory, he was a face, then after a tragic incident, he became a heel. He later became a face for the ending of ''Sonic Adventure 2''. After his revival, he was neutral before settling on being a face.
* HeroicRROD: It's implied at the end of ''Sonic Adventure 2'' that he was overwhelmed by the power of his Chaos Emerald-induced SuperMode, which may be part of why he lost his power and fell into Earth's orbit during the HeroicSacrifice mentioned below.
* HeroicSacrifice: At the end of ''Sonic Adventure 2'', he helps save the world from the Final Hazard, but uses up all of his power before he falls from space towards the Earth. He was initially believed to have died, but ''VideoGame/SonicHeroes'' reveals that he survived, but amnesiac.
* HiddenHeartOfGold: He's a violent, egotistical {{Jerkass}} whose actions border on out and out villainy on occasion, but he's always on the side of justice and he genuinely cares about others, even if it's ''very'' hard to see.
* HumansAreTheRealMonsters: His initial attitude, regarding the humans as heartless due to the tragic incident on the ARK. Despite this, Shadow still put it aside to give them a chance as he promised to Maria.
* ItsAllMyFault: After realising the damage he caused by letting Black Doom manipulate him thinking it would help him get answers to his past, Shadow breaks down from guilt, and even loses hope of fully redeeming.
-->'''Shadow:''' "I am Shadow the Hedgehog. A research experiment gone deadly wrong... I caused so much destruction... I should have never have been created... This is who I am."
* ImageSong: He has more than any character in the series. [[VideoGame/SonicAdventure2 Throw It All Away]], [[VideoGame/SonicTheHedgehog2006 All Hail Shadow]], [[VideoGame/SonicAdventure2 Rhythm and Balance, The Supernatural, Supporting Me,]] {{I Am| Song}} [[VideoGame/ShadowTheHedgehog (All of Me)]], [[VideoGame/ShadowTheHedgehog Almost Dead, Waking Up, Chosen One]], [[GoldenEnding Never]] [[VideoGame/ShadowTheHedgehog Turn Back]], [[CutSong Who I]] [[VideoGame/ShadowTheHedgehog Am]].
* ImmortalImmaturity: He's technically over 50 years old, but is physically the same age as Sonic, and although he's clearly alot more mature and cautious than Sonic, he can act somewhat young in comparision to his psychical age. {{Justified|Trope}}, he's been in [[SealedBadassInACan suspended animation]] for most of those years, and didn't have very much time to mature as a consequence, though the question of whether he ''can'' mature is something of an open one.
* ImmortalityBeginsAtTwenty: Or at [[VagueAge somewhere in the teens,]] at any rate. He generally is portrayed is being of an age to Sonic (who is 15-[[VagueAge ish]]) but thanks to Gerald Robotnik's research, he is ageless and immune to disease. Despite being 50+ years old, however, he technically spent most of that time in stasis, so it's ambiguous if his body really has stopped aging.
* IneffectualLoner: He is used in being a lone wolf since he doesn't put a lot of value on teamwork and of the like when getting things done. It also doesn't help that he doesn't seem very fond of anyone's presence that much.
* InformedAbility: He tends to be {{fragile|Speedster}}, despite his {{Immortality}}. Considering the nature of Gerald's research, it's more of a "absolute immunity to age and illness".
* {{Irony}}:
** Shadow hated GUN for killing Maria Robotnik; he now works for them.
** In ''Sonic Adventure 2'', Shadow acknowledged Sonic as the ''real'' ultimate life form after seeing him use the fake chaos emerald. After he lost his memory, he went back to referring himself as the ultimate life form and viewing himself superior to Sonic.
** He is introduced as Sonic's imposter. Since then, he's had to deal with imposters on [[VideoGame/ShadowTheHedgehog three]] [[VideoGame/SonicTheHedgehog2006 separate]] [[VideoGame/SonicForces occasions]].
* IWasJustPassingThrough: Whenever Shadow helps or saves someone, he will state that it is linked to his personal goals.
** In ''Sonic Adventure 2'', he saves Rouge by using Chaos Control before Prison Island explodes, and then claims that he didn't come to save her, he came for the Chaos Emeralds.
** In ''Shadow the Hedgehog'', after helping Sonic eliminate a number of Black Arms soldiers in Westopolis, he tells him that he didn't come to save him, although Sonic expected him to say that.
* {{Jerkass}}: Arrogant, egotistical, self-serious and violent. Sonic doesn't consider Shadow a "friend" as much as he considers Shadow a rival who might work with him if their goals happen to align.
* JerkWithAHeartOfGold: Despite his aloof, arrogant, and violent tendencies, he's always at the front lines whenever a new threat arises and is capable of working with the heroes too when they're on the same page. He has also shown genuine care for several characters, such as his late surrogate sister, Maria, Professor Gerald, his friends/partners, Rouge and Omega, Amy (who he opened up to after making him remember his true promise to Maria, and helped her find Cream in ''Shadow the Hedgehog''), and even his arch-rival Sonic.
* TheJuggernaut: Simply put, once Shadow gets started on something, he is nigh-unstoppable. Barriers, walls, entire armies are nothing but doorstops to him. ''Nothing''[[note]]Besides a few individuals such as [[DoAnythingRobot E-123 Omega]] according to the BadFuture in ''VideoGame/SonicTheHedgehog2006''[[/note]] is going to slow him down, much less stop him. Best seen in the ending to his story in ''06'', where after being swarmed with Mephiles clones, he removes his PowerLimiter rings, grabs his teammates, and runs through them all.
* KiManipulation: His ability to manipulate Chaos energy allows him to do these.
* KnightInSourArmor: He eventually becomes this after the events of ''Shadow the Hedgehog''. Pretty much his only reason for fighting for the world is because Maria told him to before she died. This was best demonstrated in ''Sonic 2006'' when Mephiles tries to bring Shadow over to his side by telling him that the word will turn on him one day, Shadow simply responds by saying [[ShutUpHannibal he'll fight like he used to.]]
* KnightOfCerebus: Was never a villain (even at his debut) but he is most certainly this for the ''Sonic the Hedgehog'' franchise. Almost anything concerning Shadow is grimly serious and a harsh turn away from the jovial attitude the main protagonist embodies.
* KnightTemplar: In some iterations in the franchise, he is this, and will use ''any means'' to ensure his own sense of justice is carried out, and will kill anyone to illustrate how far he will go.
* LonerTurnedFriend: Over time, he develops a genuine friendship with his partners, Rouge and Omega.
* TheLancer: Even though he's the most recognizable of Team Dark, he functions as this to Rouge, at least in ''VideoGame/SonicHeroes''.
* LargeHam: Mostly in ''VideoGame/ShadowTheHedgehog'' and ''VideoGame/SonicTheHedgehog2006''. He engages in some HamToHamCombat with Mephiles in the latter.
* {{Leitmotif}}: His original one is ''[[https://www.youtube.com/watch?v=tKS4duPqNyo Throw It All Away]]'' from ''VideoGame/SonicAdventure2''. Lately, however, it's been ''[[https://www.youtube.com/watch?v=-mYugbpYaco All Hail Shadow]]'' used as the hero ending theme in ''VideoGame/ShadowTheHedgehog'', as his main theme in ''[[VideoGame/SonicTheHedgehog2006 '06]]'', and as his ThemeMusicPowerUp in ''VideoGame/SonicGenerations''.
* LightningBruiser: When he's not balanced, he's usually this. He's fast enough to keep up with Sonic thanks to his Hover Shoes. And his sheer natural power and skill alone is enough to make the option of fighting him virtually suicide.
* MeaningfulName:
** A Sonic Channel comic suggests that Maria thought up the name Shadow, with a meaning in mind.
-->'''Maria:''' Darkness can be anywhere you go, but a shadow represents the direction in which the light is shining!
** Other sources have suggested his name comes from the program that created him, "Project Shadow," which named as such because of how likely it was to succeed.
* MovesetClone: Plays identically to Sonic in ''Adventure 2'' and ''Heroes''.
* MulticoloredHair: He has black fur with red stripes.
* MysteriousPast: Was first presented as being a doppelganger of Sonic with a mysterious past involving the loss of a loved one. Ironically, this is subverted at the end of his own StoryArc; more about his past has been revealed than any other character in the series, including Sonic himself!
* NiceJobBreakingItHero: While he couldn't've known at the time, Shadow [[spoiler:beating Infinite up and calling him worthless]] sparks [[spoiler:Infinite giving himself the powers of the Phantom Ruby,]] and ''that'' leads to [[spoiler:Sonic being defeated and Eggman taking over the world]]. Cue ''VideoGame/SonicForces''. [[JustifiedTrope Even then, however,]] [[spoiler:[[KickTheSonOfABitch Infinite and his group of mercenaries were already working under Eggman anyway]]]].
* NiceMeanAndInBetween: In-Between. Usually pretty cynical, aggressive and dark overall. Underneath it all, however, he does have a caring side to him and remains on the side of justice.
* NinetiesAntiHero: He never fully played this trope, but he's always sort of leaned on it (his name and color scheme being pretty harsh and a vengeful personality). He shows more traits of this for his own game, though (guns, swearing, and motorcycle riding galore).
* NobleDemon: He's neutral by allignment, seems willing to achieve his goals at all costs and acts with a dark and cynical attitude, but he risks his life to save the world and cares deeply for his only friends.
* NominalHero: Subverted. In ''Shadow The Hedgehog'' where even after the player clears the hero missions, Shadow is [[NotInThisForYourRevolution mainly focused on regaining his memories.]] However, in the Pure Hero and Canon ending, Shadow puts that goal behind him to save the world as he promised Maria.
* NoNonsenseNemesis: Once a misguided nemesis to Sonic, who is now his serious and bitter arch-rival.
* NoSenseOfHumor: He has one, it just doesn't come up much due to the [[DarkerAndEdgier dark tone]] of his games and the situations he finds himself in.
* NotEvilJustMisunderstood: G.U.N accuses Shadow for being evil and blame him for Maria's death. In reality, Shadow tried to ''save'' Maria from ''them'', and strives to protect the planet despite their judgements and mistakes.
* NotSoAboveItAll:
** Although he's far more dark and serious than the other characters, he can sometimes embed the cockiness of Sonic, like when he called himself "the coolest".
** Despite being very distant and solitary, he does sometimes show up at events with the other heroes, such as the racing challenges, and even at Sonic's birthday party.
** Despite being just as [[TheComicallySerious Comically Serious]] as ever when he appears in the 2017 Twitter Takeover, he definitely has his moments:
*** When they get a question about Amy that makes Sonic uncomfortable, he joins Eggman in teasing Sonic over it.
*** He starts to think that they're stalking a fan when they start reading his profile, clearly not that familiar with how social media works.
*** When someone asks what Eggman would do if he wasn't an evil genius, he starts eagerly describing a scenario where Eggman starts knitting and becomes a CrazyCatLady.
*** When one question states that he and Eggman are technically cousins due to Gerald Robotnik contributing to Shadow's creation, he is quick to point out that genetics don't work that way.
*** He's clearly amused at the thought of a [[EvilKnockoff Metal Shadow]].
*** He starts taking notes when Sonic describes how to grow a personal brand... and is clearly taken aback when he mentions [[VideoGame/SonicTheHedgehog2006 making a game that gets slammed by reviewers]].
*** Finally, when all is said and done, he decides that the fans want a new game starring him... and Big the Cat.
* NotSoDifferent:
** Him and Sonic, particularly in ''VideoGame/SonicAdventure2''. While Shadow is more focused and serious, him and Sonic share a lot of similarities, namely their SuperSpeed, [[LeeroyJenkins impatience]], [[SmugSuper an extremely high opinion of themselves]], are devoid of showing or talking about their own feelings, [[ScrewTheRulesImDoingWhatsRight and a strong sense of doing what they feel is right.]] In the aforementioned game, the two spend the entirety of it accusing the other of being the "faker".
** Also to Silver to a lesser extent. Although Shadow is way smarter than Silver and is far more comfortable with being alone, he shares a few similarities to him. They're both determined in doing what they believe is right and are ruthlessly focused, doing whatever it takes to get things done. They also both act as rivals to Sonic and are some of the few to beat him in battle, have white chest fur, and a DarkAndTroubledPast. Both also like to mock their opponents in combat.
* NotSoSimilar: He and Knuckles are often compared to each other due to their supposed similarities. Both are major foils to Sonic who started off as his enemy before eventually becoming his ally. However, Knuckles maintains a rather {{Friendly Rival|ry}} relationship with Sonic while Shadow plays the distant, dissenting rival. Their temperaments are pretty at odds too despite both being serious minded individuals, Knuckles is rather HotBlooded and easily angered while Shadow is far more calm and composed.
* NotSoStoic: He does show his vulnerable side at times.
* OneManArmy: Has decimated entire armies single handily. In ''Shadow the Hedgehog'', depending on which ending a player gets, he could take out the highest members of G.U.N, Black Doom's army, and Eggman's forces, all by himself.
* OutOfFocus: In his heyday, he had more plot and character focus than Sonic himself. In later games, he made mainly cameo and boss appearances, up until ''VideoGame/SonicForces'' where he's one of the main enforcers in Eggman's army, and even has his own campaign taking place before the game starts.
* PerpetualFrowner: You'll only see him either frowning, indifferent, or smirking. That is, until ''[[VideoGame/MarioAndSonicAtTheOlympicGames Mario & Sonic at the Olympic Winter Games]]'', where you can catch him smiling if he does well at an event. Also averted in ''[[VideoGame/SegaSuperstars Sonic & All Stars Racing Transformed]]'', where he'll occasionally fist pump in excitement with a decidedly OutOfCharacter look on his face before starting a race.
* PersonOfMassDestruction: He's a walking mini nuke with the power (depending on the number of Chaos Emeralds he has) to devastate cities and fortresses.
* PetTheDog: He was in attendance for Sonic's birthday party in the end of ''VideoGame/SonicGenerations'' and instead of doing whatever he was doing, he decides to stick around.
* PintSizedPowerhouse: He's the same size as Sonic and can take out towering monsters and giant robots with nothing but the shoes on his feet.
* PoorCommunicationKills:
** A lot of Shadow's conflict with everyone else comes from his inability to just talk with them and accept their help instead of acting like a lone wolf.
** In ''VideoGame/ShadowTheHedgehog'', he apparently never thinks to ask any of his friends about his past, even though every single one of them both know him well as well as found out about his past in ''Adventure 2''.
* PowerIncontinence: The first time he used his SuperMode, he couldn't control it very well and was gradually losing energy. He was able to hold out long enough to help Sonic put the falling Ark back into orbit before ultimately succumbing and falling towards the planet.
* PowerLimiter: His Inhibitor Rings on his wrists and ankles. The rest of this article's description of his power is what he's like with them ''on''. When he takes them off, the increase is substantial enough to allow him to [[CurbStompBattle thrash]] bosses like they were the weakest of mooks. On the other hand, he cannot control such strength and causes massive unintentional destruction with it, so he's hesitant to take them off.
* PowerOfTheVoid: As shown in ''Sonic Battle'' (Chaos Nightmare), he is capable of distorting space-time around him to damage enemies.
* PragmaticHero: What sets him apart from the rest of the cast, Shadow will ShootTheDog as many times as he needs to if it means saving the world.
* {{Pride}}:
** He's confident in his abilities and title of being the UltimateLifeForm, and has no problem with voicing his superiority complex. This doesn't stop him from accepting responsibility and focusing on more important things, anyhow.
** This seems to me the reason he entered the race in ''Sonic Free Riders''. Rouge wanted the money, but Shadow just wanted to beat everyone.
* QuestForIdentity: His entire StoryArc from ''VideoGame/SonicAdventure2'' to ''VideoGame/ShadowTheHedgehog''.
* TheQuietOne: He was never the type to talk much. Particularly in ''Heroes'' and ''Sonic the Hedgehog'' (2006).
* Really700YearsOld: Much due to being an immortal. Despite appearing to be the same age as Sonic, he was created 50 years ago.
* RedAndBlackAndEvilAllOver: Though the "evil" part depends on the game.
* RedEyesTakeWarning: Both in his default state, and when he's in super form.
* RedOniBlueOni: Inverted when it comes to him and Sonic. Shadow has a partially red color scheme, but is [[TheStoic reserved and collected]] most of the time in contrast to the blue, but very extroverted Sonic.
* ReformedButNotTamed: Even if he's fighting along the side of good since ''Sonic Adventure 2'' and aside from having amnesia after his HeroicSacrifice, Shadow still remains stoic, deadly serious, and quite cold towards everyone around him and maintains his rivalry with Sonic.
* ReplacementFlatCharacter: Shadow had taken the role of the stoic and deadly-serious rival from Knuckles who was becoming more of an ally to Sonic over time.
* ReverseGrip: As Lancelot in ''Sonic And the Black Knight.''
* TheRival: He's not the first of Sonic's rivals, or even the last, but he's by far the most recognizable. He still retains this role even after his [[HeelFaceTurn Heel–Face Turn]]. He also had some bouts with Silver in ''Sonic '06'' and the ''Rivals'' series.
* RivalTurnedEvil: He becomes this in his own game if the player completes the last dark missions.
* RollerbladeGood: He moves using rocket skates.
* SealedEvilInACan: He was held in suspended animation in Prison Island after GUN raided the ARK. True to form, Eggman releases him.
* SealedGoodInACan:
** Happens after ''VideoGame/SonicAdventure2'', but in ''VideoGame/SonicHeroes'', Rouge releases him.
** In the BadFuture of ''VideoGame/SonicTheHedgehog2006'', but this time no one releases Future Shadow.
* SanitySlippage: In a few of the "evil" endings, he will go insane after learning more about what GUN put him through, either setting himself to destroy the world or conquer the universe, with an EvilLaughter to demonstrate.
* ShadowArchetype: Pun aside, Shadow is this to Sonic. He is what Sonic would be if he was willing to go through some extremes to get the job done.
* ShipTease: This happens surprisingly often with Rouge [[VideoGame/SonicBattle in]] [[VideoGame/SonicTheHedgehog2006 later]] [[VideoGame/SonicRivals games]].
* ShockAndAwe. His Chaos Blast, in which he either makes an [[SphereOfDestruction explosion of Chaos Energy]] from his body [[labelnote:* ]]As seen in ''VideoGame/SonicBattle'', ''VideoGame/ShadowTheHedgehog'', ''VideoGame/SonicTheHedgehog2006'', and ''[[VideoGame/SonicStorybookSeries Sonic and the Black Knight]]''[[/labelnote]], or shoots out a concentrated version through his hands [[labelnote:* ]]as seen in ''Sonic Battle''[[/labelnote]].
* ShutUpHannibal: He pulled this on both [[VideoGame/ShadowTheHedgehog Black Doom]] and [[VideoGame/SonicTheHedgehog2006 Mephiles]], when they tried to get him to join their respective causes.
-->'''Black Doom:''' You still don't understand, do you? The future we offer is the only option for these humans.
-->'''Shadow:''' I've heard enough! You're boring me to death, Black Doom! '''You're going down!'''
* SignatureMove: Chaos Control. It's not exclusive to him, but he's the most proficient user, and even has several other Chaos attacks exclusive to him. Its uses include: TeleportersAndTransporters, TimeMaster (although actual time travel requires two users), and FlashStep.
* ASinisterClue: His left-handedness can be seen as an indicator of his AntiHero nature.
* SirSwearsALot: Only in [[VideoGame/ShadowTheHedgehog his own game]] and even then, it's considerably mild in comparison to most examples. That said, he does curse with nearly every sentence he speaks.
* SmarterThanYouLook: This is only really noticeable in Sonic the Hedgehog (2006) and it shows how dangerous Shadow can be. He was the only person in the entire game who was aware of what was really going on and sought to put a stop to it. He even convinced Silver that he was being deceived by Mephiles. Unfortunately, Shadow's plan was only 99% effective as one fragment that escaped caused the Last Story.
* SmugSuper: Despite frequently admitting how impressed he is with the combat abilities of his foes and rivals, he remains assured of his superiority in the end. Sonic also rivals him in terms of sheer arrogance.
* SmugSmiler: He sometimes smirks out of smugness or confidence.
* SpiritedCompetitor: Shows this with Sonic recently. It was even mode apparent that even god like beings like Solaris excite him.
* SpotlightStealingSquad: A rather infamous example of this. From his debut to ''2006'', he had just as much, if not more focus on his character arc than Sonic himself. A lot of people easily forget that it's ''Rouge'', not Shadow, who led the team in ''VideoGame/SonicHeroes''.
* StockShonenRival: One of the most archetypal examples of this trope, and almost as known as [[Characters/DragonBallVegeta one of the trope codifiers]]. Contrasting Sonic's upbeat and carefree attitude, Shadow is dour and soft-spoken and tends to prefer solitude than socializing with people. Notably, it wasn't being defeated by Sonic that triggered his [[HeelFaceTurn Heel–Face Turn]], but coming to terms with his past transgressions and learning to move forward with his life.
* TheStoic: He very rarely emotes, but he does let it slip at times, which leads to times when he is NotSoStoic.
* StoryBreakerPower: He can stop time using Chaos Control with no known limits, and this comes with his ability to teleport. Needless to say, he never seems to use this ability to its fullest potential.
* SugarAndIcePersonality: Eventually develops into this over the course of his character arc, forming a strong bond with his teammates and even mellowed down his rivalry with Sonic to an extent.
* SuperheroPackingHeat: Unlike Sonic, he has no qualms using any firearms he could get his hands on.
* SuperMode: Super Shadow.
* SuperpowerLottery: Considering he was made to be the perfect weapon, this is hardly surprising.
* SuperSpeed: Enough to rival Sonic's. Although unlike Sonic, he relies on his Hover Shoes to propel himself at fast speeds.
* SuperStrength: In his [[VideoGame/ShadowTheHedgehog self-titled game]], he can overturn buses and giant slabs of concrete that fell off highways with one hand, as well as punch through solid steel and concrete.
* {{Tsundere}}:
** After his return, Shadow still acts somewhat cold towards pretty much everyone, and borders on a destructive nature. Despite this, he's shown to care about others deep down, also developing a bond with his partners, Rouge and Omega.
** Although Sonic is still his rival, he does respect him to a degree and always shows up to help him when he needs it the most. Lampshaded in ''VideoGame/SonicColors''.
-->'''Shadow:''' Looks like I don't need to be worried.\\
'''Sonic:''' What was that?\\
'''Tails:''' Were you worried if we would get hurt, trying to save the wisps?\\
'''Shadow:''' Hmph!\\
'''Sonic:''' I'll take that as a compliment.
* ATasteOfTheirOwnMedicine: Eggman, who Shadow duped into activating Gerald's scheme in ''Adventure 2'', attempts to inflict this in ''Shadow'', exploiting Shadow's amnesia to trick him into thinking he is an android created by him.
* TheLeader: Of Team Dark, it was Rouge but later Sonic games put Shadow in the front seat of the teams ultimate objectives and tasks, he's pretty much the leader to Rouge and Omega in loyalty and active team based demolition.
* TheOnlyOneAllowedToDefeatYou: [[IWasJustPassingThrough He seemingly pulls this]] off by intervening in a fight between [[VideoGame/SonicTheHedgehog2006 Sonic and Silver]] saving Sonic from a potentially fatal blow, offhandedly making sure he's okay, then fighting Silver in his place. That time, he had a very good reason besides this trope to save Sonic, as he deduced that Mephiles is intending to eliminate the past. Later on in the same game, he expresses silent remorse at [[spoiler:Sonic's death]], but once he finds out that the Chaos Emeralds can undo this, immediately takes on the toughest challenges in order to retrieve the gems.
%%* Troubled, but Cute
* ThenLetMeBeEvil: In ''Shadow the Hedgehog'', the commander accuses Shadow for being responsible for the murder on the ARK, and is judged to be evil by GUN and most of humanity. In the "evil" endings, after learning only the gruesome parts of his past, Shadow goes to revenge against humanity, believing that HumansAreTheRealMonsters.
* TimeMaster: While he's not the only character in the series capable of warping time and space with Chaos energy, he is the most proficient in its usage.
* TookALevelInJerkass: Appears to take a step in ''Sonic Free Riders'', where he seemed to have no problem with helping Rouge steal the cash price from the World Gram Prix, and regarded E-10000B as JustAMachine which is pretty different from the bond he has with Omega, as seen in ''Sonic the Hedgehog 2006''.
* TrashTalk: He can't resist to boast about himself before a fight. He especially does it when fighting Sonic.
-->'''Shadow:''' You're comparing yourself to me? Ha! You're not even good enough to be my fake.
* TsurimeEyes: Compared to Sonic's style of eyes.
* UltimateLifeForm: TropeNamer. He is ageless and has a perfect immune system. If he's never killed by outside forces, he will live forever. And that never happens either, since he's basically able to beat ''anyone''.
* UndyingLoyalty:
** To Maria, keeping his promise to her at all cost, even if it means protecting the humans he despises. He also develops this to his partners, Rouge and Omega.
** Depending on which path you take, Shadow can also have this to Eggman.
--->'''Shadow:''' I cannot betray the doctor.
* TheUnfettered: The key difference between him and Sonic. The latter wears his heart on his sleeve and always acts on how he feels, Shadow on the other-hand will not let his personal feelings get in the way of getting the job done.
* UniversalDriversLicence: He can pilot hang gliders, humvees, motorcycles, and alien hovercraft. He doesn't even own any of this himself, he just finds them lying around!
* UnscrupulousHero: Shadow does what he can to protect the Earth and his people. His intentions are good, but at the same time, he doesn't care what he has to do in order to achieve his goals, which leads to aggressive, and often destructive acts. He also doesn't care what others think of it, which is what separates him from Sonic and his friends.
* UnwittingPawn: In ''Shadow the Hedgehog'', he this to both Doom ''and'', to a lesser extent, Eggman.
* VitriolicBestBuds:
** He and Rouge tend to snark at each other on occasion.
** He also displays this with Sonic as evident in ''VideoGame/ShadowTheHedgehog'' where he is irritated of the blue hedgehog's friendly attitude and adventurous nature.
* VocalEvolution: Creator/KirkThornton's take on Shadow in ''Generations'' and the ''Boom'' sub-franchise was rather deep and gruff, and almost sounded villainous (which fits the latter, as Shadow is [[AdaptationalVillainy much more evil]] in his ''Boom'' appearances). By the time he voices Shadow in ''Forces'' and the 2017 Twitter Takeover, he's hit a voice that's more similar to David Humphrey or Jason Griffith's take on the character, downplaying the deepness in his voice.
* TheVoiceless: In ''VideoGame/SonicForces'', [[spoiler:the Shadow virtual constructs never talk or even vocalize a sound during the main campaign. Considering the Zavoks can do both, it makes the Shadows' lack of speech odd]].
* WithFriendsLikeThese:
** He and Sonic's rivalry seemed to have become slightly more friendly over time, but he's still annoyed of the blue hedgehog's unserious attitude, and their rivalry is still rather intense and agressive when not putting it aside.
** Shadow and Rouge to a lesser extent. They are pretty good friends, but Shadow is rather shown to try to avoid talking to her when they're on a mission, and Rouge doesn't seem to be able to fully accept it, remarking him several times in ''Sonic the Hedgehog 2006''. They also have no problem with fighting each other if they are in the way of each other's goals, as shown in ''Sonic Rivals 2''. Despite that, though, they get along.
* WithUsOrAgainstUs: He doesn't fully play with this trope, but if he feels that you're hindering him from reaching his objectives, he will assume that you're against him and will stop at nothing to attack you. He states this in his game after clearing a mission.
-->'''Shadow:''' Anyone who's against me is my enemy.
* WoobieDestroyerOfWorlds: In ''VideoGame/SonicAdventure2'', his initial goal was to end humanity after G.U.N killed off his family, Maria and Gerald. In general, those experiences are the reason why Shadow is so isolated and reserved. And depending on which path you take in the ''Shadow the Hedgehog'' game, he can also be this. Both in the ''evil'' ending where after learning his DarkAndTroubledPast, goes back to his revenge quest in his debut, or in the ''Slightly Hero'' ending where he feels so guilty about letting Black Doom use him to destroy the humans that he feels like he should never have been created.
* WorthyOpponent:
** To Sonic, but also considers Sonic this. In ''Sonic Adventure 2'', he seemed pretty upset when it looked like [[spoiler:Sonic died in Eggman's trap]] and was impressed when not only [[spoiler:he survived]], but managed to use Chaos Control with a ''fake'' Chaos Emerald. It was at this point Shadow acknowledged Sonic as his equal and how dangerous he is. From then on, Shadow seems to enjoy the occasional bouts he and Sonic have.
** One of the endings to ''VideoGame/ShadowTheHedgehog'' invokes this as well. The route makes Shadow pretty much a complete hero, but if you chose to do the dark mission right before the FinalBoss, you'll be fighting Sonic (and a mech powered by the GUN Commander) and he asks why Shadow is siding with the Black Arms. Shadow claims he doesn't really care about the Black Arms and just wanted a chance to fight Sonic, and winning has him boasting about being the "Ultimate Hedgehog".
* WouldHurtAChild: Simply put, there's no one he won't beat up. [[WouldHitAGirl Gender]] or [[WouldHarmAChild age]] is no deterrent. If you're the target or a hindrance to his goals, then you're just as eligible for a beatdown as the villains.
