Nazo Unleashed is a fan-made WebAnimation trilogy of ''Franchise/SonicTheHedgehog'' by [[AdobeFlash Flash]] animator Chakra-X ([[http://chakra-x.newgrounds.com/ Newgrounds]], [[http://chakra-x.deviantart.com deviantART]], [[http://www.youtube.com/user/ChakraXNewgrounds YouTube]]). It is based around an unused screenshot from ''Anime/SonicX'' that had a mysterious hedgehog with spiked-up quills and a silver coat. The mysterious character was {{Fan Nickname}}d "Nazo", a Japanese word for "mystery".

The premise of the trilogy is that Nazo is a sentient form taken by the negative energy of the Chaos Emeralds. Nazo is a hedgehog because the Chaos Emeralds have gotten accustomed to the forms of Sonic and Shadow. Of course, something made of negative energy like that is going to turn out evil. Nazo then goes around the world collecting the Chaos Emeralds in his plan to become more powerful, leaving much destruction in his wake. Sonic and his friends hear of this and go to take him down, but they are easily defeated. [[TheRival Shadow]] then comes in try to defeat Nazo, but is defeated too. Only when the two hedgehogs use their {{Super Mode}}s together can they take him down, but it turns out Nazo has other plans...

The biggest claim to fame of this series are the masterfully animated fight scenes. Of course, it's quite obvious [[Manga/DragonBall where they got their inspiration]], but it pulls it off very well, as they carry the tension, action, and fluidity as expected of those scenes.

The series has undergone two rereleases by Chakra-X, both of which improve the animation with techniques that he learned after high school; one is the [[http://www.youtube.com/watch?v=yZxseZ1dRMA HD Director's Cut]], which adds annotation commentary and cuts the three parts together as one movie. This version was further remastered as [[https://www.youtube.com/watch?v=g-etGCr7SM4 Nazo Unleashed DX]], which more cleanly upscales the movie to the video format and adds further additions.

Originally planned as a Trilogy, it received a semi-official sequel (not made by Chakra-X himself but made with his approval) in 2011, entitled ''The Return of Nazo''. The story is about....well, [[ExactlyWhatItSaysOnTheTin The Return of Nazo]] after his defeat, whose production eventually stalled. Chakra-X eventually stated that he would like to make a [[https://www.youtube.com/watch?v=IBb2vL_fsII fully official sequel]] 10 years after its original release.
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!!Tropes exhibited by the trilogy:
* AGodAmI: Nazo calls his eventual [[spoiler:Perfect Nazo]] form more powerful than a god.
* {{Animesque}}: The art style is much like that of ''Anime/SonicX''.
* ArtEvolution: Considering the creation of the series took place over several years, it was bound to happen. Chakra X stated he worked on the fight scenes first, and at some points (especially in part 2) [[OffModel it can show.]] However, episode three began work sometime after episodes one or two were done, and the contrast is quite impressive. Compare the rather stiff flash based movements of episodes one and two to the incredibly fluent episode three, which can give even hand drawn animation a run for it's money.
* AutobotsRockOut: Uses some of these themes from the ''Sonic'' series to emphasize the action. To name a few, "[[VideoGame/SonicAdventure Open Your Heart]]", "[[VideoGame/SonicAdventure2 Live and Learn]]", and "[[VideoGame/SonicTheHedgehog2006 His World]]".
* AwesomeButImpractical: [[spoiler:[[FusionDance Shadic]]. Strong enough to take out pretty much anything in the official canon with ease. However, the unification requires an amount of chaos energy to be present that can only be supplied by the Super Emeralds, and because of this, his default state is Hyper form and when his rings run out, he separates. On top of that, since he's both in Hyper form as well as two hedgehogs in one, he burns far more rings per second than a standard Super form.]]
* AxCrazy: Nazo. He eliminated one of the cities where one of the Chaos Emeralds were stored just because he could.
* {{Badass}}: Everyone who engages in action is highly Badass.
* BackFromTheDead: [[spoiler:Tails, thanks to Knuckles reviving him.]]
** [[AvertedTrope Averted:]] [[spoiler: Perfect Nazo would be still alive if Shadic hadn't finished him off...]]
* BashBrothers: Super Sonic and Super Shadow, who take down Nazo working together.
* BeamOWar: [[spoiler:Hyper Shadic engages in one against Perfect Nazo's giant EnergyBall. Nazo then adds more energy to it, increasing its size and Shadic starts to lose. Only with Hyper Knuckles and Super Tails' assistance does Shadic win.]]
* BigBad: Nazo
* BigDamnHeroes: [[spoiler: Several times, but the one that especially stands out is in the aforementioned BeamOWar. Knuckles and Tails FINALLY transform into their hyper and super forms and provide the distraction for Shadic to win.]]
* BigNo: Sonic, when [[spoiler:Tails is killed by Nazo.]]
* BroughtDownToNormal: [[spoiler:After Hyper Shadic apparently blasts Perfect Nazo into a void beyond space, Hyper Shadic then pulls out the extra energy that made Nazo perfect, turning him normal, then blasts him away.]]
* TheCameo: Team Rose, the rest of Team Dark, Team Chaotix, Dr. Eggman, Metal Sonic, and inexplicably; [[spoiler:[[Franchise/SuperMarioBros Mario and Luigi]]]], all make brief non-speaking appearances. [[spoiler:Though Eggman does give a hearty EvilLaugh in TheStinger.]]
* ClassicVillain: Nazo, who fits the mold of a {{Pride}} villain.
* ColorCodedTimeStop: [[spoiler:Perfect Nazo's Perfect Chaos Control creates this aura, and even uses this against Super Shadow's normal Chaos Control.]]
** [[spoiler:Eventually, Hyper Shadic uses a Hyper Chaos Control to equal Perfect Nazo's, resulting in a brawl within a time stop.]]
* CombinedEnergyAttack: [[spoiler:Hyper Shadic powers up his KamehameHadoken by absorbing the rings throughout the world. Sonic's friends and rivals, as well as [[SuperMarioBros Mario and Luigi]], help by raising their rings skyward.]]
* ContinuityPorn: Despite taking a lot from ''Manga/DragonBall Z'', the series still roots itself firmly into the games canon. Chakra-X even identifies certain moves from obscure games in the HD Director's Cut.
* CurbStompBattle:
** Anyone in anything short of SuperMode that engaged Nazo winds up on the receiving end of one of these. Nazo himself getting [[MegatonPunch punched]] [[PunchedAcrossTheRoom out]] by [[SuperpoweredEvilSide Dark Sonic]] somewhat qualifies as well.
** [[spoiler:After Nazo goes "Perfect", even the Super Modes get curb-stomped, and so they have to take it up to [[UpToEleven Hyper Mode]] FusionDance instead.]]
* EarthShatteringKaboom: [[spoiler:Nazo's ultimate goal, at least as far as the Earth is concerned. He can't stand the thought of always being second best to the Master Emerald, so he intends to blow the Earth and everything on it to bits in an attempt to destroy the Emerald.]]
* EnergyBeing: Nazo is made of Chaos Energy.
* {{Expy}} : [[spoiler: Shadic, [[Manga/DragonBall its just so obvious]] ]]
** Of course, Nazo [[spoiler: final form and origins are a ShoutOut to Omega Shenron.]]
* {{Facepalm}}: Sonic does this [[TakeThat in response]] to Shadow [[VideoGame/ShadowTheHedgehog pointing a gun]] at Nazo.
* FanSequel: ''The Return of Nazo'', made by Sunshinethefox, and [[ApprovalOfGod approved by Chakra-X.]]
* FightingSeries
* FusionDance: [[spoiler:Sonic and Shadow, after assuming their [[SuperMode Hyper Mode]]s, Chaos Control into the same place to become Hyper Shadic.]]
* GlowingEyesOfDoom: Shadow's eyes glow red when he's starting to get pissed.
* HandshakeSubstitute: Sonic and Shadow does the fist bump after defeating Nazo in stage 2. Then in the end, [[spoiler:Sonic and Knuckles does this after the defeat of Perfect Nazo.]]
* HealingFactor: Nazo, as a being of Chaos energy, isn't burdened by the limits of biological regeneration and, when given a moment, is able to heal from almost any damage. This is primarily why he was able to survive against both Super Sonic and Super Shadow, who could match and surpass him in a straight fight, but eventually run out of stamina or rings.
* HealingHands: [[spoiler:Knuckles transfers rings to Tails to revive him. Visually, it looks very [[Anime/DragonBall Dende-esque]].]]
* HeroicBSOD: Sonic undergoes one after [[spoiler:Nazo kills Tails.]] Sonic then assumes his "Dark Super Sonic" form to beat Nazo down.
* HeroicResolve: [[spoiler:Sonic and Shadow do their hyper fusion after they get knocked out by Perfect Nazo and after thinking about their friends and remembering Tikal's prayer to the Master Emerald]]
* HighSpeedBattle: Super Sonic and Super Shadow engage Nazo in one, in which the two finally defeat him. [[spoiler:They don't have the raw power to finish the job, though, and he opts to just [[HealingFactor lay low while they celebrate]].]]
* KiAttacks: Or Chaos energy attacks if you prefer. Nazo is literally made of the stuff and displays a wider variety of, and heavier reliance on, Chaos techniques than any of the protagonists.
* KilledMidSentence: [[spoiler:Tails at Nazo's hands, though it's more like killed mid-word (as he was saying Sonic's name).]]
* IAmNotLeftHanded: [[spoiler:Shadow removes his PowerLimiter rings in order to perform a Chaos Blast to take Perfect Nazo down. Unfortunately, it doesn't work, and the effort wears Shadow out and leaves him vulnerable to an attack from Nazo.]]
* IronicEcho: [[spoiler:After Shadow's Chaos Blast fails to harm Perfect Nazo, Nazo tells a shocked Shadow "''I'' am the ultimate life form!"]]
* ItsAllAboutMe: Nazo explains that since he's made of Chaos Energy, it makes him continuously hungry for more and more energy. [[spoiler:He also plans to destroy the world in order to destroy the Master Emerald, since his Pride dictates that he can't be inferior to an inanimate object.]]
* IWasJustPassingThrough: Shadow says a quote to Sonic from ''VideoGame/SonicAdventure2'', stating that he came for the Chaos Emeralds, and not because he saved him from Nazo's attack.
* MadeOfEvil: Nazo, who is made of the negative energy of the Chaos Emeralds.
* ManipulativeEditing: Every character's dialogue except for Nazo is made up of soundclips from various games. It actually makes it sound much more professional this way.
* MeteorMove: As part of the ''Manga/DragonBall Z'' homages, this is used a lot.
* MotiveRant: [[spoiler:After Perfect Nazo absorbs the power of the Super Emeralds, he decides to give Shadic, Tails, and Knuckles an explanation of his plans and his motive before he destroys the world. Justified, since he's now significantly more powerful than even Hyper Shadic, and as he points out, Shadic has a very strict time limit in the form of rings while Nazo is self-sustaining.]]
* MrExposition: See MotiveRant above.
* OhCrap: Shadow gets this when his ultimate attack doesn't work on Nazo. [[spoiler: Nazo himself gets this later on when Hyper Shadic is about to kill him.]]
* OmnicidalManiac: Nazo. [[spoiler:He intends to become the most powerful entity in the universe, and is willing to destroy anything and everything in order to collect energy to achieve this.]]
* PillarOfLight: [[spoiler:Super Sonic generates one during his transformation. Super Shadow finishes his Chaos attack beatdown on Nazo with a Chaos Spear that detonates as one. Hyper Shadic emerges from Sonic and Shadow's FusionDance in a multicolored one. As per the RuleOfCool, it gets used a lot in this series. ]]
* PrecisionFStrike: Sonic and Knuckles use the word "bastard", generated by [[ManipulativeEditing editing words together]].
* PunchCatch: [[SuperpoweredEvilSide Dark]] [[SonicX Sonic]] catches one of Nazo's punches. He then countered with [[MegatonPunch one of his own]].
** [[spoiler:Perfect Nazo even catches Super Sonic's spin dash.]]
* RedAndBlackAndEvilAllOver: [[spoiler:Perfect Nazo, who is dark red and even more powerful than "normal" Nazo.]]
* RivalsTeamUp: Sonic and Shadow, especially in their super forms.
* {{Rotoscoping}}: On the annotes for the HD Director's cut, Chakra-X admits to tracing over scenes from ''Anime/SonicX'' and ''Manga/DragonBall Z'', admitting at its laziness.
* SequelHook: [[spoiler:TheStinger of part 3 has Eggman laughing to himself as he finds one of Nazo's rings. Directly after this in DX, an annotation pops up and hints at what a sequel would be like. Unfortunately, Chakra-X said that he didn't want to follow up on this hook.]]
* ShoutOut: The fight scenes are styled very similarly to those of ''Manga/DragonBall Z''. Chakra-X justifies this saying that Sonic's creators admitted to using ''Manga/DragonBall Z'' as inspiration for the series; Chakra-X just takes the references UpToEleven.
* SuperMode: Used very liberally in this series. First, there's Super Sonic and Super Shadow, then later, [[spoiler:Nazo assumes a dark red form called Perfect Nazo, then Sonic and Shadow assume their [[VideoGame/Sonic3AndKnuckles Hyper Modes]] right before they FusionDance into Shadic, then Knuckles and Tails become Hyper Knuckles and Super Tails to assist Hyper Shadic in defending the Earth from Nazo's earth-destroying sphere.]]
* SuperpoweredEvilSide: Once Nazo induces a HeroicBSOD in Sonic [[spoiler:by killing Tails]], Sonic goes into his "Dark Super Sonic" form from ''Anime/SonicX''. Sonic then calms down and assumes his "normal" SuperMode. This dark state is said to be physically stronger than Nazo or Super Sonic by a fair margin, but, in addition to the altered personality, it's fueled entirely by negative chaos energy so it wouldn't be able to do much more than toss Nazo around.
** Shadow also augments his Super Form by removing his PowerLimiter rings and tapping into Dark Chaos power [[spoiler:as an act of desperation against Perfect Nazo in order to use Chaos Blast. It unfortunately doesn't make Nazo flinch.]]
* TakeThat: WordOfGod says that the scene with Shadow pointing a gun at Nazo's head and Sonic [[WhatTheHellHero facepalming in response]] was one to [[VideoGame/ShadowTheHedgehog his game]].
* TeleportersAndTransporters: Shadow and Nazo use Chaos Control teleportation frequently. [[spoiler:Perfect Nazo has the more powerful Perfect Chaos Control, allowing him to move and perceive so fast that Super Shadow using Chaos Control is barely moving by comparison. Later, [[FusionDance Hyper Shadic's]] Hyper Chaos Control is able to match it point for point.]]
* ThisCannotBe: Nazo says something to this effect right before [[spoiler:Hyper Shadic blasts him away.]]
--> '''Nazo:''' No! Stop! You can't be doing this!
* UpdatedRerelease: Chakra-X released a Website/YouTube[=-=]exclusive update called the "Special Editions" which updated the animation with techniques that he learned later on. He also uploaded an HD Director's Cut that improves the animation further and melds together all three parts as one single movie.
* VoiceOfTheLegion: [[spoiler:[[FusionDance Shadic]], who speaks with both Sonic and Shadow's voices. As a consequence of the two characters' lack of overlapping lines, Shadic doesn't talk much.]]
* TheWorfBarrage: [[spoiler:Shadow [[IAmNotLeftHanded removes]] the [[PowerLimiter inhibitor rings]] from his body while in his SuperMode and uses [[SphereOfDestruction Chaos Blast]] in an attempt to deal with Perfect Nazo. It completely drains Shadow of his energy and the light from the blast engulfs the entire island, but it utterly fails to visibly affect Nazo.]]
* TheWorfEffect: Shown when Nazo fells both [[TheBigGuy Knuckles]] and [[UltimateLifeForm Shadow]] with one blow each, though Shadow could at least evade him and counter Nazo's Chaos attacks. It's noted in the HD Director's Cut that Knuckles' Maximum Heat attack would have done a lot of damage if Nazo didn't K.O. him before it connected.
** [[spoiler:After Nazo absorbs the negative energy from the Chaos and Master Emeralds, achieving his Perfect form, both Super Sonic and Super Shadow (either one of whom are somewhat stronger than standard Nazo) attempt to battle him. Nazo [[NoSell No Sells]] a punch to the forehead and [[PunchCatch catches a Spin Attack]] from Super Sonic, casually backhands a Chaos attack and handily outspeeds Chaos Control from Super Shadow, and survives Super Shadow [[IAmNotLeftHanded cutting loose]] with [[SphereOfDestruction Chaos Blast]] with no visible damage.]]
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