Nazo Unleashed is a fan-made Web Animation trilogy of Sonic the Hedgehog by Flash animator Chakra-X (Newgrounds, deviantART, YouTube). It is based around an unused screenshot from Sonic X that had a mysterious hedgehog with spiked-up quills and a silver coat. The mysterious character was Fan Nicknamed "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. Shadow then comes in try to defeat Nazo, but is defeated too. Only when the two hedgehogs use their Super Modes 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 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 HD Director's Cut, which adds annotation commentary and cuts the three parts together as one movie. This version was further remastered as 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, The Return of Nazo after his defeat. Returning in a new Cyborg form constructed by Dr. Eggman (whom he disposed of once he was done), he begins his quest once again, now stronger than before, the first part can be found here
Tropes exhibited by the trilogy:
A God Am I: Nazo calls his eventual Perfect Nazo form more powerful than a god.
Art Evolution: 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) 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.
Awesome, but Impractical: 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.
Ax-Crazy: 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.
Averted: Perfect Nazo would be still alive if Shadic hadn't finished him off...
Bash Brothers: Super Sonic and Super Shadow, who take down Nazo working together.
Beam-O-War: Hyper Shadic engages in one against Perfect Nazo's giant Energy Ball. 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.
Big Damn Heroes: Several times, but the one that especially stands out is in the aforementioned Beam-O-War. Knuckles and Tails FINALLY transform into their hyper and super forms and provide the distraction for Shadic to win.
Brought Down to Normal: 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.
Anyone in anything short of Super Mode that engaged Nazo winds up on the receiving end of one of these. Nazo himself getting punchedout by Dark Sonic somewhat qualifies as well.
After Nazo goes "Perfect", even the Super Modes get curb-stomped, and so they have to take it up to Hyper ModeFusion Dance instead.
Earth-Shattering Kaboom: 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.
Healing Factor: 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.
Ki Attacks: 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.
Killed Mid-Sentence: Tails at Nazo's hands, though it's more like killed mid-word (as he was saying Sonic's name).
I Am Not Left-Handed: Shadow removes his Power Limiter 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.
Ironic Echo: After Shadow's Chaos Blast fails to harm Perfect Nazo, Nazo tells a shocked Shadow "I am the ultimate life form!"
It's All About Me: Nazo explains that since he's made of Chaos Energy, it makes him continuously hungry for more and more energy. 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.
Motive Rant: 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.
Oh Crap: Shadow gets this when his ultimate attack doesn't work on Nazo. Nazo himself gets this later on when Hyper Shadic is about to kill him.
Omnicidal Maniac: Nazo. 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.
Pillar of Light: 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 Fusion Dance in a multicolored one. As per the Rule of Cool, it gets used a lot in this series.
Rotoscoping: On the annotes for the HD Director's cut, Chakra-X admits to tracing over scenes from Sonic X and Dragon Ball Z, admitting at its laziness.
Sequel Hook: The Stinger of part 3 has Eggman laughing to himself as he finds one of Nazo's rings. Unfortunately, Chakra-X said that he didn't want to follow up on this hook.
Shout-Out: The fight scenes are styled very similarly to those of Dragon Ball Z. Chakra-X justifies this saying that Sonic's creators admitted to using Dragon Ball Z as inspiration for the series; Chakra-X just takes the references Up to Eleven.
Super Mode: Used very liberally in this series. First, there's Super Sonic and Super Shadow, then later, Nazo assumes a dark red form called Perfect Nazo, then Sonic and Shadow assume their Hyper Modes right before they Fusion Dance 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.
Superpowered Evil Side: Once Nazo induces a Heroic BSOD in Sonic by killing Tails, Sonic goes into his "Dark Super Sonic" form from Sonic X. Sonic then calms down and assumes his "normal" Super Mode. 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 Power Limiter rings and tapping into Dark Chaos power as an act of desperation against Perfect Nazo in order to use Chaos Blast. It unfortunately doesn't make Nazo flinch.
Teleporters and Transporters: Shadow and Nazo use Chaos Control teleportation frequently. 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, Hyper Shadic's Hyper Chaos Control is able to match it point for point.
This Cannot Be!: Nazo says something to this effect right before Hyper Shadic blasts him away.
Nazo: No! Stop! You can't be doing this!
Updated Re-release: Chakra-X released a 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.
Voice of the Legion: 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.
The Worf Barrage: Shadow removes the inhibitor rings from his body while in his Super Mode and uses 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.
The Worf Effect: Shown when Nazo fells both Knuckles and 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.
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 No Sells a punch to the forehead and catches a Spin Attack from Super Sonic, casually backhands a Chaos attack and handily outspeeds Chaos Control from Super Shadow, and survives Super Shadow cutting loose with Chaos Blast with no visible damage.