Shadow the Hedgehog

Shadow the Hedgehog is one of the protagonists of Sonic: Shackles of Leviathan. A super speedster and Sonic's rival, he is transported off-world as the events of Shackles of Leviathan unfold.

Appearance
Shadow is a slim anthropomorphic hedgehog with shadow fur covering most of his body, a white tuft on his chest, and tan skin covering his muzzle and the inside of his ears. He has several quills protruding from the back of his head, each of which are crimson-striped. as well as a short tail. He wears rocket-propelled shoes, as well as inhibitor rings on his gloves and ankles to restrain his power.

Power and Abilities
As the end result of Project Shadow, possessing Black Arms DNA as well as speed comparable to Sonic's, Shadow is an incredibly powerful fighter, backed by killer instinct and a lack of restraint. He possesses high acrobatic skills and durability, as well as a form of immortality due to the nature of Project Shadow. He additionally boasts mind control resistance and an incredible willpower, keeping him from being brainwashed through conventional means.

What sets Shadow apart from Sonic is his massive proficiency in Chaos Control, almost never requiring a Chaos Emerald to perform the typical feats - teleportation, time slowing/stopping and energy manipulation. His teleportation skills are strong enough to warp multiple individuals at once, and he can use teleportation in rapid succession to chain attacks on enemies. He is also durable enough to use Chaos Blast in repetition despite the explosive toll it might seem to take on him.

Techniques

 * Spin Dash - A technique used by Shadow where he curls into a ball and accelerates forward in a powerful battering-ram motion. This is typically augmented with Shadow's great speed for more impact, and can be "charged" (indicated by particles of light swirling into Shadow) to make the attack even stronger.
 * Black Tornado - Shadow's version of Sonic's Blue Tornado, performed by rapidly circling the foe with a Spin Dash to generate a dark cyclonic vortex and lift them into the air, leaving them susceptible to attacks from all around.
 * Light Speed Dash - As the name suggests, a light-speed burst dash that allows Shadow to devastate whatever happens to be in his path. Extremely useful for getting the upper hand on a foe who can match/surpass Shadow's "base speed".
 * Chaos Control - The harnessing of Chaos energy to perform various techniques, often called out by name.
 * Teleportation - Chaos Control used to warp the user to a different location. Can also be used to warp groups of people at once.
 * Time Stop - Chaos Control used to bring time to a halt for everything but the user and other individuals who can use/are immune to the effects of Chaos Control.
 * Chaos Spear - A golden spearbolt of chaos energy used as a projectile by Shadow.
 * Chaos Lance - A longer, more powerful crimson Chaos Spear used by Shadow with Chaos Boost activated.
 * Chaos Blast - A massive, charged-up explosion of negative chaos energy, fired outwards from Shadow's body.
 * Chaos Blazer - A prismatic-flaming twin explosion surpassing Chaos Blast in power, used by Hyper Shadow.

Chaos Boost
After discarding his inhibitor rings and tapping into his full power, Shadow activates his Chaos Boost, his eyes blanking out and his body taking on a red hue. In this state, Shadow's hidden power is unleashed and his physical strength and chaos powers skyrocket.

Super Shadow
Shadow's super state, Super Shadow, achieved with the power of the seven Chaos Emeralds. In this form, he has light-golden fur and spiked-up quills, as well as a golden aura. His power, speed and energy reserves all skyrocket, as well as durability to the point of invulnerability. Shadow gain the ability of flight, in addition to his chaos powers increasing to their full limit.

Havoc Shadow
The Roboticized form of Super Shadow, born from the machinations of Dr. Eggman. He resembles Metal Sonic's "Neo Metal Sonic" form, but with primarily black-and-gold colors, the latter color a result of Havoc Shadow being empowered by the Chaos Emeralds and perpetually in a super state. This form is significantly stronger than Super Shadow thanks to Dr. Eggman's modifications, as well as rendering Shadow completely loyal to Eggman, but is nowhere near Hyper Shadow's level of power. It is enough, however, to overpower Sonic, Tails and Knuckles all at once.

Havoc Shadow is the introductory antagonist of Shackles of Leviathan alongside Eggman, defeating Sonic, Tails and Knuckles before the spacetime vortex sucks everyone present inside. He remains under Eggman's control, up until he is inadvertently freed by Maels, who acquires Leviathan's power for himself and ends up obliterating Shadow's Roboticized modifications in the process, restoring Super Shadow.

Hyper Shadow
A supreme transformation achieved with the presence of the Super Emeralds. This form is similar in appearance to Super Shadow, though Hyper Shadow flashes in all seven colors of the Chaos Emeralds and possesses a sparkling, prismatic aura. In this state, Shadow completely eclipses his previous limitations of power, speed and durability as Super Shadow and is virtually invincible. Like his other forms, Hyper Shadow is only limited by the amount of time he can sustain the form.