Sonic the Hedgehog

"What you see is what you get. Just a hedgehog that loves adventure. I'm Sonic the Hedgehog!"

- Sonic in Sonic Adventure 2

Sonic the Hedgehog is one of the protagonists of Sonic: Shackles of Leviathan. Renown as a super speedster and a hero of his planet Mobius, he is transported off-world as the events of Shackles of Leviathan unfold.

Appearance
Sonic is a slim anthropomorphic hedgehog with blue fur covering most of his body and peach skin covering his arms, muzzle, insides of his ears, and the front of his torso. He has several quills protruding from the back of his head, as well as a short tail. He is almost never seen without his buckled red-and-white sneakers (thank goodness for that).

Power and Abilities
Sonic would not have earned his moniker of "Fastest Thing Alive" without his astonishing speed. Able to instantly accelerate to speeds surpassing that of sound, as well as outrunning Mach 1, he is incredibly difficult to attack, much less see, in battle. His movements are not restricted to linear maneuvers, either, as he has been shown to run circles around his enemies and make sharp, deliberate turns. His incredible speed allows him to dash over the surface of water, easily evade lasers and other projectiles, and generally render him untouchable to his foes (except for those who match or surpass his speed or possess spacetime-warping abilities).

Despite not shown to have received specific training in the core series, Sonic is an incredibly capable fighter, his high agility and acrobatic skills making him a difficult opponent to keep up with or defend against. His physical strength is not shown to be the greatest, but his speed allows him to magnify the force of his attacks via repeated strikes that build up damage over time. It is speculated that he holds back his power out of reluctance, the same of which can be said of his speed. He typically fights with kicks as opposed to punches in a rather breakdance-esque style, but does not restrict himself to the former.

Sonic is also capable of Chaos Control, whether it be through the use of a Chaos Emerald, a false Chaos Emerald, or even the lack of one. Using Chaos Control grants him access to a variety of reality-manipulating techniques, including energy techniques known as "chaos powers", the slowing/stopping of time, and teleportation. Though not as experienced with Chaos Control as Shadow, Sonic is still familiar with the technique and uses it to great effect.

Techniques

 * Spin Dash - The most common technique in Sonic's arsenal, where he curls into a ball and accelerates forward in a powerful battering-ram motion. This is typically augmented with Sonic's great speed for more impact, and can be "charged" (indicated by particles of light swirling into Sonic) to make the attack even stronger.
 * Blue Tornado - A technique where Sonic rapidly circles his opponent with a Spin Dash to create a tornado and lift them into the air, leaving them susceptible to attacks from all around.
 * Hell Spiral - An empowered, flaming version of Blue Tornado used by Fire Sonic to envelop foes in a blazing cyclone and detonate them.
 * Homing Attack - A lock-on version of the Spin Dash that can be performed in mid-air combat. Repeated use allows Sonic to chain attacks on a single opponent, or tear through hordes by homing in on foe after foe.
 * Insta-Shield - By concentrating energy, Sonic can generate a temporary shield of light to defend against attacks and damage nearby foes. While useful, careless use of the technique can drain Sonic's stamina.
 * Sonic Igloo - A larger version of Insta-Shield used by Ice Sonic, creating a crystalline barrier that can protect allies from incoming attacks.
 * Sonic Wind - Sonic's primary projectile, a cyclone of sharp, sky-blue currents that can be launched at foes to shred through the.
 * Sonic Breeze - A stronger version of Sonic Wind used by Wind Sonic, a cyclone that splits into three larger cyclones for mass damage.
 * Humming Top - A repeated spinning kick, similar in appearance to the Tatsumaki Senpukyaku used by Ryu from the Street Fighter series.
 * Light Speed Dash - As the name suggests, a light-speed burst dash that allows Sonic to devastate whatever happens to be in his path. Extremely useful for getting the upper hand on a foe who can match/surpass Sonic's "base speed".
 * Hyper Flash - Used by Hyper Sonic. An explosive flash of light that obliterates everything around him.
 * 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.
 * 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.

Elemental Transformations
Through the use of individual Chaos Emeralds, Sonic can attain elemental transformations. These elemental transformations can reach even greater heights if individual Super Emeralds are used instead. The elements corresponding to each Chaos Emerald are as follows:
 * Red (Fire): Fire Sonic, Super Fire Sonic
 * Yellow (Electricity): Thunder Sonic, Super Thunder Sonic
 * Green (Earth): Quake Sonic, Super Quake Sonic
 * Light Blue (Wind): Wind Sonic, Super Wind Sonic
 * Blue (Water): Torrent Sonic, Super Torrent Sonic
 * Purple (Mind): Psi Sonic, Super Psi Sonic
 * White (Ice): Ice Sonic, Super Ice Sonic

Each form grants Sonic a high level of respective element manipulation, allowing him to augment his techniques and use new ones unique to each elemental form. Though none of the standard forms are as powerful as Super Sonic, they are useful in a pinch, or when not all of the Chaos Emeralds are on hand. The Super Emerald versions, however, surpass Super Sonic in power.

Super Sonic
Sonic's super state, achieved with the power of the seven Chaos Emeralds. In this form, he has an appearance similar to that of a Super Saiyan from Dragon Ball, possessing golden fur and spiked-up quills, as well as scarlet eyes and a golden aura. As Super Sonic, he possesses an astounding level of power and energy, drastically increased speed and stronger access to Chaos Control. He can fly with ease and bears a form of invulnerability that can only be overcome by foes of ridiculously high battle power.

Dark Sonic
Also known as Dark Super Sonic. A dark form initiated by mass accumulation of negative energy from Chaos Emeralds, turning Sonic's fur completely black and covering everything except for his blanked-out eyes. His quills stand up, similar to that of the normal Super Sonic form, and he possesses a pitch-black aura. While unclear if this form is stronger or weaker than Super Sonic, it causes Sonic to become unhinged and gives his techniques a certain ruthlessness to them. While he is conscious of his actions and not "berserk", Sonic loses some of his rationality and pays no concern to killing his opponents.

Hyper Sonic
A supreme transformation achieved with the presence of the Super Emeralds. This form is similar in appearance to Super Sonic, though Hyper Sonic flashes in all seven colors of the Chaos Emeralds and possesses a sparkling, prismatic aura. In this state, Sonic completely eclipses his previous limitations of power, speed and durability as Super Sonic and is virtually invincible. Like his other forms, Hyper Sonic is only limited by the amount of time he can sustain the form. Few opponents are able to outclass Hyper Sonic's power, and typically do not live long before they can expand upon their advantage.