Dark Sonic

"All right then! Let's test 'em out!"

- Dark Sonic

Dark Sonic (ダーク・ソニック), also known as Dark Super Sonic, is Sonic's darker and angrier form. His first and only appearance was in the 67th episode of the TV show Sonic X when he sees Cosmo scared and Chris is injured by Black Narcissus of the Metarex. The multitude of Fake Chaos Emeralds and Sonic's intense anger allowed him to acheive this state. While in this state, Sonic shows his fury by destroying the two prototype Metarex that Black Narcissus pits against him in order to test his strength and speed.

Powers and Abilities
Sonic achieved this form when his intense rage was manifested by the multitude of Fake Chaos Emeralds that surrounded him. He got his rage by seeing Chris hurt and unconscious (simply knocked out in the 4Kids version), and Cosmo so terrified. As such, Dark Sonic is completely consumed by it. He quickly destroys both of the machines the Metarex were using to test Sonic and takes a sadistic pleasure in doing so (indicated by his mad cackling and evil grin). Sonic powers down when he is calmed by Doctor Eggman who says Sonic normally acts much better and more positive than this also saying if Sonic stays like that, he'll be angry all the time like Shadow the Hedgehog.

The events leading to Sonic's transformation into Dark Sonic are paralleled in Sonic and the Secret Rings, resulting in Sonic becoming the extremely similar Darkspine Sonic, but darker like dark-blue.

Appearance and Colors
Dark Sonic looks similar to Super Sonic except he has a bluish-black color, a blue aura, and no pupils or eye color when he is at his true power. He demonstrates lightspeed, as he tears through a robot multiple times, simply by dashing through it, while appearing only as a blur. He is also very strong as he makes dents in metal, and also caves in a robot's face with one punch.

Personality
Dark Sonic seems to relish the prospect of murdering the two prototype Metarex, as shown by his demonic grin, mad cackle, and angry frown, in this form, Sonic's rage is out of control and has even gained the intention to kill, he however, can still control his action to an extent.

Trivia

 * This transformation does not have an official name. It is most commonly called "Dark Sonic", but some fans also use the name "Dark Super Sonic" due to it's similar appearance to Super Sonic.
 * Right when Sonic turns Dark, his voice seems to get a bit lower.
 * Dark Sonic and Darkspine Sonic are similar in that they are both transformations that were provoked by negative emotions and have a similar appearance.
 * Although Eggman said that he has "never seen you [Sonic] this worked up before", he did not seem to be surprised by or afraid of the transformation.
 * Sonic's black palette swap in Super Smash Bros. Brawl bears a strong resemblance of Dark Sonic in mid-transformation.
 * When Dark Sonic shows his face for the first time, it sounds like the Sonic X theme for Shadow the Hedgehog plays shortly before Dark Sonic takes off into battle.
 * When Eggman comes in he says to not always unleash his anger, or he might end up like another certain hedgehog they know.