S0n1c was an EXE created by RightBurst.
His story takes place in a Sonic 2 cartridge. During the player's/protagonist's playthrough, he somehow damages the console. This leads to Sonic glitching out and switching his AI with that of a Badnik. This results in becoming aggressive to Tails.
S0N1C appears in many forms, this includes a basic Sonic, a glitched Sonic without pupils, an even glitchier version of the Sonic with no pupils, and seemingly a tall mass of code with a few remaining hints.