Super Sonic is a psychotic demon-like entity who manifests himself in Sonic's body under conditions of extreme stress or exposure to chaos energy.

Cruel and utterly chaotic, he lacks the heroism of his counterpart, instead becoming extremely dangerous when let loose. Often taunting his foes before striking, Super Sonic is sadistic, often saving the heroes from danger just for the pleasure of killing them all himself, and prolonging said killings just to make things more enjoyable for himself.