This transformation exists primarily or exclusively within the Post-Super Genesis Wave continuity. Information in this article may not be canonical to the storyline of the games or any other Sonic continuity.
When turning into Chaos Shadow, Shadow's body gains a reddish-yellow hue and a flaming red and yellow energy aura due to the massive amounts of energy that is released. Otherwise, his physical proportions remain largely unchanged.
During his mission to the New Black Comet. Shadow underwent this transformation in battle against Black Death. After a brief confrontation, Shadow succeeded in destroying his adversary using his Chaos Blast attack.
Powers and abilities
In this form, Shadow can tap into an unlimited supply of Chaos energy, turning him into a dynamo of raw, uncontrollable power. This increases all of Shadow's abilities to the point where he could easily overpower Black Death, deflecting all of his attacks through his sheer energy output, and incinerate him with a single Chaos Blast.