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.
Shadow first reached this transformation when he allied himself with Super Sonic to stop the Biolizard from destroying Sonic's World with the Space Colony ARK, an act which caused him to seemingly perish after using all his energy and falling toward the atmosphere. He later transformed again to do battle with Devil Doom. Super Shadow was able to destroy Devil Doom, ending the Black Arms invasion of Sonic's World.
The Last time Shadow used this form was during an aborted timeline where Solaris attempted to destroy time. He stopped the demigod with Super Sonic and Super Silver. These events were, however, erased from the timeline.
Powers and abilities
While in his Super-State, all of Shadow's innate talents are multiplied many times over, giving him increased speed, strength and reflexes. Like the traditional Super-State, Shadow gains new abilities too, including high-speed flight and virtual invulnerability to harm.