Super Sonic

Super Sonic is a special form that Sonic takes on after collecting all of the Chaos Emeralds. In this form, he can trigger Chaos Control, much like his rival Shadow. A mural deep within the Hidden Palace on Angel Island shows Super Sonic and Dr. Eggman fighting over the Master Emerald, which is supposed to take place in "Doomsday Zone". Super Sonic also appeared as Sonic's final smash in Super Smash Bros. Brawl.