Sonic the Hedgehog; Metal Sonic; Tails; Bunnie Rabbot-D'Coolette; Princess Sally Acorn; Amy Rose; Knuckles the Echidna; Rotor; Big the Cat; Cream the Rabbit; Silver the Hedgehog; Dr. Eggman; Orbot
Synopsis
While pursuing Metal Sonic, Sonic and the robot crash through a Genesis Portal and end up on a dead world with Silver.