Dr. Eggman has retreated to his new floating fortress with Sonic in fast pursuit. The villain makes his final stand, as he throws everything he has at Sonic, but the heroic hedgehog is more than ready to face every obstacle put before him. At the end, Eggman unleashes a new and improved version of his beloved Death Egg Robot, but since it uses many of the same techniques as the classic version, Sonic is more than confident he can defeat this imposing threat...