The Egg Destroyer is the fifth and final boss of Sonic Rivals. At the end of Meteor Base Zone, Doctor Eggman Nega (still disguised as the normal Eggman in Knuckles and Sonic's stories) has strapped his camera to a giant spacecraft. Fueled by the cards of Amy Rose, Rouge the Bat, and the Master Emerald, he's set to destroy the world by taking a picture of it with the camera.