Sonic’s enemy Doctor Eggman, or Dr. Ivo Robotnik (Jim Carrey), is joined by his grandfather Professor Gerald Robotnik and Shadow to take control of the Eclipse Cannon. However, with some classic ...

Press A to play as Dr. Eggman. NOTE: Both players can not be Dr. Eggman at the same time. Press Start on Sonic, and he'll change to Metal Sonic. Press A to play as Metal Sonic. NOTE: Both players ...