Metal Sonic is a robotic version of Sonic the Hedgehog, created by Dr. "Eggman" Robotnik to eliminate Sonic, though all attempts have failed. Metal Sonic first appeared in Sonic CD in an attempt by Eggman to alter the past. Since then, Metal Sonic has appeared as a selectable racer in Sonic R, an enemy in Knuckles' Chaotix, a playable character in Sonic Adventure 2 and Sonic Adventure 2:Battle, the main antagonist and final boss ofSonic Heroes, and an unlockable character in Sonic Rivals.
Metal sonic is a enemey made by dr.eggman and debuted in sonic cd for the sega cd and also appeared in sonic r,sonic the fighters,sonic adventure, sonic drift 2, sonic adventure 2, sonic heros, sonic adventures 2 battle, sonic adventure dx directors cut, sonic gems collection, sonic rivals, sonic rivals 2, he also appears in the comic seris and the tv show the adventures of sonic the hedgehog tv movie.He also appears in brawl as a sticker and when sonic gets the metal box he is called metal sonic but is not the robot form. He can turn into super metal sonic, metal madness, neon metal sonic, annd metal outrage
. Games Playble in sonic r, sonic the fighters, sonic adventure, sonic adventure 2, sonic drift 2, sonic adventure 2 battle, sonic adventure dx directors cut, and sonic rivals. He betrayed eggman in sonic rivals 2 and became good and teamed up with shadow.