Knuckles, the edgiest Echidna on the block, is back! This screamin' wild ride's got everything but a speed limit. Race for the rings, and hoooOOOOLD ON!

Play as Knuckles of one of his new friends Vector the Crocodile, Mighty the Armadillo, Espio the Chameleon and Charmy Bee.

Special power ups enlarge your character to an unbelievable size! But wait - the Bosses are even larger!

NEW bungee challenge! This unique game play lets two pals whip through the scenery as a high-speed team!

25 gigantic rounds of rockin' roller-coaster action with five huge 3-D bonus levels!