This game is awesome. It improves over the first game in a million different ways. It has 2 stories, Hero and Dark. Hero lets you play as Sonic, Tails, and Knuckles, while Dark lets you play as Shadow, Rouge, and Eggman. Yes, YOU CAN PLAY AS EGGMAN! Does it already sound cool? Oh, and also, one of the coolest Sonic stages in history, City Escape, is the first level! That should tell you that you're in for a wild ride.