Play as Sonic, Tails, or Knuckles in Sonic the Hedgehog, Sonic the Hedgehog 2, Sonic 3 & Knuckles, and Sonic CD. Plus, for the first time ever, play as Amy Rose in these legendary classic titles Spin Dash your way through numerous zones in Classic mode with the game’s original resolution and limited lives, or the new Anniversary Mode with unlimited lives in revamped widescreen HD Includes previously released add-on content: Extreme Missions, Mirror Mode, additional screen borders, new character animations in menus, and additional music from other Sonic titles Complete missions and unlock Mirror Mode, new stages, challenges, behind-the-scenes content, music player, animated shorts, special stages, and more Experience 12 beloved Sonic Game Gear titles on current generation platforms