Sega has released the announcement trailer for the Xbox Live Arcade and PlayStation Network version of Sonic CD, which was originally released on PC and Sega CD.
Sonic CD was revolutionary for its time, not only for its CD format, but for allowing the player to time travel within a level to a “bad” future (with more enemies and a harder layout) and a “good” future (with fewer enemies), which essentially was a level difficulty mechanic.
Larry Hryb accidentally leaked the game at PAX Prime 2011.
Check out the trailer in the video below.