Take a trip back in time with over 40 titles from the SEGA Genesis era, including your Sonic The Hedgehog favorites. In classic single-player and multiplayer battles, you'll take down a huge variety of enemies, including Sonic's nemesis Dr. Eggman (AKA Dr. Robotnik), shuriken-flinging ninjas, hordes of altered beasts and the world's greatest fighting champions. Features *THE LARGEST COLLECTION OF CLASSIC SEGA TITLES. All the favorites are here including Sonic The Hedgehog, titles from the Phantasy Star series, as well as three titles from the Streets of Rage series, to name a few. *UNLOCKABLE CONTENT. Unlock arcade games and interviews with the original game developers as you earn Achievements on the Xbox 360 and Trophies on the PLAYSTATION3. *ALL TITLES UPGRADED TO HI-DEF. The classic 2D style never looked so good! Each of the titles has been converted to hi-def (720p) and will be a blast to play using the intuitive controls of the Xbox 360 and PLAYSTATION3 systems. *MASSIVE MULTIPLAYER OPTIONS. Play these classics together with a friend from the same console at home.