PlayStation 2

Spectral vs GenerationUnlock Two Hidden Fighters07/30/07

Xbox 360

Dante's InfernoUnlock Gates of Hell, New Game Plus and Dante's Crusader Costume02/08/10
Dark VoidUnlock Improved Radar01/20/10
Dead SpaceUnlockables10/15/08
Mass EffectUnlockables11/20/07
Mass Effect 2Unlocked Alternate Color Schemes and Loyalty Skills for Party Members01/27/10
Superman ReturnsAchievements11/17/06
Superman ReturnsUnlockable costumes11/21/06