Here is the complete list of exclusive features, only for PS3 owners

• PlayStation® Move and Sharp Shooter compatible
• OVERKILL fully remastered – available in high definition graphics and stereoscopic 3D for the first time ever
• Extended with 2 additional levels not featured in the original game
• Exclusive crossbow weapon
• New baby mutant type
• New Hardcore mode – mutants can only be killed with headshots
• New Classic mode – play through the entire game using only the AMS Magnum
• Exclusive missing reel – an extended boss fight with “Mother” in “OVERKILL”, the game’s final level
• Online leaderboards to track high scores and stats
• Collectibles to grab throughout all levels to unlock bonus materials; comic pages, music tracks, 3D models and 2D artwork
• New PlayStation trophies to unlock
• Improved boss fights in all levels
• New and improved cutscenes using motion capture