Unlock body surfing ability
From the main menu, select extras and go to cheats.
Effect Code unlock body surfing ability Right, Right, Left, Down, Up, Up, Up, Down
Contributed By: Jagglenuttz.
Start a New Game Plus on a different difficulty
After unlocking the New Game Plus option for Easy Mode or Normal Mode, it is possible to start a new game plus on a difficulty setting for which it has not been unlocked. To do this, under New Game, select Easy plus or Normal plus, whichever is applicable. Instead of saving as prompted however, press circle to back out of your selection, and then select a difficulty for which the New Game plus has not been unlocked. Save the data when prompted to begin the game. You will begin the game with New Game plus status, without having unlocked it for the corresponding difficulty setting.
Contributed By: devonm042690.
Easy+ and normal+
Mercer keeps all his ep, woi and abilities acquired when you start a new game+(easy and normal)
Unlockable How to Unlock Easy+ Beat the game on easy or Normal Normal+ Beat the game on Normal
Contributed By: DgtCloud.
Beat the game in Normal mode to unlock it. This goes for all Prototype games on all systems.
Unlockable How to Unlock Hard Mode Beat the game on Normal mode.
Contributed By: tane99.
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