Beat the game in Normal mode to unlock it. This goes for all Prototype games on all systems.
Hard Mode - Beat the game on Normal mode.
Easy+ and normal+
Mercer keeps all his ep, woi and abilities acquired when you start a new game+(easy and normal)
Easy+ - Beat the game on easy or Normal
Normal+ - Beat the game on Normal
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...
View all PS3 cheats!
How to Unlock
Au (40) - Achieve a rating of Gold or better in all Events.
Brain Trust (20) - Complete all Consume Events.
Children Of Blacklight(20) - You've completed the Supreme Hunter Boss Battle.
Cleanup (10) - Kill 15 characters with a single Whipfist attack.
View all XBOX360 cheats!
From the start menu select extras, and then cheats.
Unlockable body surfing ability
Right, Right, Left, Down, Up, Up, Up, Down - unlock body surfing ability
Mercer keeps all of his stats at the start of a new game+.
View all PC cheats!