Watchmen: The End is Nigh Part 2 Cheats (PS3)

Unlockable                                        How to unlock

Electric Explosion (Bronze) - Hit 14 enemies with a single electrify armor blast.
Feral Fighter (Silver) - Perform all 8 Rorschach combos within 60 seconds.
Focus Fire (Bronze) - Take down 10 enemies in a row finishing off each of them before doing damage to anybody else.
Friends Forever? (Gold) - Complete the game in Co-op mode.
Gentleman (Bronze) - Complete Chapter III without hitting the ladies before they hit you.
Martial Artist (Silver) - Perform all 8 Nite Owl combos within 60 seconds.
Morally Superior (Silver) - Complete the game in Nite Owl mode.
Ping Pong (Bronze) - Hit at least 4 different enemies while building up a combo.
Primal Scream (Bronze) - Sustain a single rage mode for 60 seconds.

Rorschach VS Nite Owl - Complete part 2 to unlock the Rorschach VS Nite Owl versus mode
Street Justice (Silver) - Complete the game in Rorschach mode.
Unending Combo (Bronze) - String a single uninterrupted combo that's at least 10 hits long.
You Tag 'em - I Bag 'em (Bronze) - Eliminate 10 enemies that your partner has knocked down or thrown in your direction