Don't harm the Sleeping Villagers.

Throw 42 Chicken Drumsticks.

Defeat Stained Glass Demon with just your arm.

Collect 2,500 coins.

Finish any level outside of Dan's Crypt without defeating any enemies or taking damage.

Complete 'Crash Site'

Defeat 25 enemies with the HE .44 Magnum in Infected mode

Kill 50 enemies

Unlock all trophies in Killzone: Liberation.

Complete mission IV.3 - Confrontation.

Complete mission IV.1 - Infiltration.

Complete mission III.3 - Catastrophe.

Earn 10 gold medals in Challenge Games.