Kill 5 aliens with one shot of Project X (in single player).
Each and every trophy has been awarded. Congratulations!
Complete all single player levels 1-5 on elite difficulty.
Find all 'secret' collectibles.
Take 500 damage without dying on 'Determination' single player mission.
Complete 'Vengeance' single player level on Veteran mode in 17 minutes or less.
Purchase any weapon upgrade (in single player).
Purchase any item upgrade (in single player).
Kill a stunned alien with a Frag Grenade (in single player).
Complete the prologue in single player on any difficulty level.
Kill a sentry gun with the Blaster.
Achieve a time of 8 minutes or better on any multiplayer survivor map.
Complete all single player levels 1-5.
Complete the prologue, all single player, co-op assault and survivor maps on any difficulty.
Complete any co-op assault map over PlayStation Network.
Complete any single player level using only the Blaster and Grenades.
Kill 3 burster aliens with one melee attack (in single player).
Kill 20 aliens with one sentry gun.
Complete any multiplayer level.
Complete any single player level with the waypoints turned off.
Locate the bodies of Vance and Barnes.
Use a Stun Grenade to stun 5 aliens at the same time (in single player).
Use a Frag Grenade to kill 5 aliens at the same time (in single player).
Collect all logs through out the game.
Stay alive for 8 minutes or better on any of the Survivor mode single player levels.
Kill 250 aliens on any of the Survivor mode multi player levels.
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