Use a Frag Grenade to kill 5 aliens at the same time (in single player).
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Complete any single player level with the waypoints turned off.
Purchase any weapon upgrade (in single player).
Kill 20 aliens with one sentry gun.
Complete any single player level using only the Blaster and Grenades.
Use a Stun Grenade to stun 5 aliens at the same time (in single player).
Complete the prologue in single player on any difficulty level.
Kill 3 burster aliens with one melee attack (in single player).
Kill a stunned alien with a Frag Grenade (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 item upgrade (in single player).
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 multiplayer level.
Kill 5 aliens with one shot of Project X (in single player).
Locate the bodies of Vance and Barnes.
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.
