Complete the following tasks to unlock PlayStation 3 trophy rewards.

Trophy	How to unlock
100% Level (Bronze)	Complete a Level with 100% Kills, Items and Secrets in singleplayer.
Berserker (Bronze)	Kill 20 enemies while in berserker mode on a single map in singleplayer.
DOOMed Lumberjack (Bronze)	Kill 20 enemies with your chainsaw on a single map in singleplayer.
DOOMed to Die Young (Silver)	Complete the Ultimate DOOM single player campaign on "I'm Too Young to Die!" or higher.
DOOMed to Die Young Again (Silver)	Complete the DOOM 2: Hell on Earth single player campaign on "I'm Too Young to Die!" or higher.
Dead and Rested (Silver)	Complete the DOOM 2: No Rest for the Living single player campaign on "I'm Too Young to Die!" or higher.
Evilution Theory (Silver)	Complete the Final DOOM: TNT Evilution single player campaign on "I'm Too Young to Die!" or higher.
Finder of Secrets (Bronze)	Find a Secret in any Level in singleplayer.
Knuckle Sammich (Bronze)	Kill a CyberDemon with your fists in singleplayer.
Level Entry (Bronze)	Complete any Level in any difficulty in singleplayer.
Master Levels Master (Silver)	Complete the DOOM 2: Master Levels single player campaign on "I'm Too Young to Die!" or higher.
Plutonia is DOOMed (Silver)	Complete the Final DOOM: Plutonia Experiment single player campaign on "I'm Too Young to Die!" or higher.
THE BIG GUN (Bronze)	Find a BFG in singleplayer.