Complete any level
Complete Episode 1 on 'Hurt Me Plenty' or higher
Complete Episode 2 on 'Hurt Me Plenty' or higher.
Complete Episode 3 on 'Hurt Me Plenty' or higher
Complete Episode 4 on 'Hurt Me Plenty' or higher
Complete all levels on UltraViolent mode
Win a Nightmare level in single player
Get 50 kills on Xbox Live
Get 100 kills on Xbox Live
Find a secret area of a map
Find all items in level
Kill all monsters in level on 'Hurt Me Plenty' or higher
Unlock all trophies in DOOM
Beat all the levels in "Knee-Deep in the Dead"
Beat all the levels in "The Shores of Hell"
Beat all the levels in "Inferno"
Beat all the levels in "Thy Flesh Consumed"
Beat DOOM in under 2 hours
Get 25 kills in deathmatch
Get 100 kills in deathmatch
Beat every level on Nightmare in co-operative mode
Get 25 kills with your fists in a single level
Get 3 multi-kills with the shotgun
Finish off a Cyberdemon with the pistol
Kill 5 enemies in 5 seconds with the plasma rifle
Kill only a single enemy with a shot from the BFG
