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

Kill 2 enemies with a single barrel explosion

Finish a level with 200% armor and 200% health

Find a secret level

Find all the secret levels

Kill one of every enemy