With this strategy you can kill monsters from Psychophobia wad in only some seconds. This includes some time to prepare.
Step 1 : Go to options, gameplay options and select Infinite Ammo
Step 2 : Choose the Dynamite and the Detonator and start filling the middle of the arena
Step 3 : Summon monsters and make them follow you. When they got into the dynamite zone press the detonator and they will be killed: thumb|370px|right|Dynamite Trap Video