Enter: W93M 7H2O BCYO PSVB This code gives you 100 health, 200 armor, all weapons, full ammo, the backpack, levels 29-31 finished, and takes you to the last level. Additionally, it gives you three pentagram items that make your laser three times as powerful as the BFG9000. The three pentagram items also enable you to use the three switches in the last level (and closes the gates that spawn the monsters).