While playing, press [F2] to bring up the input box, then type any of the following cheat codes:

healme # - Add health (# is a number 1-100)

maxammo - Max ammo for current weapon

superdeform - Big feet and head mode

flowerpower 1 - Changes blood to flowers and blood splatter on walls to lip marks

playersonly - Only player can move (may freeze game if active during flashback)

suicide - Suicide

quit - End game