Enter one of the following codes to activate the corresponding cheat function:
Invincibility: iddqd
All weapons, keys, ammo, and 200% armor: idkfa
All weapons, ammo: idfa
Berserker strength: idbeholds
Temporary invincibility: idbeholdv
Temporary invisibility: idbeholdi
Full automap: idbeholda
Anti-radiation suit: idbeholdr
Light amplification visor: idbeholdl
Walk through walls: idclip
Chainsaw: idchoppers
Level select: idclev[episode number][map number]
Toggle full map: iddt
Display coordinates and heading: idmypos
Change music to indicated level: idmus[level number]