Cheat mode:
Type one of the following codes to activate the corresponding cheat function. Note: Cheat mode cannot be enabled in multiplayer mode.

Radiation suit (60 seconds)	idbeholdr
Invisibility (60 seconds)	idbeholdi
Invincibility (30 seconds)	idbeholdv
Computer map	idbeholda
Night vision goggles (120 seconds)	idbeholdl
Strength1	idbeholds
Chain saw2	idchoppers
Level select3	idclev<level number 01 - 32>
God mode	iddqd
Full map4	iddt
All weapons and ammo	idfa
All keys, weapons, ammo	idkfa
View current coordinates	idmypos
Play music from indicated level	idmus<level number 01 - 32>
No clipping	idclip

1. Although this code will last during the entire level, the screen will be blank for thirty seconds.
2. Press 1 to use the chainsaw after enabling the code.
3. Levels 31 and 32 can not be accessed under Nightmare mode.
4. Enable this code while the map is displayed to display the full map. Enable the code a second time to display all opponents and objects. Hold [Ctrl] and enable the code four times during a death match to display the other players.