Select the "Video/Audio" option, then select "Advanced", and check "Console" to enable the console window. Press ~ during game play to display the console window, then enter one of the following codes to activate the corresponding cheat function.
Code:
Result:
give all
all weapons and items
wuss
All weapons
exec <level name>
All weapons from indicated level
show
Disable invisibility
eventlist
Display console commands
god
God Mode
hide
invisibility
killclass <class name>
Kill all indicated enemy class
map <level name>
Level select
noclip
No clipping mode
notarget
No enemy AI
health 100
Restore Health
spawn <item name>
Spawn indicated item
Item names
Use one of the following entries with the spawn code:
