While playing a game, press ~ to display the console window. Enter one of the following codes, then press [Enter] to activate the corresponding cheat function:
Result
Cheat Code
God mode please god
All weapons and ammo please giveall
Kill all monsters on level please killall
Open all doors please open
Invisibility please invisible
Restore energy please refresh
Flight mode please fly
No clipping mode please ghost
View all messages please tellall