During gameplay, press the tilde ~ (The key above TAB) to bring up
the cheats console window. Then you can enter one of the codes
indicated below to activate the corresponding effects (press ENTER).
Toggle God Mode : Type god
Full Health : Type heal
Maximum Ammunition : Type allammo
No Clipping Mode : Type ghost
Disable No clipping Mode : Type walk
Flight Mode : Type fly
Set The Gravity : Type setgravity (number)
Set Speed
(Disabled After Zedtime) : Type slomo (number)
Toggle Third Person View : Type behindview (0 or 1)