Enable the console window in the game options. Then, press ~ and enter one of the following codes at the console window to activate the corresponding cheat function.
Effect Code
Get all weapons: wuss
Toggle god mode: god
Toggle no clip: noclip
All weapons: give all
Spawn indicated item: give
Set health level: health
First person view: cg_cameradist -45
Return to default view: cg_cameradist 128
Level select: map
Toggle frame rate display: fps
Disable enemy AI: notarget
