Use a text editor such as notepad to edit the "config.cfg" file in the "\data\cfg" directory in the game folder. Find one of the following lines and change the "0" to a "1" as indicated to activate the corresponding cheat function.

Effect	Line
Disable enemy AI	set ai_disable 1
Disable game physics	set physics_disable 1
Display frame rate	set cg_drawFps 1
Display information about targeted enemy or object	set cg_drawTarget 1
Display weapons statistics	set cg_drawWeaponStats 1
Extra options in various menus	set developerMenu 1
God mode1	set god 1
Stop enemy explosions	set gibs 0
Time that corpses remain interactive; 4 is default	set corpseLifeTime [number]
Unknown	set showNavForPlayer 1
Unknown	set wheelSpeeder 1
View debug boxes on objects	set r_debugVisBox 2
View debug information about meshes	set r_debugVis 1