Various cheats
     While playing, press [CTRL] + [ALT] + [~] (tilde) to bring up 
the console, then type any of the following codes:

Cheat code:         Result:

cmd(godmode)        God Mode

cmd(noclip)         No Clipping

cmd(giveall)        All Weapons/Items

cmd(selfsummon)     Spawn Another Riddick

cmd(kill)           Suicide

cmd(cyclecamera)    Switch 1st/3rd Person View