Start game as usual, in game - bring up the console with ~ (TILDE) and
enter the following codes (NOT CaSe SeNsItIvE):
NITRO GOD - toggle 'godmode'
NITRO GIVEALL - toggle 'all weapons & ammo'
NITRO GIVEMONEY - toggle 'get 999,999 cash'
NITRO KILLALL - toggle 'kill all enemies instantly'
NITRO FLY - toggle 'flymode' (fly above surface)
NITRO GHOST - toggle 'ghostmode' (fly above & beneath surface)
NITRO REFRESH - refresh health
NITRO CHANGELEVEL - advance to next level
NITRO SPEED X - X equals movement speed 1 (normal) to 10 (fast)
/Team PiZZADOX