Nitro Family [cheats] 
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