:: video games cheat and cheat codes ::                                            

Playstation - Delta Force - Urban Warfare cheats

Unlock cheat options:
Go to the main menu, then press the following button combination on 
your PSone controller:
Select, Right, Up, Down, Circle, Left, Square, Triangle, Circle. 
This will unlock the cheat menu, with the following options:
Head Size
Infinite Ammo
Invincible mode
Invisible mode
Level
Silent mode