D.N.A.: Dark Native Apostle Cheats - PlayStation 2
Primary Collection of Cheats
Cheat mode
Hold [L1] + [R1] at the title screen. Keep
those buttons held and press [Circle]x2, [Square]x2,
[L2], [Circle], [L2], [Square], [Select].
Release [L1], press [Circle], then release [R1].
Start the game to have all weapons with unlimited ammunition.