Enter all codes at the ''New Game'' Screen. A message will appear if you entered in a code correctly. Hold all the shoulder buttons when entering a code:
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| Press Up, Left, Down, Right, Circle. | 10,000 Bullets Mode | | Press Square twice, Circle twice, Right | All Disarms Open | | Press Right, Square, Left, Circle, Triangle | All Enemies Disarmed | | Press Square, Square, Square, Down, Right. | All Headshot Kills | | Press Triangle twice, Up twice, Triangle | Can't Be Seen | | Press Triangle, Circle, Up three times | Chow Yun Jack mode | | Press Circle, Circle, Up, Up, Square | Double Melee Damage | | Press Left, Right, Left, Circle, Square | Endless Adrenaline | | Press Up three times, Square, Down | Endless Armor | | Press Square, Triangle, Left, Up, Right | Endless Health | | Press Square, Triangle, Circle, Triangle, Square | Endless Human Shield | | Press Right, Circle three times, Square | Endless Shotgun Ammo | | Triangle, Square, Left twice, Circle | Enemies are More Accurate | | Press Triangle, Square, Left, Left, Circle | Harder Boiled Mode | | Press Down, Left, Down, Triangle, Down | Level Select | | Press Down, Left, Down, Triangle, Down | Master Code | | Press Triangle, Circle three times, Left | One Shot Deaths | | Press Up, Up, Down, Down, Up | Precursor Mode | | Press Down, Cicle, Left three times | Stronger Punches and Kicks | | Press Square, Left, Triangle, Up, Down | Wussy Mode |
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