Unverified. Directions will be on the D-pad (always the default location for directions). Pause while playing. Hold R-TRIGGER and input the codes for:

Full Health -- DOWN, DOWN, UP, UP

Player Invulnerable -- RED, GREEN, BLUE, YELLOW

Ally Invulnerable -- RED, YELLOW, GREEN, BLUE

ExtraSkill Points -- UP, UP, DOWN, DOWN

Full Ammo -- UP, LEFT, RED, DOWN

All Enemies Suddenly Have Heart Attacks And Die Without Paramedic Aid -- DOWN, UP, RED, RIGHT

Go en-Reich Yourself; use German Weapons -- UP, DOWN, LEFT, RIGHT, GREEN

American-maid if you know what we mean and we think you do; use American weapons -- UP, DOWN, LEFT, RIGHT, BLUE

51st Stated; Use British Weapons -- uP, DOWN, LEFT, RIGHT, YELLOW

Max Skills -- LEFT, UP, RIGHT, DOWN

Player gun altered -- LEFT, RIGHT, BLUE, YELLOW

Rapid Fire -- DOWN, DOWN, DOWN, DOWN

Life Increase -- GREEN, YELLOW, LEFT, LEFT, RIGHT

Submitted by dezz, Mike Alphamp5