Full Health:
Hold L + R + X and press Down(3), A, Up(2), Down, Up, A during game play. A message will confirm correct code entry.

Reload Ammo for Current Gun:
Hold L + R + X and press Right(2), Down, Up, Left, Right, Left(2), A during game play. A message will confirm correct code entry.

Refill Ranged Weapon Ammo:
Hold L + R + X and press Left(2), Up, Down, Right, Left, Right(2), A during game play. A message will confirm correct code entry.

Shotgun with Full Ammo:
Hold L + R + X and press Left(2), Left, Down(3) during game play. A message will confirm correct code entry.

All Items and Weapons Except for Gonzo Gun:
Hold L + R + X and press Down, Up, Down, Left, Right, Left, A, Up, Left, Down, Right, Up, Right, Down, Left, A, Down(3), A, A during game play. A message will confirm correct code entry.

Full Xombium bottle:
Hold L + R + X and press Right(2), Up(2), A, Left, Right, A, Right, Up, Right, A during game play. A message will confirm correct code entry.

Arsenal:
Hold L + R + X and press Down, Right, Up, Left, Down, A, Left(2), Right(2), A, Down, Up, Left, Right, A during game play. A message will confirm correct code entry.

Invincibility:
Hold L + R + X and press Down, Up, Down, Up during game play. A message will confirm correct code entry.

Full flashlight:
Hold L + R + X and press Up, Left, Down, Right, Up, Right, Down, Left, A during game play. A message will confirm correct code entry.

Full blood:
Hold L + R + X and press Down, Up, Left, Right during game play. A message will confirm correct code entry.

Full insanity:
Hold L + R + X and press Right(3), A, Left(2), Right(2), A during game play. A message will confirm correct code entry.

Grenades:
Hold L + R + X and press Right(3), Left(3) during game play. A message will confirm correct code entry.

Molotov cocktails:
Hold L + R + X and press Down(3), Up(2), Up during game play. A message will confirm correct code entry.

All maps:
Hold L + R + X and press Left, Right, Down, Right, A, Left, Up, Left during game play. A message will confirm correct code entry.

Increase evil karma:
Hold L + R + X and press Left(2), Down, Up during game play. A message will confirm correct code entry.

Increase good karma:
Hold L + R + X and press Up(2), Right, Up during game play. A message will confirm correct code entry.

Maximum evil karma:
Hold L + R + X and press Left, Down, Left, Down, Left, Down, A during game play. A message will confirm correct code entry.

Maximum good karma:
Hold L + R + X and press Up, Right, Up, Right, Up, Right, A during game play. A message will confirm correct code entry.

Clean Torque:
Hold L + R + X and press Down, Up, Right, Left during game play. A message will confirm correct code entry.

Psychedelic mode:
Hold L + R + X and press Left(2), A, Right(2), A, Up(2), A, Down(2), A during game play. A message will confirm correct code entry. Repeat this code to disable its effect.

Old movie mode:
Hold L + R + X and press Up, A, Left, A, Down, A, Right, A during game play. A message will confirm correct code entry. Press Start to disable this effect.

Suicide:
Hold L + R + X and press Down(4) during game play. A message will confirm correct code entry.