Level select:
Press R, L, UP, DOWN, X, Y, B at the main menu.

Level skip:
Press R, L, UP, DOWN, A, X, click Left Analog-stick, press B, A, B, A during
game play. Enable this code immediately after starting a level to complete it
with a "Silenced Assassin" rank.

God mode:
Press R, L, UP, DOWN, A, R, L, BLACK, WHITE during game play.

All weapons:
Press R, L, UP, DOWN, A, UP, X, A during game play.

Full heal:
Press R, L, UP, DOWN, A, UP, DOWN during game play.

Lethal charge:
Press R, L, UP, DOWN, A, BLACK, WHITE during game play.

Slow motion:
Press R, L, UP, DOWN, A, UP, L during game play.

Punch mode:
Press R, L, UP, DOWN, A, UP, UP during game play.

Toggle gravity:
Press R, L, UP, DOWN, A, L, L during game play.

Bomb mode:
Press R, L, UP, DOWN, A, UP, WHITE during game play.

Megaforce mode:
Press R, L, UP, DOWN, A, R, R during game play. Restart the level to remove its
effect.

Nailgun mode:
Press R, L, UP, DOWN A, WHITE, WHITE during game play. Weapons will pin people
to walls when this code is activated.