All weapons...
	Full ammunition...
	Full health...
	Invincibility...
	Level select...

Hold [Command] + [Shift] and type 0wpn.

Hold [Command] + [Shift] then type a number that corresponds to a weapon, followed by wpn.

Hold [Command] + [Shift] and type iv.

Hold [Shift] + [Space] and type prime.

Hold [Command] + [Option] at the main menu and choose the "New Game" selection.