Halo 2
Unlimited ammunition
Equip either the battle rifle or shotgun. Start shooting yourself in the foot until you lose all health and die. Then, whip out two SMGs (dual wield) and do the same. Repeat this process about five to six times and you'll never have to reload your ammo, or reload a clip.
Hidden DVD message
Pop in the bonus DVD if you have it. Don't touch the controller and watch the Marine lose his temper. He'll do three routines before he goes back to the first.
Hidden DVD art gallery
Pop in the bonus DVD if you have it. Hold Left when you're viewing the main menu until you see the art gallery appear.
