Single Player, Xbox LIVE Multiplayer 1-2, 5.1 Surround Sound, HD (High Definition). Upgrade to the full version of Jetpac Refuelled to enjoy a wide spectrum of game features. Provides at least 500% of your recommended daily intake of laser-based alien extinction. Try it now and give your trigger finger a real arcade workout. Also included in the package is the original Jetpac from 1983. Note: PAL TVs must be able to display a 60-Hz signal. There are no refunds for this item. For more information, see www.xbox.com/live/accounts.