Grab Galaga Legions (Xbox LIVE Arcade) FOR $4.97 (50% off) over at Amazon!

Amazon will email you the game code after purchase for immediate download via your Xbox 360 console.

Check it out:  Amazon - Galaga Legions

Product Description
Single Player, HD (High Definition). The original Galaga captivated players all over the world, and now... it's back! But this isn't just a boring remake! Featuring table-turning game dynamics, super-slick visuals and mind-blowingly vast waves of enemies, this is the definitive version! Prepare to be hit by the second stick of nostalgic dynamite for XBox 360 Live Arcade by the same team who brought you Pac-Man C. E.! There are no refunds for this item. For more information, see www.xbox.com/live/accounts.