Contra

Another 5 titles have joined the ever expanding Xbox Backward Compatibility program, including Contra Gin Rummy and RoboBlitz

Relive the fun of this arcade classic! Help Lance and Bill rid the world of Red Falcon and all its alien minions! The full version includes access to all levels, CO-OP multiplayer modes, a range of challenging achievements, and the ability to see how your scores compare to others!

3D Ultra Minigolf Adventures

Whether you’re a seasoned putter or just beginning, get ready to tee off for a match of quick and adventurous fun. Choose from four stylish characters and putt your way through 36 fun-filled holes of manic minigolf. Intricately designed courses include elevated greens, bunkers, water hazards and other crazy obstacles set in an array of eye-catching environments--Classic Theme Park, Old Western Ghost Town or Outer Space.

Golf: Tee It Up!

A casual golf game full of gaming goodness. Play with friends over Xbox LIVE with customizable avatars. Change your pants like you have never changed before!

Gin Rummy

Go Gin! Play Gin Rummy, one of the world's most beloved card games! Enjoy challenging variations of the classic game, including Hollywood Gin, Oklahoma Gin and many more. Customize your game with an array of colorful themes, unique decks and entertaining tunes. Knock out players from around the world in a real-time multiplayer match and video chat through Xbox LIVE Vision with up to 4 people.

RoboBlitz

RoboBlitz™ is a humorous, physics-based action game full of inventive gizmos, weapons, and environments. Players take on the role of Blitz, a multitalented robot who must activate an aging Space Cannon in order to save his world from a band of maladjusted space pirates. RoboBlitz features 19 levels of puzzle solving and high-intensity action, powered by the Unreal® Engine™ 3.

As always, you can find the complete list of backward compatible games here