Phoebit Software is offering Monkey Madness over at the Windows Phone 7 Marketplace. The platformer game has you controlling your monkey with the phone's accelerometer. You work your way through a moving maze/ladder to reach the top of the screen. Jumping is controlled by tapping the screen to leap through openings in the walkways or rungs in the ladder.
Along your journey you try to collect bonus items and avoid dangers such as snakes and ghosts. If one of the monsters catch you, you will loose one of your three lives. You also need to be careful not to bump your head on the walkway above or fall through the gaps in the moving rungs. You won't loose a life but your monkey will be stunned for a short period.
Monkey Madness has an online leader board to compare your scores with others. As you advance in levels, the game becomes more challenging and you really need to stay on your toes as the direction of the rungs will change.
There is a free trial version available for Monkey Madness with the full version running $.99. You can download either here (opens Zune) at the Marketplace.