Here's a simple game for your Windows Phone that has a lot of potential but a decent amount of room for improvement. Robots from Mars is a 3D platformer styled game that has you controlling a robot across the Mars' countryside.
Along the way you have to use your rocket boosters to navigate over obstacles. Your robot is also equipped with a weapon to help defend off any Martians that may appear. The 3D graphics are nice and gives the game a little bit of a retro feel. Robots from Mars is a decent game for your Windows Phone but still has some room for improvement.