If you like mario-style genre games then this is for you. Mark The Mechanic
is an Xbox Live Indie game, available for 80MSP.
The first level is very much like super mario, you have to collect coins, and dodge the enemies in order to get to the end of the level. You can jump really high which is fun.
You can 'grip' onto bottoms of platforms too.
Once you get onto the second level things get more interesting. The background scenery looks amazing, there are more enemies and what not.
This game is definately worth 80MSP