I loved playing this... I am now just bummed that Im done with it. It doesnt get much better for an app that only costs 99 cents I highly recommend this game.
My only negative comment is in regards to the tilt controls, I wish there was a better way to address that gameplay element as getting the tilt action to work right was a really dificult (and not fun) mechanic to pull off during the hectic race action. In most cases, I just found way to avoid the areas of the tracks that required tilt.
Overall though, great app... now lets get more levels and achievements ;-)
ArchieNorwich about Motocross Challenge - 16 Bits