Doritos Crash Course was a cute adver-platformer for the Xbox 360 released in late 2010. It was so popular that it even got its own DLC in January. Frito-Lay must be seeing some benefit from the partnership with Microsoft, as Doritos Crash Course 2 is on its way--and soon.
Major Nelson tweeted that the free XBLA download will be coming this Wednesday. The sequel, from developer Behaviour Interactive, will allow you to "unlock new courses, power-ups and vanity items" and share with your friends.
If you've forgotten, this is what the first game looks like: