Drive a car using cursor keys through a movie running across Google Earth in order to unlock the other trailers all in a YouTube channel.
That doesn't sound overcomplicated at all....
As you drive around, you can unlock extra video clips from the movie by performing specific tasks such as reaching (and holding) 100+ mph, performing a variety of jumps, traveling over 6 miles or crashing the van enough times. The collision detection with the 3-D buildings is very impressive and makes it pretty easy to crash. [from Fortune]