If you can find the Nike interactive advert on the 360 dashboard you can play a mini game from within it called Sonic X Vapor. All you can basically do is run and press "a" to jump, then "a" again to double jump... not that interesting however pretty random. I've made a video below, it gets repetitive: A little "obscure" you could say, or just terrible lol. Kept me amused for a few minutes anyway.
