Quite good!
I like the animation a lot, good use of 3d as well. I highly anticipate more.
But there are a couple *minor* things I would change. One, that song.. I don't know what it's called, but it is used waaay too much in everything. I mean it fit well, but I dunno, I'm sure there is something else out there that would enhance the animation better. And secondly, you buttons are wonky, remember to use your "hit" frames on your buttons symbols.
Well, nice work... MAKE MORE! :)