Way to save the princess!  Did you unmask the "baron" and see it was really Bowser?  I think it's an easteregg in the game or something.   

Were there any credits at the end with lots of cool names?

Anyhow, great job guys!  Did you learn anything that finally made the dream a reality or was it just like Rainbow Road time trials on Mario Cart?  Just keep running it till you can hop every corner and not wipe?