The UI really turned me off the game. The gameplay itself was reasonably fun, but actually starting the game required going through ages and ages of tutorial and story nonsense. Then going from one level to the next is a lot more cumbersome than it needs to be.

I kept thinking of the original Super Mario Bros. as a contrast. You press start, and it drops you right into the game. When you complete a level, you start the next one. Simple. Sad that Nintendo couldn't replicate that here.