Overall it's a fair game. The art style is really well done and fits with the feel of the game. I played all the way to the end, and it is nice to have a game that isn't very difficult. The difficulty is pretty well done, while there are a few levels in the late game that you can get three stars in one run, you usually have to try a few times to get all three stars. For the majority of the game, I enjoyed myself. The game isn't necessarily new or original, but it does what it wants pretty well.
My only major gripe with the game is the fact that even if I get three stars on every level, the game doesn't acknowledge the fact. Personally, if someone invests enough time to get three stars on every level, there could be at least something that acknowledges your achievement (I do realize there is an award for 90 stars).