The game is lacking some enhancements that would have made it even greater. For example some online score capability aside from the Facebook interface where you can connect and post your score. The game could also do with more than just the one level game that it is. Perhaps some other mode, some head-to-head or some form of challenges.
Ah well, you can't have everything you want now can you? At least you can slam the Boos about and feel better, if that's your sort of thing.