I really like the concept of this game, but it's too repetitive and becomes boring after you get to know everything you need to do. The only motivation to keep playing is to either beat your high score, which to say is useless, or to unlock more outfits and characters. And because those things are very expensive, it becomes a grindfest without any reward that's worth it.
What would make it worth the while, is if there was an actual ending to the game. Like for say, getting to bounce city like advertised. There's an ample amount of effort been put into the visuals and the general story, and I like how distinctive each of the characters are, but I think it's time to focus on gameplay elements instead to keep players playing.