Really fun game! Reminded me of the insurance fraud minigame from Saints Row :)
The art style and music were both really nice, and the air control felt great! I also like that you can finish your last combo even if the timer expires during it, so there's no cap on the amount of money you can earn XD
A leader board for ranking players by the amount of money earned would maybe be cool (even if it's just a local leader board so you can track your own earnings), but otherwise I can't really think of much that I'd change :)
Great job!