This game is really something special. It's easy to play and feels great. The rules are pretty simple for what it is and I haven't seen any concept like this so far in the jam! Great job!
One possible bug I may have come across is a stage required between 19 and 22 but I scored 32 and it said it was perfect? Not sure why this was but hopefully this description can help you if you decide to work on it further. :)