Very orginal...
I like how you can have many options at getting a good score. Should you get the money underneath, or whould you try to beat those bugs and signs?
But amidst all that (and a decent song selection too) the mode transitions took to much time. It shouldn't take 3 seconds to switch from punching to digging. And when you come out of the ground from digging you get a 1 second delay which rams you into an obstacle.
Pretty good game overall.
Nice work!