Great use of the Rhytmic-style that I've seen use WarioWare-type games use before (the TICK TICK TOCK intro to each minigame).
As other's have said the 2nd level is way harder relatively, than the other levels, and I sort of wish the main game had slightly more overall content. Even if it was just a 2nd round at all the levels with one extra challenge added.
Great job and keep up the amazing work.