I think this might be my favorite of the jam games I've played so in terms fun, it's genuinely just a fun game. The art is simple but cute, and it's immediately readable (important for this kind of game). The music is simple but pleasant, and never gets grating. And the levels are a good challenge, but not in a frustrating way; I cleared all but the last two, but I kept wanting to go back and try one more time.
Fantastic job!