I think this is possibly the only buttonless game in this jam, so awesome idea there. It would probably be pretty easy to make a mobile version of this. I also do enjoy flails quite a bit, and it is pretty fun to fling it around.
It did bother me a bit that the red color was used on the health pickup sparkles, but not the health pickup itself. I makes it feels like the lack of a health pickup is more attention-worthy than having one available.
Great Job!