Great game! I could only make it up to 140 — I just kept panicking a little bit when drawing loops, which made me 1) accidentally go much faster and thus become even more panicked and 2) forget that I was vulnerable to my own loops. I could remember that after drawing the loops, but so often I ended up finishing a loop with an inward turn to my demise. Kudos to the decision to make it not be an insta-death game, which would've made it incredibly frustrating. Also good job to make the decision that collisions are an alternate, albeit inefficient, way of killing enemies. Made my mistakes feel less terrible, which kept me playing longer.
Finally — very smart call to make health pickups abundant. Better to make it a little too easy during a jam than too hard, and managing the speed was hard enough!
I'm simultaneously wanting to suggest you make a post-jam version with a more easily-controllable control scheme (not mouse-based, at least not for speed control), and noticing that this scheme is very friendly to my tendonitis, as gentle motions of the mouse and zero clicking is pretty much ideal there. But also I don't think trying to balance to multiple. extremely different control schemes would be wise...tough call.