for me it was mostly the jumping, it seemed a bit inconsistent and i couldn't reliably jump off of platforms while running to their edge
jumping also lacked,,,something, now i'm not sure what, because i think it is both a style and gameplay thing, but i think some tweaking could be done to make it "feel" better to jump / land
currently it feels like raw code for jump and somehow it feels off, but i cant exactly pinpoint why, sorry :[
running into enemies, i think it's fun they fling me back, but sometimes they fling me into a different enemy and then i'm being tossed around with fingers crossed i get out of the loop
unless this is intended, maybe a few invincibility frames after being flung so we can get to a safe position? or keep being tossed around a feature but remove the health, it becomes a different kind of game then with different strategies, so all of that depends on your vision, maybe i could even make use of the enemies to get to other platforms when they toss me
their shooting also felt a bit unpredictable, but i'm sure i would've gotten the hang of it if i kept playing longer
that's all for now i think, if i remember something else i'll comment again, good luck on this and other projects :]