Oh it was you first jam. Were you solo too? I'm guessing it wasn't your first game ever made though cause the scope was decent and everything (almost) worked. The balancing was the biggest issue and of course it can be easily fixed afterwards but it's always very difficult thing to get right when you're the only person who has played the game (and probably a lot more than most people ever will). Shouldn't feel too bad about it, I usually fall to the same pit and I have around 30 years of game dev experience and dozens of game jams under my belt. 😅
And the other "big" thing, the inverted controls, might just be a personal preference. Looking at the other comments, I guess I'm not the only one though. I guess it might be more natural for most people to make the character go towards the cursor. But yeah, kinda in the same vain as inverted y-axis on look controls, wasd vs arrows, jumping with up or separate key. Nothing really fits everyone so it's best to try to cover as much as you can.
Everything else was just very minor things that I'd just do differently. But I'm no authority on game design, just throwing in my two cents. 😜