Controls are too floaty for my liking, and the hit detection is kinda wonky in some places.
Also, this is a pet peeve of mine, and I know not many other people care, but I don't like it when you can only jump with Up, W or Space (the Space key on my keyboard is broken, and Up and W are uncomfortable)
Otherwise, not bad.
Edit: You can also use Z to jump. But in my opinion, that's even worse, because I have a qwertz keyboard.
I like to you Y or X to jump (Y might seem weird, again, qwertz keyboard)