Ooh, I probably didn’t unlock dash then - I ended up playing until the first boss, and couldn’t beat it cause I’m bad xD
For making it feel less rigid, you should first get a solid jump control. It felt a little like I was just moving up, then moving down again. Try seeing what gravity values work best, and make the curve into the peak of a jump smoother so that there is some fine control.
As for the claw attack, was I mistaken in thinking you aim with mouse? For me, it would always aim in a different direction from where I clicked.