Overall, looking forward to seeing more of this. I like the style a lot.
Unfortunately, the controls didn't feel great. I was getting a lot of dropped inputs. While on the ground, space wouldn't jump sometimes, even after standing still for a solid second. Some attacks wouldn't happen in the air either. The cooldown/recovery on attacks felt kind of unresponsive, too. I'd suggest adding a buffer or IASA frames to attacks.
Also, the game seemed to softlock after I used the meteor slam into the lava/water. I couldn't move and I wasn't taking damage.
I also had to unplug my controller to make talking to a slime work, which I think is a common GM problem.
Hope it's not too hard to sort some of this out, good luck!