This is a really neat little game! The graphics were cool (I especially appreciated the animation for when sliding down a wall), and the movements/attacks felt snappy. The audio cues were great, as well!
I'd probably second the other comment that mentions that the lava is pretty hard to get back out of; wall-climbing would probably be really helpful if it was a little easier to do. Also, I found it rather difficult to avoid the side-swiping hands; since they're just barely tall enough to jump over, if you get it in an awkward height of too tall to jump over and too low to run under, it's very hard to avoid. Maybe I just need to up my skills, haha, but it's maybe a bit difficult for a game jam.
All in all, great work! The core of this is really solid. I'd be excited to see if this is developed further!