Nice work, this was a lot of fun! The art was great and mechanics all worked well. The boss fight was challenging but doable. Some very minor points: the footstep sfx didn’t feel right, I’m not sure exactly what it is about it but obviously not an issue. One very very weird bug (played on web) was I initially couldn’t move left, only right. So I alt-tabbed to the itch page, confirmed it didn’t say anything about only going right, alt tabbed back and it was fine. A legit suggestion would have been some clearer visual distinction on the spiders, the wall movers had the foot markers but I don’t remember anything distinguishing the hoppers vs the walkers. Again, not a big deal since you go and slash them regardless.
My biggest “complaint” is that I want more! Keep it up!