I dig the concept! It was fun moving around and felt pretty flavorful!
I did unfortunately find myself breaking the game quite a few times, such as by shifting into the shadow realm after I had died which put the game into a bit of a fugue state until I refreshed! Also, the game did not load any of the wall textures (as well as a multitude of other issues) in Firefox for me, but worked perfectly in Chrome. I wasn’t sure what the numbers when dealing damage or dying represented, as I assumed them to mark kills but they didn’t seem to add up well to that. And I can’t say I was too fond of the experimental mechanic. I get the vibe of wanting the action to sync up with the music, but because strikes seemed so plentiful, nothing else really sync’d up with the music, and the beats to sync to seemed to sparse, I felt that it broke the pace of the game more than it kept it in sync.
But when the game worked, it was a lot of fun! I’d have to experiment more with the shadow shift mechanic to avoid careening off to Neverland, but I was able to flow well through it, movement felt like a blast, and the aesthetics and visuals were on point! Overall, despite it being a little rough around the edges, I had a lot of fun with it, and I think the game has some really good potential! Great job!