I love the music! The boss design is really neat! I like that the wheel gives you different options to attack the hands with! The perspecitve is a bit difficult to tell exactly where I am in relation to the hands at certain moments, but it feels like the hitbox is fairly forgiving which is nice! Definately has a great 'cuphead' vibe going for it!
I will say a downloadable version would be nice, as Godots Html can be a bit finikey sometimes (the game froze on me a few times)
Overall fantastic work! It has a nice theme to it, the art, music and sounds all fit with a coherent vibe, and it was a really fun experience! A really solid game jam entry!! :)