Wow, excellent! Took me a couple of tries, but super fun bossfight.
The music was just great, gets you in a groove of perfectly dodging the attacks and attacking yourself. It's cool that the boss has some timings where you can sneak in a couple charged hits, evokes some Elden Ring feelings.
Really nice work.
Edit: maybe one thing I'd wish for is to be able to attack mid-air, that'd be cool. Maybe you can and I just sucked at timing it? :D