So I tried the game and are a little torn, as others mentioned here you can just spam the attack key and bash through the Bosses in now time which is a little sad as I like the mechanic to spin around the Boss to evade his attacks.
What I missed the most were feedback for getting hit and hitting the boss, you just have to read the text to know something has happen even tho there is a little HP bar but it’s too small.
So what I like were the spin of the whole game area. That effect you could explore some more, as I think it could add to the game if it is not overdone. I also liked the enemy visuals, music and the simple menu.
Overall it could be a cool little game, if you tweak some stuff and make the attacks not spammable and add some feedbacks to them.
Anyways, job well done :)