Interesting ideas and take on cuphead style gameplay. The health display for the boss (the lightbulbs breaking) is actually ingenious.
Having to manage the weapon changes mid fight is smart, though some felt cumbersome to use, I did not like the hammer. But I suppose the point of the game to deal with what the wheel gives you.
Overall the boss's design is pretty clever, the hands have a decent range of attacks which for the most part are all fair to avoid. The perspective shift for the mid-phase sections is good and adds some 'depth' to the game.
The controls felt a little clunky, but nothing unmanageable.