Great art and music. And in general it was quite fun.
My main feedback would be, that wheelspin felt a bit weird kind of mechanic in such type of game, because player can't influence it, and game is not a roguelike, when you can just reset (well, yeah, technically you can) the bad run cuz of bad luck, so you have to fight the boss with buffs/debuffs you've got, which in theory can be frustrating, if for example you've got only boss buffs and you have no way to revert it. Perhaps you could have 1 spin re-roll, after you've lost to the boss, then I think it can be much better, because then you aren't stuck with the buffs you've got, but can try your luck again.
But well, game isn't that long, so in the end it didn't matter that much.