This was really enjoyable! My only complaint is that attack animations is from where your character is facing vs where the camera is facing, so it was a bit difficult to get used to attacking.
The simple upbeat music was fun, and skeletons are always enjoyable!
And for the theme, I really liked how you unlock abilities after you die, even if you still have to kill those foes first, makes it feel like a rogue like game where you get the stuff at the end of the run.