Fun game! The sound of skulls popping was very satisfying. I died a couple of times before I was able to beat the game. I didn't kill the slime because... I didn't see it? It was pretty clear what I was supposed to do to get healing but.... I only ever saw the slime in the death/winning screen. Conceptually fun idea though! Pretty sure I couldn't bring myself to hurt it if it *was* there, so personally I don't think I lost much.
Also, as a short person it was a little tough to hit the skulls coming at me from so high up. Dropped my mace a good few times, too.
I also really liked that I could clearly see the goal through the windows as I progressed. Made it feel more like a real place than a series of rooms.