So I ran it on another computer and it ran fine. I wonder what caused the issue on the first one. Anyway, I played it a little bit and it's quite good and challenging. The controls could be a bit more precise though. And the sword reaction time is frustrating. The monsters come fast and fierce, while the first button press pulls out the sword and only the second makes the strike. Also, the spikes hurt from the sides is not fair ;-)
Love the art and the humorous writting.
How is Godot for making games? My kid wants to try it.