Thank you for letting me know.
I'm already aware of the first bug, but it's minor and doesn't damage game-play.
I'm not sure how you got stuck on top of the skeletons. They're kinematic bodies, and you can stand on top of them, and jump off their heads. If you were stuck, I suspect it has something to do with how Godot processes physics.
I agree level design was minimal, I didn't have much inspiration for it. I also did a very poor job of incorporating the theme.