Really cool! Such a nice well rounded submission for a jam :) One thing that bothered me is how easy it is to slide off the edge since the character moves quickly, maybe you could add that shift + arrow makes you move slower to give some control over that (like in Spelunky). The mechanics are nice, simple and intuitive but fun and allow for good puzzles. I kept thinking that those magic spots that retrieve the spear could double nicely as save points!