Cool game! The take on the theme isn't very creative, but that's fine, because the platformer movement is really solid. The idea of "challenge coins" is really good. Minor nitpick: it wasn't immediately obvious that you can wall jump of the level border too. I would maybe smoothen the difficulty curve a little bit, it's giving rage game vibes too much sometimes right now, but tbh that's understandable given the time constraints. Anyway, solid game!