Simply a very good example of a great jam game. A cool idea, a cute and engaging story, easily understandable with art and not too much reading, enough rewards, 1 polished level, simple mechanic, clear objective... I'll remember this perfect example for next jams :)
I do think a bit more O2 at start wouldn't harm, and it can get a bit boring when you don't know where to go next and just dying repeatedly x) But overall such a great job omg.