Well done on your jam game! In particular you did a good job on the sound design, it fits the game well.
The game was frustratingly difficult for me. I got stuck on the third level for several minutes and had to throw in the towel. There we a few things that were really off when it comes to the movement, the floor is too slippery and the double jump only registers within a very small timeframe. Getting these things right is really essential for a platformer game. In the future both of this issues could be mitigated by letting a few people that dont usually play games try your game, that usually gives a pretty good indication of the difficulty.
To end on a positive note, I (seemingly) didnt experience any issues running the game, and the fit with the theme is good. Congrats on finishing your game!