Challenging game, nice job on this the visuals, audio and atmosphere are really well done! Not only that but it looked to me like the game was a bit different each time you played it, that's really awesome! Gaining abilities like the double jump and wall jump added to the game, (especially that it might be different when you can get these each playthrough) and the variety of level layout was much appreciated, really nice job on this game!
I think to improve it (but this can be hard to get in the time limit of the jam) is that maybe a high score and even a small online leaderboard could keep people exceited to play it, but I didn't finish this for my submission either, and the core mechanics are really well done and that might be more important - excellent game!