I like the art style for this game quite a bit! I suck at this genre though, so I'm afraid I wasn't able to get particularly far
I do have one piece of feedback though:
Waiting in video games sucks. From elevators to loading screens, making me sit there is annoying. I would recommend changing your main mechanic to let me scale the size of the jump using the up and down keys. I already have to use the arrow keys, so it isn't a one button game anyway. Might as well get the most out of the 4 extra buttons
Congrats on finishing the game jam! Very well done!