The idea is a good one. I liked the mechanics of the challenges, The jump can be adjusted or you can create an item to collect, which has a double jump for example. It's just an idea that came to me and I wanted to share it with you. The game has great potential. Nice job !

First off I get this was a game jam so take all my feedback with a grain of salt. The first thing I noticed was that the main character felt a bit floaty to me, and would probably feel a little better to play if they had a little more gravity to them. The other thing is that obviously it would be nice if there was a background and other environmental elements to tell a bit more of a story. I actually really dig the main character and it would be nice if there was more context on where we are. 

So about the solution (or what I think the solution is) there could definitely be a bit more of an impact to figuring it out. What I think is the solution (quitting and playing again) leads to a blank screen so I am still not sure if this is the solution or a bug. If I am right, there should be some indicator that I did indeed figure out the way out (even just some text would be nice). If I am wrong, I honestly don't know what the solution could be. Another thing is that it would be nice if you lead the player to the solution a little more.  Right now I felt like I was clicking random buttons until I found something that worked.  Even just some cryptic riddles throughout the game would make me feel a sense of accomplishment when I eventually figure out what it is. I do like the idea that the only way to escape the game is to quit, but I just want a little more to feel satisfied with this answer. 

Anyway like I said take this with a grain of salt. It is a huge accomplishment to complete a game in just a week and you should be proud of the work you have done. If you do decide to update this game later, I would be interested to see where it could go.  

The music was only playing out of my left ear for some reason and the level-design felt a bit by-passed due to the jumping of the character so could improve there.

Otherwise, the game worked but the UI, movement, animations etc could all really polish up the game.