I gave the game another shot and had a very pleasant evening playing it, once I understood you don't have to put the 15 cubes up the parkour. However I only managed to really enjoy the game with the help of the walkthrough. I feel like some things, especially what things you have to do first in order to progress. Some of the things I got to know through the walkthrough aren't very intuitive and should be included in-game. But, I don't wanna be too hard on you, it is after all a game-jam submission, even though this game is scarily full of content.
Thanks for the feedback! I have plans to continue working on this game post-jam, and I agree, the puzzles should be more intuitive. Most puzzle games have a walkthrough, so I thought I would add it just in case people got stuck, but it is unfortunate that most people will just use it to play the game. Out of curiosity, did you complete the game? Or how far did you get? Thanks again for the feedback!