Definitely the most innovative platformer I've played so far and I've played more than 150 of the jam games. Though, it was quite difficult to precisely control the cube. The music was alright, but the audio balancing isn't great; I can barely hear sfx over the music.
The pausemenu also looks out of context and doesn't work properly. The crt effect was nice, but it was a bit painful to read the text. I also made a game with a crt effect; it's pretty nice as well. Perhaps you can also add saving player progress and a level select menu. Lastly, I couldn't beat the level pictured below.