Innovative game, I can't say I've ever played a game where you can only move in one direction and have to bounce of the level bounds to get around. Sure, the audio's missing but that's fine, as a proof of concept this is great! At first I thought the controls were a bit too floaty, but it made sense for the game mechanics, so that's good! As a sort of "advice" for future jams, I would, especially for puzzle platformers, spend far less time on making new levels, and more time on polishing existing ones and the mechanics (audio, animations, tweens) etc.
I couldn't really get past level 5 as I wouldn't get over the center glass block :(