Since you were asking for more specific feedback I’d say focus primarily on the movement system which can feel cranky at times but offers a unique experience and could be rendered even more fun than what it currently is. I agreee with the aestethic of green/blue cubes but if you intend to make it a primary feature of your game try to focus your visual design efforts toward it. Overall, I just want to say this was a good idea, well executed within the jam timeframe, and makes me want to try more of a similar experience! Best of luck to you