For some reason, the white buttons sometimes refuse to be pressed. Also, I need to be able to look at the screen and understand the puzzle. I don't want to have to experiment to figure out which button affects which box. Maybe color coding? Maybe you could draw a line between each button and it's corresponding box. Also, the white boxes do not indicate which direction they move in. Same problem. Overall though, puzzle games are super hard to pull off in a jam, and I applaud you for making something this good.