I liked the mood of the game and the soundtrack is quite relaxing. I got stuck on the 3rd level when I puched the cube into a wall and couldn't move it anymore. So I couldn't block the ray of light with it. Then I replayed the game until that moment and tried pushing it into the gap. The cube went flying into the opposite wall, getting stuck again. That was pretty funny but I couldn't progress past that. Would be nice to have a "restart the level" button