I think you did an excellent job, and I enjoyed playing this game! It was very creative and I liked how the levels got progressively harder. Great job with the menu and instructions as well. It took a while for me to get used to the mechanics, and sometimes it still feels like I don't have full control of the cube. It would also be a good idea to consider a delay at the start of each level before the screen starts moving up to give the player a better chance of not failing the level instantly.