I liked the level design, I appreciated that levels seemed to loop around back to the goal, rather than making me backtrack. I did feel that the obstacles weren't challenging because I could change size at any time. It would have been interesting if the player needed to reach some position first before gaining access to a new size, or if there were obstacles that would allow the player to pass through, but they would block the variously sized boxes you needed to carry. I also liked the music selection, not sure if one of you composed it.