I got a bit lost on the level with four red boxes. I wasn't convinced it was possible anymore and couldn't figure out how to restart :(
So, the puzzle mechanics are that you can manipulate the cube but the ball remains where it is unless it's on a red square? Seems interesting, but a bit hard to imagine since the ball moves through the cube (sometimes). Maybe there's a better representation of the puzzle that doesn't require moving through a solid surface that's also relied upon to stop the ball in other situations.