A fun puzzle adventure game with magnificent audio design. I especially love the little music cue that informs you that you have solved the puzzle before you actually see it done. The traveling in and out of worlds is mind-bending, but all the puzzles have an innate logic to them, and players are never left without any idea on ow to proceed. The only frustrating puzzles are the ones involving shooting orbiting objects which require timing precision more than creative thinking. 20 minutes in, I gave up on making sense of the narrative. I assume there is a story told through environment, but I did not catch on to it.