You can turn the world upside down. But you can never turn back.
This is an excellent,short 3D puzzle game. All fans of games such as Ico and Portal should try it out, and indeed anyone who wants something a bit different. My only minor criticism is that it could have benefitted from save points rather than check points, especially towards the end. Otherwise; atmospheric design in graphics, levels, sound and a well plotted learning curve make this game a winner.