Summary: Echochrome (stylized as echochrome), released in Japan as Mugen Kairō (無限回廊), is a puzzle game created by Sony's JAPAN Studio and Game Yarouze, which is available for PlayStation 3 from the PlayStation Store and for PlayStation Portable (PSP) on either UMD or from the PlayStation Store. Gameplay involves a mannequin figure traversing a rotatable world where physics and reality depend on perspective. The world is occupied by Oscar Reutersvärd's impossible constructions. This concept is inspired by M. C. Escher's artwork, such as "Relativity". The game is based on the Object Locative Environment Coordinate System developed by Jun Fujiki—an engine that determines what is occurring based on the camera's perspective. The game was first announced at E3 2007. The game was released in Japan on March 19, 2008 on UMD and for download on the PlayStation Store with a demo released on the Japanese PlayStation Network on March 6, 2008. The North American release of Echochrome is only available on the PlayStation Network. A demo was released in North America on April 24, 2008. It was followed by the full version on May 1, 2008. Updates that rotate the set of user created levels occur periodically. The game was released as a UMD in Europe on July 4, 2008, with a PlayStation Network version following on July 10. Echochrome was also a playable arcade mini-game in the Bowling Alley/Game Space of PlayStation Home. In 2011, Echochrome was released on Blu-ray as a part of the compilation Move Mind Benders with PlayStation Move support along with Lemmings and Tumble. PlayStation 3 Trophies were made available for the console version in North America via a patch on December 11, 2008, which features 10 trophies. It includes 2 gold trophies, 1 silver trophy, and 7 bronze trophies. Europe and Japan have now received the trophy patch. A sequel to the game, Echochrome II, was released for the PlayStation 3 utilizing the PlayStation Move in December 2010. A spinoff was released on the PlayStation Portable in 2009 titled Echoshift.