After the release of "Ape Escape 3", Sony Computer Entertainment Europe showed interest in publishing "Ape Academy 2" and '; however, Sony Computer Entertainment America showed more interest in developing its own game. "Ape Academy 2" was released in 2006 for the PlayStation Portable to mixed success and sold very well in Japan, entering the "Best of" category, but failed to perform well in Europe, due to Sony focusing on "Million Monkeys". "Million Monkeys" was released in Japan in July 2006, making it the last official PlayStation 2 game in the series. The game was planned to be released in the United Kingdom in late 2006, but the game was postponed and later canceled. Its impact in Japan led to the inclusion of this incarnation of Spike in "PlayStation All-Stars Battle Royale" in 2012. In late 2006, "PipoRacer" was released in Japan for PlayStation Portable. In 2008, Japan Studio and h.a.n.d. developed '. It was never released outside Japan.