Super Mario Galaxy 2 (スーパーマリオギャラクシー2, Sūpā Mario Gyarakushī Tsū) is a platforming video game developed by Nintendo EAD and published by Nintendo for the Wii. It was first announced at E3 2009 and is the sequel to Super Mario Galaxy. It was released in North America on May 23, 2010, in Japan on May 27, 2010, in Europe on June 11, 2010 and in Australia on July 1, 2010.