High Quality Content by WIKIPEDIA articles! Mother 3 is a 2006 role-playing video game developed by Nintendo, Brownie Brown and HAL Laboratory and published for the Game Boy Advance handheld game console. The game has only been released in Japan, though it has a cult following among English-speakers. It was written by Shigesato Itoi, the creator of the series, and directed by Nobuyuki Inoue. The music was composed by Shogo Sakai. While Mother 3 is the sequel to EarthBound and is the third game in the series, the story focuses on a new, unrelated cast of characters.