Mother (マザー Mazā) is a role-playing game series created by Shigesato Itoi for Nintendo. The series started in 1989 with Mother for the Famicom, and was then followed up by a sequel, EarthBound for the Super Nintendo Entertainment System, and followed up again much later in 2006 with the Japan-only Mother 3 for the Game Boy Advance.
Like the Final Fantasy series, the Mother games are not a sequential series, but rather three "stand alone" games that feature common characters, themes, and settings. All three games are tied together with their respective final bosses.
Although most RPGs depict knights and wizards in pseudo-medieval settings, the Mother series takes place in more modern present-day Western settings told from a Japanese perspective. The first installment is set in rural America in 1988, while EarthBound is set in "199X" in Eagleland (an allusion to the United States) and Mother 3 is set an unspecified number of years following the events of EarthBound, on the Nowhere Islands (with some Western overtones). Enemies consist of everything from aliens, to possessed guitars, to evil hippies. Instead of swords and shields, weapons consist of household items, from yo-yos to frying pans. The series became extremely popular in Japan, and merchandise for the game was produced, including shirts, handbooks, and even a fully-orchestrated and performed soundtrack. [Taken from Earthbound wiki]