The overworld theme was composed by Koji Kondo for Nintendo's Super Mario Bros, released in 1985 for the NES. Often called the Ground Theme, its Latin influenced rhythm and memorable lead line helped define video game music when hardware allowed only a few channels. It returned in sequels, remixes, concerts and ringtones, and became one of the most recognised melodies in popular culture. Online, short loops are shared as a universal cue for retro gaming, heroic little missions and anything that feels like starting level one.