The sound comes from Capcom's Mega Man series, which debuted in 1987 and follows its blue robot hero through a series of action-platforming stages, each opening with this bright stage-start fanfare. As retro gaming grew online, clips of classic Mega Man music were shared on forums, video platforms and soundboards, where the short jingle became an easy shorthand for starting a run. It remains popular because it is instantly recognisable to fans, short enough to drop into edits, and carries the upbeat, can-do spirit of the original games.