Luigi is Nintendo's green-capped brother of Mario, and his victory theme is the short celebratory tune that plays when he wins in Mario racing, party and platform games. Fans have clipped and boosted that moment for soundboards, where the louder mix makes it stand out in short videos and streams. It spread because it is instantly recognisable even without gameplay on screen, carrying the same playful, underdog charm Luigi has had since his early appearances. Editors still reach for it when they want a win to feel both triumphant and funny.