The sound comes from the Lego Star Wars video games, where minikits are hidden collectibles scattered through levels and a chime confirms one has appeared or been collected. Players who grew up hunting every minikit associate the noise with completion and exploration, and clips of it later spread through gaming videos, memes and soundboards. It remains popular because it is instantly recognisable, short enough to drop into an edit, and carries a warm, nostalgic reward feeling without needing any dialogue or explanation.