The secret jingle comes from Nintendo's The Legend of Zelda series, where it has played since the early games whenever the player discovers something hidden. Composed as a tiny reward fanfare, it became one of gaming's most recognisable audio cues through decades of sequels and re-releases. Like other classic game notification sounds, it was adopted by streamers and video editors as shorthand for any reveal, and its bright, cheerful tone keeps it popular in memes, reaction clips and discovery compilations today.