The GameCube startup jingle comes from Nintendo's GameCube console, first released in Japan in 2001, where it played each time the system booted up. Its bright, ascending notes became instantly recognisable to a generation of players, and the sound has lived on in retro gaming culture long after the console was discontinued. Reversing the jingle is a simple fan edit that keeps the melody recognisable while making it feel strange, which is why reversed versions circulate on soundboards and in short videos as a shorthand for nostalgia turned slightly wrong.