This chime comes from the Wii Menu, the main interface of Nintendo's Wii console, first released in 2006. The system used a set of soft, friendly interface sounds to make navigating channels and settings feel welcoming, and the closing sound marked the moment a player left the menu. As Wii nostalgia grew online, clips of its interface sounds began appearing in YouTube videos, streams and short-form edits, where the familiar tone instantly signalled retro gaming. It remains popular because it is short, recognisable and tied to a console many viewers grew up with.