The pickup chime comes from Konami's Metal Gear Solid series, the stealth games starring Solid Snake that became famous on the original PlayStation in the late 1990s. In the games, the short electronic tone confirms that Snake has collected an item, from rations and ammunition to key cards and weapons. As gameplay clips, speedruns and memes spread online, the sound became shorthand for finding something valuable, even outside the games. It remains popular because it is brief, instantly recognisable and tied to a classic gaming moment.