The Start call comes from Nintendo's long-running Mario Party series, where an announcer marks the beginning of a board match before players roll, move and compete in minigames. The voice is credited to Eriko Ibe, whose bright delivery helped make the short cue easy to recognise even outside the game itself. As gameplay clips, streams and party-game compilations spread online, creators began lifting the one-word announcement to open their own videos, because it instantly sets up competition, turn-taking and playful rivalry without needing any explanation.