This countdown is best known from the Super Smash Bros series, where an announcer says “3, 2, 1, Go!” at the start of a match. The phrase became widely reused in gaming edits, meme videos, and short-form content because it instantly tells viewers that competition or chaos is about to begin. It remains popular because the structure is universal: a short countdown, a strong vocal delivery, and a clean cue for the exact frame when action starts.