The sound comes from Nintendo's Mario Kart series, composed work credited to Kenta Nagata for the race start sequence players hear at the beginning of every Grand Prix and versus race. As Mario Kart clips spread through YouTube edits, streams and soundboards, the countdown became shorthand for starting any contest, much like the Mario Jump sound is instantly tied to the platform games. Its beeps are so familiar that audiences understand the timing without explanation, which is why creators still use it years later to mark a clear, playful starting line.