Mario Kart and Super Smash Bros are two of Nintendo's longest running multiplayer series, both built around dramatic countdowns before the action begins. Mario Kart uses timed beeps before the green light, while Smash Bros uses a bold announcer and a 3, 2, 1, Go sequence to launch a fight. Fans combined the two start sounds online because they share the same buildup and release, and the mashup spread in gaming edits, streams and memes where a regular transition needed instant competitive energy.