Yu-Gi-Oh grew from a Japanese manga and anime franchise built around Duel Monsters, a card game where two players battle with monsters, spells and traps. The idea of calling a duel has become shorthand online for any head-to-head contest, and short duel cues are reused in fan edits, gaming videos and memes to mark the start of a competition. Because the format is instantly understood even by viewers who never played the card game, the sound still works as a quick, dramatic opener for challenges and versus content.