Squid Game, the South Korean survival drama released on Netflix in 2021 and created by Hwang Dong-hyuk, gives players a vote after each game. A press of O means continue and a press of X means stop and split the prize. The voting scenes became one of the show's most copied formats online, especially after later seasons made the O and X patches part of the players' tracksuits. Creators reuse the O sound for polls, dares and group decisions where yes carries a risk.