Red Light, Green Light is the opening children's game in Squid Game, the Netflix survival drama, where players may move only when green light is called and must freeze on red light or be eliminated. The simple call-and-response mechanic made the game easy to parody, and short clips of the green light cue spread through TikTok edits, reaction videos and soundboards as shorthand for a race starting or a risky move being allowed. It remains popular because viewers recognise the stakes immediately, even without seeing the show.