Red Light Green Light is a popular children's game that involves players trying to reach a designated finish line while following specific rules. One player, known as the "caller," stands at the finish line and calls out "green light" or "red light." When "green light" is called, players can move toward the finish line. When "red light" is called, players must stop immediately. If the caller sees any player moving during "red light," that player must return to the starting line. The game continues until one player successfully reaches the finish line first, winning the game.