Red light, green light is a game played mostly by children. The "it" person stands at one end of the playing field, with the rest of the players at the other end. "It" turns their back to the others and calls out "Green light!" The players then run as fast as they can towards "it". At any time, "it" can face the players, calling out "Red light," and the others must freeze in place. If anyone fails to stop, they are out or must return to the starting line. Other variations include calling out "Yellow light" as a diversion, or where they must walk instead of run to "it". Calling Yellow Light has no consequence. The first player to reach the person who is "it" wins and becomes "it" for the next round.