All the players are blindfolded, and stand in the play area. Someone is then picked out and spun around several times. Then they are handed a dodgeball by the watcher. The blindfolded player with the ball calls out ";MARCO";, the other players have to respond ";POLO";. The payer with the ball then throws it from where the sound game from. If they hit anyone they are out and must leave the game. The ball is returned to the thrower who repeats the process. The person who is the last remaing ball dodger is the winner and becomes the new thrower. Anyone who doesn't respond ";POLO"; when called is out.
Source: From the original site.