There are two teams of six players, facing each other on a court, and the aim is to eliminate your opponents by hitting them with a thrown ball.
There are five balls (three for the junior game) in play and you have to hit the opposing player anywhere on the body (below shoulders for juniors). If you are facing, then it's your job to dodge the ball.
If the opposing player catches the ball, then you're eliminated and the team that made the catch gets another player back in the game. If all of your team have been eliminated, you lose or if time runs out and your team has the least amount of players on court.