Your whole team starts on one side of a volleyball net with no one on the other side.
The object is to get your team to the other side of the net and back as many times as possible.
Using a balloon for a ball, each player volleys the balloon to another player and then scoots under the net to the other side. The last player to touch the balloon taps it over the net and scoots under.
The receiving players try to keep the balloon in play and repeat the process.