Infernal Affairs.

According to a search on Dianping.com, a game in which each person holds half a water pipe and puts a ping pong ball down is called "Infernal Affairs." Each person takes a piece of pipe and lets a ping pong ball roll safely from one end to the farthest paper cup. Since the distance is relatively long, the people in front have to queue up to the back of the team to add more after sending the ball away, and connect them together to send the table tennis to the destination.