Massively Multiplayer Pong

Fancy a game of Pong with a difference? Play Massively Multiplayer Pong! You'll be automatically assigned to a side and then, by using your mouse, you register where you'd like to move the bat to. Hopefully the others on your team will do likewise and the bat will move! It's hard to explain, but it's based on this theory (from Edge Online):

In his book Out of Control, author Kevin Kelley describes a Las
Vegas conference room where a crowd of 5000, led by Pixar co-founder and
Rescue on Fractalus co-creator Loren Carpenter, learn to adapt and react as a
hive mind as they play a game of 2500 on 2500 Pong. Each half of the auditorium
took collective control of each side, registering their individual intent to
move in a certain direction with the wand. The input lead to a computer, which
averaged and relayed the moves to the game, with initially disastrous but
eventually workable results.