Prong ia cooperative Pong game.
Players 1 and 3 control the upper red paddle. Players 2 and 4 control the lower blue paddle.
Goal is to never let the ball pass your team's paddle, and to get the ball to pass the other team's paddle.
a: player 1 left
s: player 1 right
h: player 2 left
j: player 2 right
': player 3 left
\: player 3 right