Use "WASD" to move, left click to throw. Don't run out of the field, or on the opponents side. Your on the left, throwing the ball at the person on the right. You have 60 seconds, if you hit the other person +10 points, if they hit you -10 points. Click "R" to restart. Your have a random throwing speed, moving speed, and same with the other person on the right. If your holding your own ball you can get hit same with your opponent.