The objective of a game is to score a set total of points before your opponent does. Points are only scored by the person serving the ball. In other words, if a player wins a rally but did not serve at the start of that rally they only win the right to serve, and thus the chance to score after a subsequent rally. The serving player has two opportunities to hit the ball, from the "service area" (between the two parallel lines), off the "front wall" and across the "short line" (which is located exactly halfway down the court from the front wall).