Go to one of the basketball courts that have full courts and a chain link fence round them. One of the hoops will have a basketball. Walk up to the basketball and press Y to start playing. While playing basketball, click Right Analog-stick to start the Basketball Challenge mini-game. A red marker will appear on the court. Run to the red marker and shoot the ball. If you make the shot, the red marker will move to a new spot on the court. The goal of the mini-game is to sink as many shots as you can before time runs out. Each shot you make adds a few seconds on to the clock. When time runs out, CJ will automatically resume playing basketball. Your highest score will be recorded and shown the next time you play the Basketball Challenge mini-game.