Pong is a simple game controlled by the user and a ball. The ball bounces off the paddle and three walls. If the ball bounces on the paddle, the user gains points. As soon as the ball falls beyond the paddle, the game is over. Pearl Phaovisaid created a visual tutorial to go along with the Pong tutorial on the site. This tutorial can be downloaded, printed out and then used as a guide to help the user create the Pong app without having to switch between screens.