So - well done! We can make our Pong Ball move! But it always leaves the game area!
We need to make it bounce. We need to understand that:
Watch the video. It is about 10 minutes long. It will introduce you to object properties and to a neat trick to reverse the x or y direction of the ball!
You challenge is to make the ball in your game bounce of each game area edge... not just the one in the tutorial.