I made this in about 5 minutes :) All it is is a way to make it so the ball bounces in a logical direction. You can add pretty much anything to this and it will still work. All you need to do to make this is make it so the paddle (the circle in the middle) always points towards the ball. For the ball you just do if touching paddle point in direction direction of paddle. The only inconvience is that the paddle won't look proper. I have now made this project's (and 3D close far ball's) background my official tutorial background.