Does renderer sound familiar to you? We already saw a component called Mesh Renderer when we created our Paddle and Ball Game Objects. If you don't remember, have a look:
Aha! What do we have here? Something called Mesh Renderer it has a checkmark next to it. What happens if you click to uncheck that checkbox?
Go on try it!
The ball disappeared. No surprises there. We saw something similar happen when we clicked ...