Use the W and S keys to control your paddle. I'm pretty sure you all know how to play Pong...? Includes difficulty slider: 1: Really, really easy. 100: Impossible. No, really. I recommend 80 for a good challenge.
Thank you Scratch Team for your Pong Starter, I decided to make my own Pong game, however, this isn't a remix. It does not use those scripts. My older brother made a few edits to make it more interesting.