Just like any normal pong game, click on the green flag. Just move your finger on the touchpad and try to stop the ball from hitting the bottom. At the end you can keep playing but there will be no more levels. Enjoy!!!!! Please feel free to check out my other version of Pong Game, it may look as there is no difference, but trust me, there is!
I would, as always, like to thank @Zinnea from the Scratch Team, I used her method but added a bit of my own code and added around 5 levels more. Please check out her channel and my other games, such as: Clicker Game, and my other version of Pong Game. Soon I will be making a 2 player pong game. Enjoy!!!!! Credits to @niaza054 for my watermark!!!!!!