Sure! I've created a simple implementation of Atari Pong with 12 balls using JavaScript. You can play it as a finished game on any device, including smartphones. Here's the code enclosed within the script tags:
To play the game, you can copy and paste the above code into an HTML file. When you open the HTML file, it will display the Pong game. You can control the player's paddle by dragging it with your finger on a smartphone. The computer will automatically move its paddle to hit the balls. Enjoy playing Auto Atari Pong with 12 balls on any device!