Here's a simple implementation of an Auto Atari Pong game with 3 balls and 3 paddles using JavaScript in a single HTML file:
This code sets up a canvas element where the game will be rendered. It then defines three paddles (left, right, and top) and three balls with their initial positions and speeds. The game loop runs continuously, moving the balls and the paddles, handling collisions, and drawing everything on the canvas. The paddles move automatically based on the position of the first ball.
Please note that this is a basic implementation, and you can enhance it further with additional features like scoring, levels, and more advanced AI.