While there is no single cartridge simply titled "Pong" for the Atari 2600, the game that players typically refer to is , which contains the official version of Pong and dozens of its variations. Why "Pong" Isn't a Standalone 2600 Cartridge
Variations themed after Soccer, Hockey, Handball, Volleyball, and Basketball. Why can't I find Pong? - Atari 2600 - AtariAge Forums pong rom atari 2600 link
A single-player mode where you compete against an AI opponent. While there is no single cartridge simply titled
The standard two-player table tennis simulation (Games 1–8). pong rom atari 2600 link