They are a 154 playable games. On the nintendo switch game, Atari 50: The Anniversary Celebration – Expanded Edition so on YouTube are game play for each of the 154 games

Atari 50: The Anniversary Celebration – Expanded Edition is a comprehensive collection of classic Atari games that celebrates the company's history and contributions to gaming. The collection features a diverse array of 154 playable games, ranging from well-known classics to some lesser-known titles. If you are looking for gameplay videos for each of the 154 games on YouTube, you can search for specific titles or look for channels that specialize in retro gaming content. Numerous YouTubers often showcase gameplay, tutorials, and reviews for each of the games included in collections like this. You might find "Let's Play" series, game highlight reels, or even long-form playthroughs that cover each title. To maximize your search, you could use keywords like "Atari 50 gameplay" or add the specific name of the game you’re interested in to find focused content. Enjoy exploring the rich history of Atari through these gameplay videos!