Pole Position. The most under-rated pack-in ever. It only takes flak because it was packed in against Super Mario Bros. I wouldn't want Super Mario Bros packed in with my competitors' console TODAY, let alone in the mid 80s. There are a handful of games better than SMB, and I only say that because I'm a Sega fan.
DARK CHAMBERS is my favorite Atari game.
In 2600 version I have rolled the score (100,000+ points) at Beginner, Standard, and Advanced Skill when I was learning how to play it.
In 7800 version I have passed 500,000-point mark at Standard Skill and 100,000-point mark at Advanced Skill when I was knowing this game, and training.