Anyone into really old video games? What are some of your favorite arcade, Atari 2600, ColecoVision, & IntelliVision games?

I really like Venture, which I have on ColecoVision, and Qix is a lot of fun, too. I didn't "get it" at first, but my friends got into a "Qix-high-score" competition and I got sucked in.

Berzerk and Robotron are also a lot of fun.

I'm working on a JavaScript/HTML5 library, and I'd like to make some arcade-style games, with Esperanto translations, so I'm trying to figure out what kind of games to model new games after.

• Pickin' Sticks (Prenu Branĉojn) Prototype game - Probably has translation errors; nobody has reviewed it yet. It is just a prototype, though.
  
• My JS Library on GitHub
  
• My JS games collection (Including Pickin' Sticks) on GitHub