Here's my list:
Indiana Jones and the Temple of Doom -- no continues, fun game
Gumbo -- adult-themed tetris-style game. Wish it wasn't adult-themed, it's excellent
Stack Columns -- Same basic gameplay as Gumbo, but no 2-player. Let's see if you can beat this one without a continue.
(Both Gumbo and Stack Columns resemble an old share-ware game for the Mac called "Jewelbox" -- if anyone has a copy of Jewelbox, please get in touch.)
Gyruss -- my all-time favorite game. The No. 2 reason I'm building a cab is because Gyruss stinks with just a keyboard
Gauntlet, Xenophobe, Rampage -- The No. 1 reason I'm building a cab is because these games are fun when you have friends over
Roadblasters -- Think Atari still has T-shirts available?