Meredith and I picked up the Atari 10-in-1 game this weekend. It's a joystick, modeled after the original Atari 2600 joystick, that has 10 of the old 2600 games built into it (including Missile Command, Centipede, Asteroids, Pong). I just played Asteroids long enough to roll the score over. I had forgotten that you could even do that on the old games.
Totally fun. :)