For those of us who remember the '80s, there's nothing quite so fun as reminiscing with really old video games. Now the same people who brought us tiny Atari keychain joysticks have come up with Nintendo Mini Classics. These are keychain-size versions of Zelda and Donkey Kong, just as they appeared on Game & Watch handhelds from the 1980s. At only $9 each, they won't even bring back sheepish memories of begging for months for a new game cartridge or portable device. As technology continues to get smaller, we're crossing our fingers and waiting for a pencil- or toothpick-size version of Super Mario 3.