Granted, I'm slow to find this stuff, but EGM has a couple of hilarious articles where they have kids from today play classic games like Space Invaders and Tetris. The reaction of the kids is too funny and makes you feel kind of old.
Article 1 - November 2003: Pong, Donkey Kong, Handheld Football, Tetris, Super Mario Brothers, ET, Space Invaders
Article 2 - 2005: Punch Out, Adventure, Legend of Zelda, Star Wars, Defender, 720°, Grand Theft Auto, Gunstar Heroes, Galaga, Street Fighter II