The Ghost of RubangB on 25 June 2008
I'm really having a hard time deciding between Donkey Kong, SMB1, SMB3, SMW, Link's Awakening, StarCraft, X-Com, Portal, Katamari Damacy, Doom 2, Half-Life, and Tetris.
But for this I'll vote X-COM: UFO DEFENSE, aka UFO: ENEMY UNKOWN!!!