From 1990: A 12 year old, armed with an NES, video camera and VHS recorder, films a walk through on how to beat Mega Man. (SLYT)
Any critical analysis of MegaMan might just conclude that MegaMan was malware.
Super Mario Bros. Crossover 2.0 is out! An expansion on the original game, which let you play as various NES characters transplanted into Super Mario Bros., but using the rules and abilities of those characters from their original games, version 2 offers more special abilities, more characters, and your choice of audiovisual "skins" based on four Mario games from the NES, SNES, and Gameboy, along with one based on Demon Returns. There's even instructions for playing with a gamepad! For more information, see the Super Mario Bros. Crossover Wiki or watch the exciting Super Mario Bros. Crossover trailer! [Previously]
It's not Friday and it's not Flash. Eric David Ruth makes downloadable PC games which generally ape the style of old-school console games. He's got quite a bit of attention recently for Pixel Force Left 4 Dead, which attempts to recreate Left 4 Dead as it would have been on the NES.