id Software’s Super Mario Bros. 3 PC Prototype
usgamernet · Demo · YouTube title: Super Mario Bros 3 PC Prototype from id Software
Why it's here
Cited as footage of a famous piece of gaming history whenever id Software, Commander Keen, or scrolling tech comes up.
What it covers
A short clip of the Super Mario Bros 3 proof-of-concept PC port built by id Software's founders to pitch Nintendo on a PC version. Nintendo passed, and the same technology led to Commander Keen.