IDDQD - http://www.redbubble.com/people/jimiyo/works/8578311-iddqd-god-mode
I may have used this code all the time playing Doom and Doom II. Gimme a break. I was like eight years old, heh.
Doom i spend much time in this game
GOD MODE!! i still remember this cheat! :’)
God mode, I remember running this game on DOS..oh good times