When I was little, I played this game down to my knuckle-bones. this game is a land mark, not only for the 3d 1stperson shooter genre, but it's also a reflection of the time in wich it was developed. Metal celebrated an all time high thanks to great bands, great scene and (believe it or not) MTV
You play a marine who finds him self on mars where all hell has broken loose. You shoot demons and zombies with a wide variety of weapons that you find along the way.
The amount of on screen pixelated violence you were treated to in this game was unprecedented. blood spurts as your target slump to the ground when you empty your shot gun in their face. Even better is the midi music that accompanies you during your cleaning round.
I'm sure there are people on here who were jamming with their friends and someone started riffing the melody of the first level.
I wanted this patch as it represents happy childhood memories and may be considered a pioneer in incorporating the metal spirit in a video game if not the music.