Duke Nukem 3D was the first FPS game I've ever played. Not Doom, not Wolfenstein 3d, it was Duke Nukem 3D.
I remember, as a kid, we were at some computer store, and they had this game on display. I played it and thought it was awesome and convinced my parents to get it for me.
Obviously they didn't take note of the violence, blood, swearing, and pixelated nudity and a zillion other adult subject matters to be like 'hell no', but looking back, it probably doesn't really matter. As a kid I never really thought about it much. I just wanted to kill aliens, kick ass and chew bubble gum, and that's exactly what I did. Maybe the NRA should take note.
The main theme of Duke Nukem, titled Grabbag, is a personal favorite. The riff is awesome, very old school metal like. It wasn't till later when I heard the complete version, and discovered it was even more awesome. There was a guitar solo and even a synth solo!
The synth gets left out of most Grabbag remixes, much to my disappointment. The synth has become the red headed step child of modern metal music, commonly being left out in favor of more guitars.
But even back in 2009 GaMetal, I had the 'F that, I do what I want' mentality and had the synth parts in tact.
This was the 3rd most popular GaMetal song from the 2009 era, though not as popular as Pokemon RBY Trainer Battle or Gourmet Race. Due to popular demand, this song got a makeover in 2011, complete with a guitarless backing track and guitar tab video (currently unavailable but I will have it back someday). It also makes a 3rd reappearance in the Blast from the Past medley at song #4.