Luckily his dad never played the game...heh. I don't think he would have approved.
There are still weapons in this game I haven't seen in many or any other FPS: Things like the shrink ray.
I think I've played a version of this on every console I have owned since then..I'm glad to be able to get it the original for a PC again. Very very cool to find this on here; can't wait until I can get Rise of the Triad...(A game I played after DN 3d, but loved.)