2.1: Um... that seems to be the entire soundtrack. I don't know what I'm supposed to listen to.
I listened to the first theme, and it is nice! It sounds very familiar, I guess I've heard it before.
2.2: Ah, you don't like Guitar Hero? I wonder why? It seems pretty cool to me. I think you made a mistake, though, it doesn't seem like Through the Fire and Flames is actually a video game song!
2.3: That's pretty cool! It is quite happy for a final boss theme.
Here you go, I recorded the Atari ST version.
3.1: I was unable to find this music! atarimania.com says the composer is unknown, that's why.
3.2: Why do you associate that with frustration? It sounds quite calm!
3.3: I've heard about Duke Nukem 3D on various occasions, but the theme does not sound familiar! It's cool, though.
Not as hard as I'd have imagined, but I really don't mind that.