All those are correct so far. The LotR game is the first one. There's no third one unfortunately, since I was a big Tolkien buff in the early 90s, played through the games at least 5 times each. It's also awesome because you can carry over your stats / some equipment from the first game to the second game if you play them in order. I actually still have these in my PC collection box.
Three is One Must Fall, which I wanted back in early 90s, because I saw it in those shareware catalogs.
Four, Terminal Velocity was the same, and I actually played it a fair bit, although I liked the pink lasers the best, but couldn't find a picture of it.
Five is Heretic, which I liked more than all other 3D shooters at the time other than Doom/Doom2, but my friends never did, so it was always hard to get them to play it with me.
Six is Hocus Pocus. Interesting side scroller lol, but it's waaaaaay dated now. It ran super fast on my 486 though =P
No one knows #2 though? I actually got a copy of it recently off Goozex. Great game, but there was one major design flaw... Which I'll get into after someone guesses it =P