This was before I had any internet access, so some faqs may of helped, every thing was trial and error, probably how rls are meant to be played.
I think the balrog in moria can be overcome easily enough with the right tools. This is going back well over 10 years...possibly mid ninties, on a Mac classic II. Trollish priests level slowly but have lots of hitpoints, he had staffs of cure wounds which counters most of the annoying spells (if the balrogs casts those sort of spells i cant remember), many potions of invulnerablity (which ran out soon enough), and the orb of draining spell which is the best spell in the entire game, as there is no resistance and does extra damage on evil creatures IIRC.
I seem to remember it was an epic battle, I would of spent most of the latter half of the battle recovering from its many hits and fire attacks. I guess I used portal a bit too, man its all coming back to me now.
I had met the balrog a few times before so I new how to be prepared.
I wish I had the morge file nowadays...
I would love to play again, but the interface is just too dated, that and I dont have 40 hours so spare.