Uh, I'm sorry Shatar, I'm a bit past that part and I am trying to be in a little hurry as the Underworld takes a lot of time and I want to approach another main quest:P
Yes, I noticed some similarities to Moria, but I wasn't sure:P
And there was one more I guess- the one with the chamber where you have to blow a horn . Doesn't it look like the fight in Balin's Tomb?
With all these attemptos to break the door open and instead of the cave-troll and goblins we have Undead and his zombies:P
http://lotr.wikia.com/wiki/Fight_in_Balin%27s_Tomb