i just bought it yesterday and am having trouble on the level after you beat Lurtz. I can get up to the cave troll that throws things at you but i cant seem to beat him. Ive tried hitting him from behind but he always turns around and clobbers me. There is not enough room to run around and fight him like the one in the mines of moria and i even tried to get him to beat on some type of gate to see if he could break it down but no luck there. Any tips would be helpful.