I'm not sure if you've understood my explanation or if I've misunderstood the issue. The thing is you go to the first floor, grab the green rings on each floor, up to 6th since it'll reach 50, then you go out and those 50 will be added to the total count outside of the pandemonium. You can go back inside and farm another 50, once you are back home you'll have 100 total. Repeat, 50 in the dungeon, 150 total at home, and so on. You don't need to get 200 or 800 hell points in a single dungeon session but total. It's what I think you are trying to do, getting those 180 hell points in one sitting when that takes a lot longer than the greens method if you are not trying to also farm levels or level skills. Were you trying to do that?