I just got here. Cloud/Aerith level capped, best equip, HP Up, Raise, Bahamut.
None of that matters when Hell House starts spitting out Tonberrys who can off you with a shot and paralyze you as you try to cast spells like Cure, Raise, or Thundaga. Casting spells like Scourge and Doom back to back. There is no in-game preparation for this. There's no materia or equip to protect against this. Only Aerith's Planet Protection can make you immune to death and there's no way to build up her Limit faster as you can only take so much damage before dying and can only stagger the Hell House once. Not to mention these damned Tonberrys teleport just as you're about to land the killing blow and wind up stabbing you in the back.
I watched a video of someone beating Hell House and it's all luck. This fight is part of the story so it should be skill-based not luck-based. I don't care if Hard Mode is optional.
It is Saturday, April 25 at 4:36PM and after 4 attempts and 2 1/2 hours, I finally kicked this box's teeth in.
EDIT: I defintitely found Sweepy/Cutty to be much easier to handle than the Tonberries. I did figure out that a couple blasts from Aerith's Sorcerous could drop them in an instant but one time when I had waited for the House to spit all three out, I used Aerith's Sorcerous twice, and the Tonberries went completely unaffected. Then she got stabbed with Chef's Knife. I tried to Raise her and the Tonberries Doomed me. I hate those wannabe turtles so DAMNED much. I did eventually win against Hell House a second time (no choice to get both the Cutty and Bombs Special Battles... complete bs), the first time Bahamut wiped out the Sweepers. The second time, I burned out my summon window so I didn't even get any help, had to take out the Sweepers the old-fashioned way. I did find that the doors were open, so I hid inside when the House was doing it's rocket charge. But it didn't help against its other attacks.
By the way, The Valkyrie is a BS battle too. A huge field of knockout gas, Tifa constantly nagging me to lead the laser to it, then you have to hold still long enough for the blast to charge and most times you can't dodge away fast enough and die. Not only that but it is a bitch trying to get the Valkyrie in one place where it'll be affected by the laser. You're getting constantly hammered by machine gun fire and grenades pushing you back away from the Valk and toward the laser, then as you're stunned, you can't dodge the laser and instant death. Bear in mind, I had 8000 HP each. I finally took it down by mostly ignoring the laser and putting more effort into staggering it with basic attacks. Then I got Barret's and Cloud's Limits and just went to town. I've said before that battles (even on Hard mode) should not be a luck-based asspull battle.
A couple of MOOK battles that also kicked my ass: an Elite Shock Trooper and his 2 Helitrooper buddies up on the Pillar. Then in the Shinra Building, a group made up of Guard Dogs, Riot Troopers, and SOLDIER 3rds wiped the floor with me. For this one I had to go back in loaded down with Max Lightning materia. Back to back Thundaga spells made "short" work of these a-holes.