I'm playing that one. I know that should be "very hard", but I think that's the limit of "unplayable". I'm very careful around the stairs between the first and second floor, but that zone shouldn't be so fragile. But I had almost managed to complete it, except for one single point: I opened the G doors, got a key, but there is a room of all collapsible floor tiles with a monitor for clues. But I can not read it, I'm afraid of falling down after a whole half hour of tense play... And still I fell through the stair room. Where I should use that key? Maybe there is only one closed door, but still feeling bitter for this cheap dead. If the game is going to be this hard to the end, I think I will drop it, and I was really loving it!! 😞