That's why it's called Nightmare, I've been trying for 4 hours straight the Bella nightmare mode XD
But you're right, it's DANG HARD, pred's Hearing is Granny Level almost, they can hear you throught the Floors, and at the moment you drop something the know exactly where that noise was and they don't give up on chasing that source of sound wich is Horrifying when it happens XD