In the first one at least it would whisper “deaaath” if a follower died and there was no graveyard built. Terrified me hearing that the first time playing at night

The bells and whistles would need to be pretty loud to be heard over the regular chainsaw operation noises

The house appears to just be his head.
Is the rest of his body underground, and the interior of the above ground is rooms made of skull with brain spread around?
Is the rest of his exterior body the walls inside the house, like arms sticking out in the kitchen (for cooking), legs in the living room (so he can put his feet up at the end of the day), other appendage in the bedroom?