These are what we call the 'YMMV items.' Things that some people find in this work. We call them 'your mileage might vary' because not everyone sees these things in the same way. This starts discussions in the trope lists, a thing we don't want. Please use the discussion page if you'd like to discuss any of these items.
Nausea Fuel: Chapter 22 is full of this, from the shop that sells spare body parts (with some freshly amputated and others savaged from dead bodies), to the realization that Victor can now only eat grub now that he's a zombie.
Nightmare Fuel: Grunge pulling apart and devouring several guards, all described in graphic detail.