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.
YMMV: Let's Go Play at the Adams'
Crowning Moment of Funny: Cindy trying to impersonate Barbara when an unexpected visitor shows up. Trust us, that's about as light-hearted as things get.
Moral Event Horizon: Every time it's crossed, you think they can't cross it again. Then they do.
Paranoia Fuel: It might be a while before you feel safe going to sleep or letting your guard down in any other conceivable way.
Lots of it. LOTS of it. The reason so many reviews are split on whether this book is a masterpiece of disturbing horror, or just disturbing. The one thing every single review of this book seems to agree on, is that it is disturbing.
Paul choking to death on his own vomit in Game's End.