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: The dead cat, the Crooked Man eating a model of an embryo (it was fake, but still), the Crooked Man's impossibly cricked neck...
That One Boss: The dodgy fighting mechanics are difficult to use due to the fact you need to stop moving in order to hit The Crooked Man, while all The Crooked Man needs to do is touch you to hurt you.
Paranoia Fuel: It is heavily implied by certain elements of the game that although the Crooked Man "locked onto" Duke and David, it wasn't actually created by them. It, or other beings like it, exist independently waiting for people susceptible to its influence that it can drive to suicide or kill.