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.
Fridge Logic: How can an enemy be tranquilized and on fire at the same time? You'd think the latter would nullify the former.
How do the mutants get all the machinery grafted onto them?
Game Breaker: The Attracting Device, which renders all enemies unable to do anything else but walk towards the device until they reach it (and sometimes they can't reach the place where it is...) Especially useful in the fights with humans (it's supposed to work on monsters only, but it works on human enemies too!).