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.
Thanks to the game's sudden change to an in-engine cutscene in Chapter 1, Lana could conceivably run into the bathroom where Amy is with a zombie trailing right behind her. As Amy looks out at Lana, Marcello pops up between Lana and the zombie and talks, which makes the whole scene look utterly absurd.
Sometimes, Amy can get lodged in a corner and fly up into the air before landing a few seconds later.
Nightmare Fuel: Of the accidental variety, because Marcello'scharacter model might be freakier than both of Mr. Face & Mr. Talls efforts combined. Add to this his heaving gravelly voice and the section where he's yelling for Amy to "Come out, come out, wherever you are!" makes for one... unsettling subtext. Ironically in the long run he turns out to be a sweet old guy who risked his life so the protagonists could get away safely.
They Wasted A Cool Gameplay Element: The idea that you have to monitor your infection levels, but can actually slip in unnoticed by the zombies when heavily infected, is kinda neat and deserves to be in a better game.