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: Alice is Dead
Ear Worm: "Here Comes The Boogeyman" by Henry Hall in the first game. Doesn't help that it's on a loop...
The song "Alice Is Dead" by hania in the 3rd game is, if anything, even easier to get stuck in your head.