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: Sonic Web Access
Memetic Mutation: Many memes are referenced in dialogue and boss fights. It's also subverted in that Tails Doll, the villain, doesn't reference anything from his mythos.
Nightmare Fuel: Even if Tails Doll doesn't act as creepy as you'd expect, the game over screen does feature the classic fanart of a bloody Tails Doll standing by the side of a fallen wheelchair.