- Broken Base: Starting with the second film, The virus being able to possess Ángela really put a taste in some fan's mouth.
- The third film, while still good, is mainly considered this due to it being less with Found Footage perspective.
- The fourth film, feeling that the film itself is pretty much a weak ending to the franchise.
- Magnificent Bastard: The demon.
- Memetic Mutation: "Pablo, grábalo todo. Por tu puta madre"*
- Nausea Fuel: Medeiros vomiting the demon itself, a grotesque worm-like entity, into Ángela's mouth.