Arc Villain: Each of the major sections uses a single overarching figure to menace the player.Piccini, one of the objectors, eventually went mad and created something that could save the rats (and himself) from the science team, the result being Sotiris. Eventually their testing resulted in scientific impossibilities, but these were also useless to any sane person. He was ignored but he and the other objectors were unable to leave due to how classified it was. Bowers, the author of the notes, argued to his colleagues that what they were doing had absolutely no practical applications in medicine or the military and seemed to be sadism for its own sake. Animal Testing: The tests in Nezumi Labs.It's heavily implied that they're the result of Sotiris' influence over Dr. Animalistic Abomination: Nezumi Testing Labs is rife with hideous, hunch-backed rat-human abominations.Actually, you're controlling the Siren pretending to be the dog, as shown by a short glimpse of the Siren's hand you can see at the end of the segment, as well as the fact your POV is way too high above the ground to be that of the dog. And Now for Someone Completely Different: In the drains, there's a short section in which you control the protagonist's dog.One being a fire axe and the other being the axe from Spooky's Jump Scare Mansion. An Axe to Grind: Two of the three sledgehammer skins unlocked upon New Game+.