Tape 49, the wraparound segment. Things become more and more surreal as the tapes are viewed:
Before Phase I Clinical Trials, a suspicious figure can be seen peering out at Ayesha through the shadows.
After A Ride In The Park, Ayesha is seen suffering from a nosebleed and a migraine while staring at the various TV sets in an almost hypnotized manner. The same figure from earlier also watches her again as she watches the next tape.
After Safe Haven, Ayesha is discovered to have killed herself with her gun, leaving Larry to nervously watch the last tape, which has the word "WATCH" written on it in lipstick.
After Slumber Party Alien Abduction, Larry plays Kyle's video, who says he wants to "make his own tape". He shoots himself through the jaw, but remains alive and hides somewhere just as Larry and Ayesha initially break into his house. At that point, an undead Ayesha attacks Larry, who is forced to shoot her. As Larry hides in the closet, he is ambushed by Kyle, who strangles him to death, then gives the camera a thumbs up.
Phase I Clinical Trials. The ghosts that Herman's new cybernetic eye allows him to see (a man, his young daughter, and Clarissa's abusive uncle) are sinister to look at, being pale, bleeding, and having a constant menacing scowl on their faces.
There's also the way they subtly and not-so-subtly mess with Herman at home. Moving his game controller, dropping a tea kettle, hiding under the sheets of his bed...
Clarissa mentions that she had a cochlear implant installed in her ear, giving her the ability to hear ghosts. She also mentions to Herman that she heard the ghost of the young girl in his house crying.
Also, according to Clarissa, ghosts are all around us. People are very rarely able to sense them, but when they can, the ghosts can tell, as they grow more powerful the longer people pay attention to them.
As a final touch, Clarissa, who was previously drowned in Herman's pool, is now among the ghosts when they gang up on him.
A Ride In The Park. This segment gives us a Zombie Apocalypse. Not only in broad daylight, but from the point of view of a zombie.
People who are bitten by the zombies vomit up a disgusting amount of blood as the infection takes hold. Since protagonist Mike is bitten early on and the segment is shown entirely from point of view, Vomit Indiscretion Shot is played completely straight.
One of the first things Mike does after being zombified is attempt to devour the flesh on his arm. He ends up spitting it out because a zombie's own flesh apparently tastes vile to them.
The birthday party being crashed is just terrifying for how quickly everything falls apart. One moment, a happy gathering of friends and family. The next, an absolute massacre.
During the massacre, Mike is stabbed directly in the eye with a meat fork, and he eventually pulls the utensil out, ripping his eye and optic nerve out with it.
Mike also briefly snaps out of his murderous rage when he notices his reflection in a car window, before he's promptly shot and run over by a car.
One of the worst parts of the story is that the source of the zombie outbreak is never explained, and the outbreak itself is far from stopped at the end.
Save Haven. The cult of Paradise Gates in incredibly sinister, even before things go to hell.
Joni's death. He's interviewing Father when a bell starts tolling in the compound, Father immediately takes his shirt off and makes an announcement that the "time of reckoning" has arrived. The only problem is, Joni keeps interrupting him by asking what's happening. Father pulls out a box cutter, jumps onto the desk, screaming at him, before tackling Joni to the ground and slitting his throat. With a copious amount of blood, and chilling sound design.
After this, Father finishes his prayer over the intercom, and with one last "Amen", the cult members begin committing mass suicide. This begins with a large group of them in a room Malik stumbles upon who all shoot themselves in the head, with some disturbingly realistic effects.
Not five seconds after the final suicide by gunshot, a fleeing cult member is gunned down by another with a shotgun, who then fires at Malik. A struggle ensues, and Malik is able to get the shotgun pointed near the cult member's head. But then...
And immediately after that? Gory Discretion Shot is averted. We're treated to a close up shot of the red pulp that remains of the cultist's head.
Adam stumbling upon a cult member executing his brethren... and Malik. The cultist aggressively threatens to kill him if he interrupts, and Adam can only watch as Malik is executed, before the cultist tells Adam it was an honor to meet him and turns the gun on himself. Oh, and then they all get back up a little later.
The birth of the cult's god is Fetus Terrible incarnate. The demon is seen squirming within Lena, causing her immense pain before it tears its way out of her stomach.
This is foreshadowed when Adam discovers a woman in the compound's basement with her womb carved out. The woman then wakes up and begins screaming and convulsing. It's implied that she was one of Father's failed attempts to have the cult's god be born.
Before the demon itself is born, the room Lena is taken to explodes, blowing Adam away and allowing him to get a good look at a woman crawling across the ceiling. Adam then meets Father, covered in blood and having the cult's symbol carved into his skin, telling him "it is fulfilled", before exploding in a cloud of blood and entrails. Adam then finds Lena strapped to an altar. The woman who abducted her are holding her down, already possessed and wailing horrifically.
Adam's escape through the compound is filled with this, from his encounters with the possessed cultists, including Joni and Malik, to dismemberment and what looks like a brutal rape. And all while he can hear the demon pursuing him...
At the end, the demon reveals itself to be Adam and Lena's child. The revelation causes him to laugh insanely before the segment ends.
Slumber Party Alien Abduction. The Greys are this in spades. They resemble their namesake and are more interested in abducting people for medical purposes rather than outright killing them. However, they're taller, have camouflaging abilities, can move at lightning speed, sound like demons, and one look at their faces is enough to tell you that they do not mean well.
Another key difference from most interpretations is that they terrify their subjects before taking them, making them look like sadists along the way. Near the end, they even disguise their ship as a group of police sirens to lure the kids into their clutches. They manage to abduct Randy after revealing the ruse.
Before abducting the teenagers, The Greys startle them by messing with the house's electricity and blaring loud, abundant noises.
What's worse, Shawn and Danny are not seen again after this first abduction, implying that they drowned as well.
If one listens carefully, Jen can be heard screaming when the aliens pop up and bring back their lights and horribly loud noise a second time. Jen starts screaming at the time when the image provided above is playing.
The end of the segment, where Gary is lifted into the alien ship via tractor beam, grabbing onto Tank, is horrifically realistic. Gary's yells and screams don't help in the matter. What's worse is that Tank is left to fall from a two story height, and the audience slowly gets to watch him die from his injuries.
