- Author's Saving Throw: Possibly the one saving grace the movie has is that the main cast is full of likable characters you want to see survive. Contrast this to the last film, where everyone was a Jerkass at best who deserved everything they had coming to them.
- Complete Monster: "Charon IV" is a member of the Circle, a group of sadistic hackers who prey on innocents for their own amusement. Charon IV spends his time stalking and spying on potential victims using surveillance and web cameras. After other members of the Circle see video footage of the victims, Charon IV kidnaps, tortures, and eventually kills the victims upon the members' requests, filming himself committing the murders. In order to prevent interference from law enforcement, the Circle conspire to frame Matias and his friends for the various murders they committed. Charon IV leaves his laptop for Matias to find, and later threatens to kill Matias's girlfriend, Amaya, if he doesn't give the laptop back. After Matias and his friends are all killed and framed for Charon IV's murders, Amaya is kidnapped, implying that the Circle and Charon IV will continue torturing and murdering people.
- Contested Sequel: The movie isn't exactly better than the previous one, but it's not worse either since the first film was divisive to begin with (it's only a few points lower than Unfriended on Rotten Tomatoes, and has a "C" rating from CinemaScore just like the first film). While this movie did improve on how likable the characters were, thereby avoiding Darkness-Induced Audience Apathy, the film's biggest detriment is that it's clichéd and also doesn't have any anvil-dropping themes that the first movie had.
- Cliché Storm: A main character stumbles across something dangerous, and instead of getting rid of it early on (and at his friends' requests), he holds onto it until it's too late, and inevitably puts his life and his friends' lives in danger. Predictably, everyone in the film (except Amaya, maybe) is killed off one by one.
- Critical Research Failure: The fake suicide note the Charons write at the end uses the American English 'labeled' rather than the British English 'labelled'. The character they write the note for is English, not American, and would therefore use the latter.
- Ensemble Dark Horse: Damon and AJ seem to be the most popular of the characters.
- Memetic Mutation:
- Comments predicting the next Unfriended sequels, ranging from Unfriended 4: DeviantArt, Unfriended 3: Bin Weevils and the list goes on.
- The fact that the Main Characters are using Skype...in 2018.
- Moral Event Horizon: The Circle cross it when they force Serena to chose between the life her sick mother or her girlfriend Nari. When Serena chooses none of 'em the Charons kill them both and then kill Serena, too.
- Moment of Awesome:
- In the THIRD ending (only available on the DVD/Blu-Ray), Matias and Amaya are allowed to live, after Charon IV reminds The Circle of Matias's bold move to attempt to extort them with their own money in exchange for Amaya's safety.
- Matias makes some pretty good decisions, such as telling Amaya to take the subway, knowing that the Charon following her would drop out of the Skype call due to lost signal. Additionally, holding the Circle's own bitcoin as insurance was a pretty ballsy move.
- While it can be seen as a Tear Jerker scene, the face that one of the main characters makes when they see their mother in the hospital, showing off their lower row of teeth and slightly shaking with her eyes half-closed, can be seen as this.
- Charon IV writing in all caps is meant to look threatening, but he just comes off like your basic whiny internet troll.
- The fact that the cursor icon for one of the Charons, shown when theyre about to kill AJ, is Flipping the Bird.
- Compared to the first movie, the acting has purely become Large Ham at best.
- Nausea Fuel:
- The files on the laptop show very gruesome things.
- Erica having some kind of welt on her forehead as a result of the trephination...and then she peels it off, revealing the gaping hole in her skull.
- Paranoia Fuel: Imagine finding a laptop only to discover it belongs to some of the most sadistic, monstrous people imaginable...who find you, know exactly where you are and fully intend to torture you and everyone you love because they can. Worse yet, all those things in the videos? That kind of stuff actually exists on the dark web. People like the Circle are real, and accessing the dark web requires bypassing things that keep you safe on the 'normal' web, and there are horror stories not so different from the plot of this movie.
- The Woobie: All of Mathias' friends but Mathias himself takes the cake especially by the end.
- All the Circle's victims are this given how cruel and sadistic their deaths are.
YMMV / Unfriended: Dark Web