History Film / FridayThe13thPartVIIIJasonTakesManhattan

** The timeline for this film is so confusing that the only way to make sense of it is to assume ComicBookTime now applies to the characters. The film was released in 1989 and starts with Jimmy stating that Jason drowned 30 years ago, which makes sense since he's was supposed to have drowned in 1957. This would suggest the film takes place in the year of release, except this blatantly ignores the TimeSkip shown in Parts 5, 6 and 7 that would most certainly place the setting in the mid to late 90s at the earliest. Not only that, but Rennie is portrayed as being a teenager only for her flashback to [[spoiler:show her as being roughly the same age as Jason when a child]], meaning she should be in her 40s if not 50s.

* ContinuitySnarl: Possibly with the intention of making Jason look more [[TragicMonster tragic]], the movie decides to depict child Jason in flashbacks and his "true form" [[spoiler: after he dies]] to look like a perfectly healthy looking child without any of the deformities he was established to have in other installments of the franchise.

** Rennie crashes a police car after running over Jason and hallucinating Child!Jason, causing [[spoiler:Colleen]] to be blown up.

* ArtisticLicenseGeography:
** One of the more infamous cases in movie history: Jason manages to get from a lake to the ocean. Lakes don't flow into oceans like that. The only way lakes connect to the ocean is through rivers as a way to purify the salt water as it it enters the lake. And it's not big enough to fit a fishing boat through it.

* HarpoonGun: However, after being at the bottom of a lake for a year, Jason doesn't have the coordination to properly pull back the rubber band on it. No problem--he stabs a girl with the ''whole harpoon gun''.

->''"New York has a new problem."''

* FlatCharacter: One of the teen boys, Miles, who doesn't get any characterization besides being friends with Julius, Waybe and Sean before he's killed by Jason.

** When Steve says that Jason Voorhees is killing people on the ship, [= McCulloch=] doesn't believe him and thinks the creepy deckhand is the killer. Besides, who the hell would think an undead killer would be killing people on a boat when he usually kills people in one specific area?

* FlatCharacter: One of the teen boys, Miles, who doesn't get a single shred of characterization (or even a ''single'' line of dialogue in the movie) before he's killed by Jason. He didn't even get to speak a single line in the whole movie.

* LetsSplitUpGang: While the previous films in the series had averted this (usually because characters tended to die before they could alert anyone as to Jason's presence), this one embraces it. After the ship's captain is found dead, Julius organizes a hunt-down for Jason, which leads to the death of two other students. Then, when the boat survivors arrive in NYC and Rennie is kidnapped, [= McCulloch=] suggests doing this again to find her, which leads to Julius' death.

* ShadowDiscretionShot: The sanitation worker's death.

* TooHappyTooLive: Chief engineer Jim mentions his infant son just a few minutes before Jason kills him.

* CassandraTruth: Despite all the chaos that ensues on the boat and off it, and the deaths of several characters, [= McCulloch=] adamantly refuses to believe that Jason is alive and after them until Jason comes after him and drowns him in a barrel of sewage.

* DatingWhatDaddyHates: Tamara says she'd date/sleep with Julius from the sole purpose of pissing her father off, and more poignantly (if only for a second) in order to get his attention.
* DeanBitterman: Charles [=McCulloch=], who constantly wears the disposition of a stern puritan.

** While not exactly evil, BetaBitch Eva is clearly uncomfortable with Tamara pushing Rennie off the boat, and stops hanging out with her afterwards. Though Eva does try to find Tamara when everyone is told to get together, and finds her body. And Jason.
** The one moment where [= McCulloch=] can almost seen admirable is when he doesn't let himself be seduced by an eighteen year-old student trying to get her grade bumped up. [[spoiler: he may be more concerned about his reputation, since he ogles the student quite a bit before rejecting her.]]

* FlareGun: [=McCulloch=] grabs a flare gun when he goes looking for the deckhand, whom he suspects being responsible for the deaths onboard the cruise ship.
-->'''Mrs. van Deusen:''' Nobody could possible see a flare gun in this storm.

* GeographicFlexibility: Despite early ''Franchise/FridayThe13th'' movies and supplemental materials largely suggesting that Crystal Lake is landlocked, this sequel suddenly implies there being some kind of water passageway connected to the lake that empties out into the Atlantic Ocean.

** When Steve says that Jason Voorhees is killing people on the ship, [= McCulloch=] doesn't believe him and thinks the creepy deckhand is the killer. Besides, who the hell would think an undead killer would be killing people on boat when he usually kills people in one specific area?

* OddFriendship: Two examples. Drug using, manipulative AlphaBitch Tamara and the kind, shy, studious Eva, and also hardcore rocker J.J. and geeky camera fiend Wayne.

* OffWithHisHead: Julius's fate, as his boxing match with Jason ends with a him getting decapitated with an uppercut.

* QuizzicalTilt: Jason does it when he sees a hockey billboard which has a mask similar to his.

* WalkDontSwim: A deleted scene would have showed Jason doing this.

* WellDoneSonGuy: Established between the captain Robertson and his son Sean in their initial scene. He shows regret over it later on and tells Jim to avoid putting too much pressure on his own son. Not that either of them lives long enough to act on that advice.

** In the scene where we see the few students left being taken to the dining hall, Jason is shown peeking in at them through a window. It's likely that small group was killed by Jason offscreen, but nothing is ever mentioned about all the other students left in the ship.

* KickTheSonOfABitch: Among Jason's many kills in the film, three of them are two thugs and [= McCulloch=]. Their deaths are brutal, painful, and not particularly quick {except for maybe the 2nd thug}. However, considering that the two thugs tried to rape Rennie, and that [= McCulloch=] was revealed to have nearly drowned Rennie in a half-assed attempt to teach her how to swim, [[AssholeVictim it's hard to feel bad for any of them]].