* CameoProp:
** The book Necronomicon from ''Franchise/EvilDead'' films and The Crate from its namesake story from ''Film/{{Creepshow}}'' can be spotted inside the Voorhees house.
** The jungle gym from the original version of the ''Film/TheBirds'' can be seen on the backyard of the Voorhees house during the final battle.
* CoversAlwaysLie: That strange metallic mask on the poster is not in the movie; Jason, when in his own body, still wears his familiar old one.
* FranchiseKiller: While the failure of [[Film/FridayThe13thPartVIIIJasonTakesManhattan the previous film]] had already caused Creator/{{Paramount}} to flog the franchise off to Creator/NewLineCinema, this film finished the job and threw the series into a hiatus that lasted for nearly a decade.
* OrphanedReference: At one point, Duke asks Jason if he remembers him, implying the two have a history together. That's because in an early script, Duke's girlfriend was killed by Jason, and the reason he knows so much about him is because he wanted revenge.
* WhatCouldHaveBeen:
** Original idea for a ninth ''Friday the 13th'' film was about Jason going to LA and being an OutsideGenreFoe for two rival street gangs who unite their forces to stop him.
** The character of Elias Voorhees was supposed to appear, either as Jason's father or brother.
** There was going to be a disturbing flashback revealing that Jason and his mother had [[ParentalIncest an incestuous relationship]].
* YouLookFamiliar: John D. [=LeMay=] had played a different character in ''Series/FridayThe13thTheSeries'', although that had nothing to do with the movies aside from the title.
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