* BestKnownForTheFanservice: Yep, you guessed it: by ''far'' the most talked-about scene is the underwater nude ballet.
* BigLippedAlligatorMoment:
** The nude ballet scene. The Italian aria just adds to the [[strike: weirdness]] awesome.
** The infamous GroinAttack. Could also be seen as {{Narm}} assuming it was meant to be dramatic.
** The lizard-like creature that appears in the original. It's presumably another government experiment, but never explained.
* CrossesTheLineTwice: They took my [[spoiler:penis]]!
* EnsembleDarkHorse:
** In just two short scenes Christopher Lloyd manages to upstage everybody else in the film.
** Kelly Brooks's character, Danni, is pretty much the fan favorite of the film.
* NightmareFuel:
** The piranhas from the original looked like props and did kind of look ghoulish. Here, they look positively demonic...and there's a good chance that they HATE you as well as want you for food. The last shot of one of the trailers can attest.
** The massacre. Words do not do justice. And the second film had them attacking a waterpark!
* SoBadItsGood: A likely intentional example of this with both this and ''3DD''.
* SpecialEffectsFailure: The gore in the 3D remake. Almost inverted; a lot of the time it comes across as ''too'' realistic, [[NightmareFuel which makes it more disturbing than]] BloodyHilarious.
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