YMMV / Invader Zim: Enter the Florpus

• Accidental Aesop: Never let your enemy see you at your lowest point or let your weaknesses slip out in front of said enemy, considering Dib and Zim both take advantage of each other for doing just that.
• Alternative Character Interpretation: Is Professor Membrane really convinced everything strange is just a hallucination, or is he in deep denial from having his worldview shattered? There's enough evidence in the movie to suggest both, and according to fan theories, a third alternative is whether it's possible that Membrane is feigning disbelief because he's hiding something, typically non-human origin.
  • When Earth is being sucked into the Florpus, Zim declares that he's won, even though a.) this ostensibly was not part of his plan, and b.) he was specifically told that it would destroy him too. While this could be a characteristic example of I Reject Your Reality, some have interpreted him as being so disillusioned with the Tallest that he wants to die, and/or let them get sucked into the Florpus with him.
• Aluminum Christmas Trees: "Peace Day", which forms the main underpinning of the whole plot, is an actual United Nations-sanctioned international holiday celebrated on September 21st.
• Awesome Art:
  • The animation manages to retain the feel of the show, and yet is still fresh for a modern audience, with a more vibrant color palette that invokes the comics. To say nothing of the Florpus sequence at the climax, which involves flawlessly cycling through numerous different artstyles while the action keeps going.
  • The anime-style opening is a fantastic mixture of awesome and hilarious.
• Catharsis Factor: Plenty:
  • Those who absolutely were tired of Gaz's Flanderization-induced treatment of Dib will be happy that she's more of a Jerk with a Heart of Gold than anything. The same can be said for those who always loved Gaz but wanted to see that she cares about her brother.
  • The majority of the human characters, including all the Skool children, finally pay for their frustrating stupidity when they unwittingly provide Zim the means to transport Earth across space right in the path of the Irken Armada. They spend days terrified for their lives before the Earth gets sucked into the Florpus. Given what assholes the Skool children tended to be in regards to how they treated Dib, it's immensely satisfying to see most of them scared shitless.
  • Dib finally getting some recognition by his father and a victory that doesn't blow up in his face or humiliate him, even if Membrane doesn't believe in the supernatural still.
  • The fact that the Tallest are finally taken down will be therapeutic for those who hated their treatment of Zim and the worlds they conquer.
  • To some, finally seeing Zim fully succeed in taking over the Earth, even if his reign only lasted a couple days, had this effect for those who finally got to see the Villain Protagonist have his day.
• Character Rerailment: The film rolls back both Zim and Dib's Flanderization into Cosmic Playthings who never have anything go their way (to the point of encouraging Too Bleak, Stopped Caring), with Zim actually winning for once (albeit temporarily) and Dib actually ending the film on a genuinely cheery note concerning his relationship with his family.
• Crosses the Line Twice:
  • This piece of dialogue:
    GIR: I ate a baby there.
    Zim: He did.
  • "Children sing. People rejoice. Fatalities minimal."
  • Zim's Evil Plan involves putting children at risk of shark attacks and falling into a volcano, but that's okay because everything is solved with a song about peace and chicken with rice.
  • Zim and Dib end up inadvertently killing a planet of cute, larvae-like aliens who were celebrating their child's birthday.
• Ensemble Dark Horse: Zim's Mecha-Mook army, especially Lawrence, has attained some popularity for their designs and providing one of the best action sequences in the film alongside Professor Membrane. The fact that Zim seemingly named each of them, implying that he had some attachment, also helped.
• Fanfic Fuel: The Florpus, a Hyperspace Is a Scary Place dimension where alternate realities collide. Considering that at the end the Irken Armada is trapped in it it opens a way to all kinds of crossover fics.
  • The effects of the Irken Armada being trapped in the Florpus, seemingly for good is also a vast area which can lead to much potential exploration.
• Foe Romance Subtext
  • As per the norm with Dib and Zim, who continue to be rather up in each other's space and whose common ground (not receiving respect from Prof. Membrane and The Tallest) becomes a plot point. There's also the moments the two are slightly casual in their interactions (for example, Zim's reaction to seeing Dib at the membracelet celebration is to happily say "Hi, Dib! What are you doing here?") and the moment Zim snaps the Membraclet onto Dib's happily proffered arm, neither of them considering the more natural route of just handing it off.
  • It really gets going right from the start, where Dib has not only wasted a few years of his life spying on Zim's house and waiting for him to make a reappearance, but when he and Zim finally reunite and Zim doesn't recognize him in his flabby state, he sounds genuinely hurt as he says "But I'm Dib! We know each other!" While on Zim's end, there's him doing stretches in preparation for coming face to face with Dib again, and vehemently denying that he set up sprinklers for it like it was a special occasion.
  • Hell, this actually gets joked with in a couple blink-or-miss shots where Dib, during his insanity-ridden Zim watch, drew out one of his theories as Zim and what suspiciously looks like the ghost on Dib's shirt hugging with a heart above them◊ and accidentally wrote "Zib" instead of "Zim" on another one.◊ Even better, Clembrane (who's voiced by none other than Jhonen himself) out of no where asks Dib if he loves Zim, to which Dib angrily denies and screams that he hates him.
• Inferred Holocaust:
  • It's probably safe to say that, Earth aside, none of the planets (including, sadly, the adorable bee planet) in the Florpus' range were spared - and to make matters worse, the Florpus hole doesn't disappear after Membrane teleports the Earth back. Even Earth itself doesn't escape the hole without opening up a large fissure on its surface.
  • At one point, Dib and Zim end up running in place on a minuscule Baby Planet, causing it to rotate like crazy and likely killing all life in it while they're none the wiser.
• Memetic Mutation:
  • "NOT SCIENTIFICALLY POSSIBLE!" has proven a popular moment, sometimes unedited, sometimes edited to match another situation.
  • It's become popular for web-based artists to recreate the shot of Prof. Membrane introducing Dib as "my boy child" with different characters.
  • To a minor extent, some fans jokingly interpret a scene of the Red and Purple Tallest being comfortable with Zim's absence as a representation of Nickelodeon Studios nearly forgetting the show's existence after its cancellation.
  • "I'M TWELVE YEARS OLD!"
• Moral Event Horizon: Though they are as every bit as humorous as Zim, the Tallest were never meant to be as likable due to their relentless campaign of galactic conquest and their treatment of anyone shorter than them. But once they decided to destroy Earth just so they wouldn't have to put up with Zim anymore and so they wouldn't have to turn their fleet, you know they've officially reached the point of no return.
• Narm Charm: After seeing his father fall to his (apparent) death, Dib crash-lands back on Earth, gives Zim an absolutely furious Death Glare, and snarls, "Give. Me. The moose." Ridiculous? Yes. Dramatic? Yes. Awesome? Absolutely!
• Older Than They Think: Of some of the complaints, one is that Gaz now is too amicable towards Dib in this film, to the point of being out of character. But anyone who has kept up with the comics knows that this is the intended direction that Jhonen and company have taken her character for several years now. Opinions vary on this version of the character (see the show's main YMMV page), but Gaz has behaved like this for four years by this film's release.
• Squick: The Membranes' living room covered from floor to ceiling in huge splatters of chocolate pudding, mostly because it looks like... something else. And the vomiting noise GIR makes when he swallows a bowlful of the stuff.
• They Wasted a Perfectly Good Character: Several fans were looking forward to the return of several Ensemble Dark Horse characters like Tak, Skoodge, Sizz-Lor, and the Resisty and the possibility that all of their plot threads would be tied up. The closest they got was Tak's AI-ship and maybe the fall of the Irken Empire, depending on how seriously you want to take the Tallest and most of the Armada being trapped in the Florpus.
• What Do You Mean, It's Not Political?: American political issues of 2017-2019 seem to be reflected in certain narrative choices, like deciding not to treat the show's eponymous buffoonish egomaniac with aspirations of ultimate political power as an Ineffectual Sympathetic Villain Protagonist this time.