These are what we call the 'YMMV items.' Things that some people find in this work. We call them 'your mileage might vary' because not everyone sees these things in the same way. This starts discussions in the trope lists, a thing we don't want. Please use the discussion page if you'd like to discuss any of these items.
Crosses the Line Twice: The time bomb that announces it's a time bomb and reads off its own countdown is hilarious. Even Rico winces over it, as he's dropping it. It is described as a terror weapon. It isn't intended to kill the enemy, its purpose is to scare the shit out of them.
Jerkass Has a Point / Strawman Has a Point: Even readers who disagree with the book's heavy-handed political statements are likely to find the book thought-provoking based on how, exactly, they disagree.
Mary Suetopia: The society in the novel was also a sort of Mary Suetopia, based on Heinlein's later conservative ideals. Of course, the films subvert this into a Straw Dystopia, but not an actualized one. The book did preach a "military democracy" (a completely nonsensical contradiction in terms, given that every military throughout history has operated through a hierarchical structure and not through popular vote) that utilized corporal punishment for crimes, and capital punishment (not just for murder but other major violent crimes) even with insane persons; the given rationale for the society was that "it works," using only the fictitious evidence of the book itself, while scorning all 20th century conventions as "primitive myths" which were naturally proven wrong by "advanced scientific proofs" of Heinlein's Suetopian future-world, such as the supposed need to corporeally punish dogs in order to housebreak them (which, you will note, most dog experts agree is a terrible idea, these days). That section was comparing never or barely disciplining a puppy for messing in the house, then shooting it as an adult when it continued its misbehavior, to comparative behavior in not punishing juvenile delinquents and then executing the people when they became adults and continued their crimes. (Though seriously, who shoots their dog over peeing on the rug?)
Aliens is often considered to be the most faithful adaptation of Starship Troopers ever made, due to the various similarities. Now, on the flip side, the Space Marines of Aliens themselves were the inspiration for other Space Marines, such as the ones in the film of Starship Troopers.
Halo owes a lot to ST, especially with the armor and ODST's drop pods. Its spinoff game Halo 3: ODST featuring those shock troopers fighting the Drones.
Starcraft has plenty of references to and points of inspiration from ST as well.
Along the same lines Paul Verhoeven has commented on how based the Propaganda segments were modeled after those played in historical authoritarian regimes during wartime and also how he set up the Bugs to be clearly superior in every way to the humans opposing them. Combining the two together can imply that the Surprisingly Happy Ending portrayed in the final Propaganda cut scene is simply a case of the Government trying to hide the Awful Truth of the probable defeat.
Anvilicious: Paul Verhoeven knows of no other way to present a message.
Though for some people the message is still lost, and the movie appears to be a gung-ho sci-fi romp in which War is Awesome.
Fan-Preferred Couple: In the DVD commentary, director Paul Verhoeven says fans wanted Carmen to die and Johnny to end up with Dizzy, proving that it isn't only fans who have preferred couples. Considering that in the original book Dizzy is male and Johnny and Carmen have at most a one-night stand together, this wouldn't have been such a bad change compared to most of the rest of the changes Verhoeven actually did make.
"Funny Aneurysm" Moment: In-Universe example in the first movie: the recruitment commercial with the cute, eight year old kid in uniform saying, "I'm doing my part, too!" and everyone laughs. Cut to the last battle in the movie where Johnny and Ace command a squadron of Child Soldiers, not much older than that first kid, and it's not funny anymore...
Misaimed Fandom: Despite the fact that Paul Verhoeven is anti-war and anti-fascism (likely from having bombs dropped by the Allies in his backyard as a child when aiming at fascists), people will accuse him from now until judgment day that the movie glorifies war, fascism, and blind, jingoistic patriotism. To think Paul Verhoeven made the mistake of being too subtle.
This expands to the creators of the sequel as well, who clearly missed out the implication that the Arachnids were the real good guys who were being provoked by the xenophobic and jingoistic humans, and portrayed the humans as the lesser evil.
Misaimed Marketing: A toyline was released by Galoob in 1997. Yes, a toyline based on an R-rated film that has lots of blood, gore, political satire, and nudity.
"Luckily, the script writers realized what they were working with and wrote some of the cheesiest, most badass dialogue in any movie ever. I don't know how they did it, but every single line in the movie is completely corny but awesome at the same time. This results in the audience getting a good laugh in the fifteen minutes of the movie when people aren't getting their arms ripped off or aliens aren't being exploded into pieces and spewing green fluid all over the place."
Special Effects Failure: The sequels to the original, and "Marauder" to "Hero of The Federation" (though only because "Hero" bought back Tippett Studio for the bugs)... Additionally, since the majority of the bugs were created via CGI, and thus, were never on set for the actors to aim at, the troopers often end up pointing their rifles over the bugs' heads during the battle sequences.
What The Hell, Casting Agency?: Casper Van Dien, Denise Richards, and Neil Patrick Harris playing Argentinean high schoolers... Verhoeven aimed for a Do Not Do This Cool Thing-baiting feel with the casting, going for stupidly beautiful people who would be far more at home in a soap opera — and then not telling them the film was a satire, leaving them to play their roles deadly serious.
Given the other elements of political/social commentary in the film - i.e. the blatant lies perpetuated in saying the Bugs dropped a meteor on Buenos Aires to justify the ongoing war, it's also very likely that these incredibly white teenagers with their Latin-American names were a commentary on American expansionism.
Demonic Spiders/Goddamned Bats: Any small bug except the Chariots/Sand Beetles, but the Blaster Bug takes the cake for being both of these; it's essentially a tiny Plasma Bug. It attacks by leaping speedily at and kill you or a trooper with a few plasma blasts.
This OVA is produced by (in case you haven't read the main page) Sunrise. In the one Gundam movie that almost no one liked, G Saviour, the CONSENT troops reused the Mobile Infantry armor from the first movie.