* BigNameFan: Creator/QuentinTarantino named this as one of his all-time favorite movies. He ''would.''
* BrokenBase: Everyone generally likes the novel, and will typically also like either the film or the manga, but rarely both. Any of the three may be preferred though, and huge arguments are inevitable when trying to posit one version over the other. Especially on the most active forum for it, which is at [=IMDB=]. A [[CaptainObvious film forum]].
* CompleteMonster:
** Yonemi Kamon is the administrator of the Battle Royale Program, where high school students are forced to kill one another. His hobbies are watching students kill each other, killing students and joking about said students' deaths. After taking a schoolbus full of students including Shuuya and Yoshio to be transported into the Program, he later tells he also went and raped an orphanage director Shuuya and Yoshio had grown close to(just in case you didn't already get he's evil). What makes Yonemi so noteworthy (and awesome) as a villain is that unlike the movie portrayal of the Director, he doesn't even pretend to buy into the crap about maintaining order or protecting the honor of the Empire. ''Enjoys'' raping and killing, he's a huge fan of the Program because he gets to see teenagers deal with gut-wrenching emotions before dying horribly. Even ''soldiers'' are visibly nervous around him. [[spoiler: Considerable is also how he goes out. When the teacher is killed in the movie, it's because the main character shoots him. In the novel, Shogo Kawada shoves a sharpened pencil against his throat, killing the teacher. In the manga, they shove sharpened pencils into his nostrils ''and'' slam his head against a desk, which many readers think of as highly earned a demise]] for the character considered one of the most evil men ever depicted in manga.
** Kazuo Kiriyama from TheFilmOfTheBook stands in contrast to his [[TheStoic emotionless counterpart]] from the book and manga versions. Kiriyama in the film is a ruthless and psychopathic BloodKnight who voluntarily signed up for 'The Program' to be able to [[HuntingTheMostDangerousGame hunt down teenagers]] [[ForTheEvulz for fun.]] Throughout the film, Kiriyama wracks up the highest kill count, not caring if his victims are helpless or not, and after gunning down one girl, he uses a megaphone so everyone around can hear her pain and his execution of her. While he [[SilentAntagonist never speaks a word]], his SlasherSmile throughout the film speaks volumes for how much he is relishing his murder of everyone around him.
* ContestedSequel: The film sequel is... not popular. There's a reason it hasn't gotten any adaptations in any other media.
* CreepyAwesome: Kiriyama gives us the scariest scenes, but ''a lot'' of fans like him, [[{{Badass}} for]] [[HeroKiller several]] [[ImplacableMan reasons]].
* CrossesTheLineTwice: The film loves this trope.
** The most memorable example is Toshinori's death; in the original novel, Kazuo merely shoots him in the face, but in the movie, Kazuo chops his head off with a sword and then stuffs a grenade into his mouth, using the head as a bomb.
** Kyoichi tries to shoot Shuya, but Shogo blows off his arm. Now most of us would have give up there, but Kyoichi goes for his fallen arm, pries the gun loose with his teeth, and tries again. Only to take a shotgun blast through the gut. At that point, he would probably have tried to throw his entrails at Shogo, but the author decided to let him rest.
** Another occurs in the film version during [[spoiler: Mitsuko's death]]. [[spoiler: Kiriyama]] shoots her point blank in the chest: she gets back up. He shoots her again: she gets back up. [[RuleOfThree He shoots her again: she gets back up]]. She finally dies after the [[FourIsDeath fourth]] shot.
** [[spoiler:Kitano]]'s death scene in the film. [[spoiler:Having just revealed that he thought of Noriko as a daughter, he wants her to kill him, even threatening to shoot Noriko if she doesn't fire first. Instead, Shuya whips out his gun in retaliation, shooting Kitano to protect Noriko; as he falls, Kitano fires, showing that the gun in his hand was a mere water gun. A still-jittery Shuya fires again. Then, Kitano's cell phone starts ringing. Kitano, seen lying on the floor, presumably dead for a good seven or so seconds, immediately ''rises to his feet like nothing happened'' and answers the phone. He soon gets into an argument with his daughter Shiori, and in anger, throws the phone across the room and ''pulls out a '''real''' gun to blow it to smithereens.'' And if that wasn't enough, he samples the last of Noriko's cookies and remarks "Damn good cookies" before ''finally'' dying for good on a couch.]] It is ''impossible'' to take this part seriously.
* CultClassic: The film especially.
* DieForOurShip: Kayoko. Well, Takako Chigusa is one of, if not ''the'' coolest and most popular female character in the series. Granted, Kayoko [[spoiler: does die. [[KillThemAll Not that it helps Chigusa]].]]
* DracoInLeatherPants: The prevalent fandom attitude towards Mitsuko, who is a backstabber, a murderer (as well as the only student to have killed someone ''before'' the Program), and possibly even a rapist - explicitly so in the manga. May have been designed as such, the author having admitted she's his favourite female character.
* EnsembleDarkHorse: Takako Chigusa and Shinji Mimura.
** Despite the film's sequel not being well received, several students fit this trope amongst fans of the franchise. From the boys, they are Osamu Kasai and Masami Shibaki, due to their role in the final battle, and amongst the girls, they are Yuko Natsukawa, Rena Niima, Ryoko Hata, Kazumi Fukuda and Hibiki Yano, due to their more stand-out looks when compared to the rest of the female students.
* FandomRivalry: Needless to say, ''Battle Royale'' fans and fans of ''Literature/TheHungerGames'' do ''not'' get along.
* FanonDiscontinuity: Almost (though not quite) universally, the second film. Due to the BrokenBase however, all three versions have been hit with this depending on which version is favoured by that particular fan.
* FanPreferredCouple: There are a lot of fanfictions dedicated to Shinji and Takako.
* {{Fanon}}: Mitsuko is either a DepravedBisexual or PsychoLesbian. There is only one implication in the novel as evidence, as Mitsuko obviously prefers men to woman. It's batted about as commonly as "Shuya is the hero" (which is true) however, and fanfiction featuring Mitsuko that ''don't'' put her as one of those is all but non-existent. Seemingly even her expies in Original Battle Royales require it.
* IAmNotShazam: The words "Battle Royale" are never uttered once in the original book; the "AlternateUniverse" prologue makes it clear that the title is a reference to the ''kind'' of conflict the Program involves. In the manga, there's only one easy-to-miss AllInTheManual reference to the "Greater Eastasia Combat Experiment 68, also known as the Battle Royale Act".
** This does not apply to the other film version - there, the colloquial name for the Millenial Education Reform Act is "The Battle Royale Act". The logo also appears to be officially used by the government.
* IdiotPlot: The beginning of the movie says that Japan is affected by high unemployment and a violent and rebellious youth. The senate decides solving that problem wasting government resources (which could be used for employment programs) on a program that makes kids hating adults and rewards the most violent one.
** The program probably doesn't work very well because none of the kids knows that the program exists. Maybe only kids who are TooDumbToLive are attending school.
* InternetBackdraft: Expressing an opinion on forums of any kind regarding the proposed, stuck in DevelopmentHell American remake should only be done if you enjoy being ritually disembowelled. Opposing it will get you accusations of being an ItsPopularNowItSucks guy who fears it becoming mainstream, supporting it makes you a perpetuator of the rubbish Hollywood churns out via conveyor belt these days.
** And, then there's all the comparing/contrasting it with ''Literature/TheHungerGames''. Enter a ''Literature/BattleRoyale'' discussion as a fan of ''Literature/TheHungerGames'' and you will be ''whipped'' and called an idiot teenager.
* JerkassWoobie: Mitsuko.
** Mitsuru. Yes, thug he may be, but it's hard to not feel at least a ''little'' bad for him (especially in the manga) when he spends the majority of his narrative time going on about how ''amazing'' Kazuo is and how he's sure they're going to win the Program, and how he's Kazuo's best friend... [[spoiler:only to be shot by him and realize in his dying moments that Kazuo never cared about him, nor about the rest of the gang, at all.]]
* MarySue: In the novel and manga: Shuya, Mitsuko, Shinji and Kazuo. Yes, half of the ''[[ThirtySuePileup main cast]].'' Be wary of claiming any of the above is/isn't a Sue in any of the three media unless you have either a death wish or an extremely long essay by way of justification. Consensus among the fandom seems to be that the film largely removed the Sues, though Mitsuko remains a borderline and the main reason for Kazuo not being one is that he doesn't have enough personality to be considered a character at all.
** Arguably, Noriko becomes one in the manga, but is far more well rounded and developed in the film and novel.
* MisaimedFandom: While the story is about the terror of the violent, hopeless situation, a lot of young viewers see it as a cool action flick.
** Some quasi-sociopath fans seemingly wish they could enter the program with ''their'' class.
** Amazingly, there are fansites dedicated to admiring Kazuo.
* MoralEventHorizon: By default, you are forced to cross it if you want to survive the Program.
** The politicians who set up the Program crossed it by default.
** If Sakamochi didn't cross it by forcing a junior high school class to slaughter each other and happily telling them the rules, he definitely did when he raped the orphanage caretaker and then cruelly taunted Yoshitoki about it, causing him to explode with rage and get himself killed.
** Kazuo Kiriyama has the most notable crossing, however, because he did it in such a gratuitously cruel and sadistic way; by gunning down Yumiko and Yukiko while they were sending a message by megaphone to stop fighting. The film version of Kiriyama takes this even further by turning on the megaphone and broadcasting Yumiko's dying cries, then shooting her several more times for good measure.
** Kazushi Niida crosses this with his attack on Chigusa in all three versions.
** Yuko Sakaki feels she has crossed the MoralEventHorizon when she poisons one of her friends, which causes suspicion and sets off the whole massacre in the lighthouse. When she understands what her action has caused, she is DrivenToSuicide.
** In the manga, Mitsuko [[spoiler:raping a dying Yuichiro]], although she wasn't exactly ''compos mentis'' at the time.
* {{Narm}}: In the film; definitely NOT the film itself, but the English dubbing... Good God, that is some REALLY AWFUL English dubbing.
* NauseaFuel: Mitsuko's complete mental breakdown and [[spoiler:slow death at Kazuo Kiriyama's hands in the manga.]] Also a bit of a TearJerker.
* NightmareFuel: Almost every scene towards the end. The premise itself counts.
* OlderThanTheyThink: Unofficial alternate title in the U.S.: "[[TheOneWith That]] {{Manga}} that's sort of like ''Literature/TheHungerGames'' but came before it."
* OneSceneWonder: Almost anyone except the core half dozen may count depending on your preferences. Two are universally agreed upon though, one is Chigusa, who is definitely one of the best known characters despite having only two significant scenes, and they're consecutive. The other is Yukie Utsumi for the Lighthouse scene.
* ParanoiaFuel: The premise itself is a wonderful/horrifying example of this trope. You'll never look at your friends the same way again after seeing/reading this.
* PuritySue: Noriko is considered by some people to be one of these.
* {{Sequelitis}}: ''Film/BattleRoyale 2: Requiem'', up to and including the hamfisted attempt to tie in the 9/11 attacks. The extended version, ''Battle Royale 2: Revenge'' is considered better than Requiem, though not to redeem the worst flaws. May be because there is only one novel, that doesn't go beyond the lore of the first movie.
* {{Squick}}: The manga does not believe in the DiscretionShot. The novel and film aren't immune from this either, with all three versions of Niida's death being very brutal, and in the film Kazuo finishing off Yumiko by putting the megaphone to her mouth so that her dying moans are audible before firing his Uzi down the length of her torso definitely qualifies.
** The manga also does not shy away nudity and rape scenes.
* ThirtySuePileup: The entire main cast, in the novel. Arguably not changed in the manga, though the film does remove all but Mitsuko as a MarySue.
* TooCoolToLive: [[spoiler:Shinji Mimura]], who, in opinion of many, at least in the manga does better job as a protagonist (in [[spoiler:his]] subplot than the actual main character. Arguably near the end of the story [[spoiler:Kawada]] also qualifies, [[spoiler:because if he lived, he'd be overshadowing Shuuya in his victory over The Program]].
* UncannyValley: Kazuo's expressionless, [[DullEyesOfUnhapiness dead-eyed]] appearance in the manga.
* TheWoobie:
** Yoshio
** Megumi was bullied by Hirono in school. Her first scene has her hiding under a table, crying and wanting to go home. The memory of the strawberry tart her mother made for her was especially sad.
* UnfortunateImplications: A heavy implication that AllMenArePerverts. The one guy that doesn't fall for Mitsuko's tricks is an EmptyShell.
* ValuesDissonance: Several instances where Japanese cultural ideas that would will be lost on unknowing Western audiences, such as Kitano nonsensically answering a phone call and eating the last cookie from the bag [[spoiler: ''after'' he's been machine gunned and supposedly dropped dead on the couch]]. The classroom scene also qualifies as it parodies what is a very Japanese style of schooling.
* VillainSue: Kiriyama.
** Mitsuko in all three versions, though a [[LostInTranslation loose translation of her final words]] in the film means that it's less clear in that. The book and manga go to great lengths to justify her actions on the basis of her FreudianExcuse (see above). The character wants the audience to feel sorry for her, and while her classmates don't fall for it, Takami seemingly ''does''.