[[quoteright:350:http://static.tvtropes.org/pmwiki/pub/images/Fourze-TVT_3294.jpg]]
[[caption-width-right:350: [[CatchPhrase UCHUU KITAAAAAAA!!]][[note]]Translation: ''IT'S SPACE TIIIIIIIIIIME![=/=]SPACE IS HEEEEEERE!''[[/note]]]]

->"''Space...a wondrous world, filled with infinite cosmic energy. Using the Astro Switches, these young people will open the door to the future of space. [[GratuitousEnglish Space on your hand!]] Reach out and seize the universe!''"
--> Opening Narration

The 2011-2012 ''Franchise/KamenRider'' series and the thirteenth entry in the franchise's Heisei era. Pronounced "Four-Zeh" as in "'''Four'''-'''Ze'''ro",[[note]]In Japanese phonetics[[/note]] i.e. ''Franchise/KamenRider'''s 40th anniversary series.

Amanogawa High School is a school that encourages every one of its students to [[BeYourself be themselves]], creating a diverse (but chaotic) student body. Arriving into this bedlam is NewTransferStudent Gentaro Kisaragi, a cool guy with a {{Delinquent}} image who immediately vows to [[MagneticHero become friends with every single student in the school]].

When the school is attacked by [[MonsterOfTheWeek mysterious monsters named Zodiarts]], Gentaro receives the [[TransformationTrinket Fourze Driver and Astro Switches]] from fellow students Kengo Utahoshi and Yuki Jojima. Using their power, he transforms into Kamen Rider Fourze to protect the students of Amanogawa High. Fourze can equip up to four Astro Switches at once, using them to equip attachments onto his arms and legs that boost his combat potential.

The plot's main driving element is Gentaro's goal in [[ThePowerOfFriendship making friends with everyone in the school, even the Zodiarts Switchers.]] As such, many of the characters learn important life lessons from Gentaro as he tries not only to fight monsters, but also to befriend them and save them from themselves. The Zodiarts themselves show parallels to the darker sides of humanity and with each one that appears, it becomes harder and harder to free them.
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!! Tropes Associated with Kamen Rider Fourze:
* AbsurdlyPowerfulStudentCouncil: The premise of #39-40. So powerful they can make Gentaro follow Amanogawa rules for the uniform AND hairstyle!
* AdaptationalVillainy
** [[spoiler:In TheMovie, it turns out the {{Big Bad}}s are really the two Ironmen based on Grounzel and Skyzel from ''SpaceIronmenKyodain'', while the Black Knight, a villain from that exact same show, [[InvertedTrope is one of the good guys]] Also, the giant orbital weapons platform the villains are controlling is based on Daitetsujin 17 (which transforms from a space fortress into a robot just like in its original show).]]
*** Case in point, the closest thing they were to actual heroes was a situation where [[TheOnlyOneAllowedToDefeatYou they fought the bad guys just so that they can have a shot at attacking a good guy]].
** This is done again in [[spoiler:Movie Wars Ultimatum, in which the three {{Big Bad}}s are based off Akumaizer 3. There was also Inazuman, though he had a HeelFaceTurn.]]
* AbsenteeActor: Averted, as in episodes #6 and #7 has Shun and Tomoko get just one appearance, with varying relevance to the plot (probably to set up their [[SpoilerOpening upcoming involvement]] as future members of the Kamen Rider Club). It's even lampshaded in #7 when Gentaro asks himself; "What was I thinking, how would he know about that?"
** Also averted in #8 with Sonoda and Ohsugi showing up in school ''on a Sunday''.
** Finally used in #15. Every KRC member except JK appears because (in-universe) JK is hosting a Christmas Edition of his JK Night party.
** Played straight again with [[spoiler:Tomoko]] in #41. [[spoiler: Justified since she is stuck in the Dark Nebula]].
* AccidentalAimingSkills: In #7, during detention class, Shun, angry at Gentaro painting him a moustache as payback for throwing away the latter's detention papers[[note]]All students are supposed to write the kanji Reflection a thousand times[[/note]], corners him. When Gentaro tries to get off, his brush[[note]]Said detention giver gives Gentaro the task of doing his kanji with a caligraphy brush (hence it'll take longer for him to do.)[[/note]] flies away and accidentally paints ''[[MundaneMadeAwesome a devil-head splatter]]'' all over [[{{Goth}} Tomoko's]] detention paper.
* AchievementsInIgnorance: How Gentaro makes it all the way into the Rabbit Hatch on the moon in #1.
* AlasPoorVillain: [[spoiler:Virgo's death, which depressed even the BigBad, who was his closest ally]].
** [[spoiler: Gamou gets this as well as he realizes his attempts in meeting the Presenters were in vain. Gentaro forgives him even though he ''killed'' Kengo and gives him the SecretHandshake. The last we see of him? He has a flashback of when he was a little boy reaching out into space before transforming into Aquarius Zodiarts to heal the Core Switch before disappearing into Cosmic Energy.]]
* AnAesop: Aside from #1-2, there seems to be a trend of aesops similar to what happened in ''Gokaiger'':
** #3-4: "Do stuff that's beneficial to yourself and not to latch onto others."
** #5-6: "If you want to be friends with someone, you have to accept who they are."
** #7-8: "You must decide your own life and not let others decide for you."
** #9-10: "It's all right to be yourself and to know that you're never alone."
** #11-12: "There are people who are willing to help you with your problems; don't push them away."
** #13-14: "Love can break through even the most powerful of temptations."
** #15-16: "Art is not about perfection, but more of the love and compassion you put into it."
** #17-18: "If you want to be friends with others, you have to show who you really are."
** #19-20: "Even if you have opposite ideals, that doesn't mean you can't still be friends."
** #21-22: "Even when times are tough, you just have to persevere."
** #23-24: "You can be a hero just by doing the right thing."
** #25-26: "Growing up and graduating is a part of life, but you should look forward for a better future."
** #27-28: "The best feeling in the world is to be able to make people smile."
** #29-30: "Not all people are untrustworthy; there are people who will always be friends with you through and through."
** #31-32: "Friendship is the power that can conquer the impossible. These are the bonds that shape humanity."
** #33-34: "Everyone has the right to be normal for a change, even superheroes."
** #35-36: "It's okay to have your dreams, but don't use shortcuts to achieve them. Use your passion, heart and friends to do so."
** #37-38: "Do not let your passion for your dreams ruin everything around you."
** #39-40: "Do not confuse your true feelings with your goals."
** #41-42: "The person you thought you know isn't who you think he/she is." It goes both ways of good and evil.
** #43-44: "We all have our dark sides, but real friends will accept you for who you are, good and bad."
** #45-46: "Do not trust strangers." As in believing your enemy.
** #47-48: "All things must come to an end, but that doesn't mean you should not live things to the fullest."
* AllThereInTheManual: SOLU, the substance that appears in ''Movie War Megamax'', is actually an acronym for "Seeds Of Life from the Universe". This doesn't get mentioned anywhere official, but you can hear Souta Fukushi (Gentaro's actor) say it in half-decent GratuitousEnglish in the [[Series/KamenRiderSuper1 Super-1]] quiz short.
* AllYourBaseAreBelongToUs: [[spoiler: The Leo Zodiarts invades the Rabbit Hutch in the penultimate episode and starts wrecking up the place. By the finale, the entire structure AND part of the school have been leveled]].
* AlphaStrike: Done by enabling just the shooting switches, such as Fire States+Launcher+Gatling.
* ArcWords: There is lots of mention of Hayabusa the satellite, from Yuki's interest, [[RummageFail cosplay]] and song of it, to Shun's last name being rearranged to say space craft.
* ArtificialGravity: In the [[SpaceStation Rabbit Hatch]], there's a rather large switch on the wall with the label "Gravity Control".
* ArtisticLicenseEngineering: #2 has Fourze using Massigler to attack the Orion Zordiarts by grinding it with the front wheel, until it spews sparks. That's right, Massigler is the only motorcycle in existence with ''front wheel drive!''
* AscendedMeme: Lots of fans have noted that Fourze looks a lot like Skyzel of ''SpaceIronmenKyodain''. Guess who he's starring with in his movie?
* BackForTheFinale: [[spoiler:Nadeshiko returns in ''Movie War Ultimatum'', explaining that she met XVII in space and she asked him to bring her to Earth so she could see Gentaro again. At the end of the film we see her and XVII saying goodbye as they return to space.]]
* BadBadActing: Yuki's play in #13, known as "The Theater of Youth". Long story short: [[ItMakesSenseInContext Kengo ''really'' does not want to play as Miura.]]
* BananaPeel: In #3, Gentaro slipped on a fresh one thrown by one member of Miu's GirlPosse.
* BattleAmongstTheFlames: Fire States in #9.
* BeAsUnhelpfulAsPossible: In # 25, Altar, Chameleon, and Dragon Zodiarts reappear and the original switchers neither confirm nor deny the KRC's suspicions. [[spoiler: They were just [[RedHerring Red Herrings]] anyway, though Ritsuko and Tamae did get offended when Gentaro asked them.]]
* BeautyContest: #3 centers on one. Keeping with the show's use of high school tropes, it's pretty obvious [[CurbStompBattle it's in the bag]] for [[AlphaBitch Miu]] from the get-go. Gentaro tries to turn it into a real contest by saying he'll become her friend if he can find someone who can beat her. Unfortunately, the only candidate he can find is [[TheDitz Yuki]]. And then episode then ends on a wham when a hidden-camera footage is played on the screen showing Miu throwing away fan letters and gifts from admirers, [[BreakTheHaughty turning most of the student body against her]].
* BigEater: Jun, one of Miu's sidekicks, is almost always seen eating, usually candy and snacks. She even has bananas hanging from the inside of her locker door!
* BigNo: Shun when he was daydreaming for Miu to accept his request for the prom which ended up being rejected ''hard''.
* BittersweetEnding: #38 has Gentaro free Erin from the influence of the Zodiarts Switch, [[spoiler: but Gamou insists that her memory gets erased so she remembers nothing prior to meeting Gentaro and Yuki. Thankfully, the ending gives us a positive note.]]
* BodyHorror: [[color:red:Mag]][[color:blue:net]] States' finishing move ''implodes'' the target.
* BookEnds: #9 starts with Yuki and Gentaro racing to school; #10 ends with [[spoiler:Tomoko joining them.]]
** #15 shows the debut of Motoyama on the rooftop with his painting of Mount Fuji. Where do we see him in the following episode? Back on that rooftop, redoing that same picture and Abe meeting up with him.
** Potechokin was the first Foodroid Miu played with. In #26, it's ''helping her pack.''
** The finale has two: when Gentaro uses the Rocket Drill Kick, the drill penetrates the ground and he spins around a few times. Also, when we first met Gentaro, it was when Kengo had a letter in his hand that he chucked into the water. [[spoiler: Just as Gentaro is about to do that with Kengo's farewell letter, Kengo appears behind him. He even scolds Gentaro using the same words Gentaro mentioned to him when they first met.]]
--> [[spoiler: "When someone gives you a letter, you better read it! Be sure to properly address their feelings."]]
* BreakingTheBonds: Subverted in #10; Gentaro supposedly uses "the double energy of youth" to break his bonds, but it turns out that Kengo just summoned a Foodroid to cut the bonds.
--> '''JK: '''Oh, that makes more sense.'''
* BrickJoke: Tomoko with her devil-head inkblot, from #7 to #8.
** That corner in the back of the school where the hoodlums attack Gentaro and fail (twice) is shown vacant in #5. Then #7 reveals that the hoodlums have found an alternate hangout outside school grounds.
** A visual CallBack to the "trash" label for Gentaro appears in #6 - he's left for dead on an empty grassy slope, but when Tomoko finds him later on, he's suddenly surrounded by actual trash.
** In #9, Gentaro and Yuki's reason for running is to be energized with the "full power of youth" returns when [[MundaneMadeAwesome Gentaro successfully frees himself from rope binding him.]]...then it's just revealed that Kengo got his foodroids to cut the ropes.
** Remember how the fire alarm was ringing in the beginning of #21? #22 explains what happened; Ms. Haruka Utsugi ''kicked it in frustration''.
** In #18, Ohsugi starts screaming out "TEST!" to the class; five episodes later, they return and the countdown focuses on Gentaro's test. [[spoiler: For your information, ''he got a 4''.]]
* CallBack: In #37, Ryusei temporarily reverts to his StepfordSmiler front from before he was outed as Meteor. This time however, it's to cover the fact that [[NotSoStoic he was the first to crack]] [[CabinFever during the astronaut test.]]
* CanonWelding: In #33 [[spoiler:Foundation X reappears as Gamou's financial backers, tying Fourze into the same continuity started by ''Double'' and ''OOO''.]]
** As early as episode two, this is hinted at, as Tomoko explains what a Kamen Rider is while showing videos of [[Series/KamenRider the first Kamen Rider]], [[Series/KamenRiderSuper1 Super-1]], [[Series/KamenRiderBlackRX Black RX]], [[Series/KamenRiderKuuga and Kuuga]], along with the Fuuto Tower. Movie Wars Megamax, which is definitely canon as it affects the latter half of Fourze, ties Double and OOO into this as well, along with the first seven riders. At the least, this means that most of the Showa Riders, Kuuga, and the "Neo-Heisei" Riders all share the same verse.
* CatchPhrase: Gentarou has three of them as Fourze alone.
** When first transformed: "[[IncomingHam IT'S SPACE TIME!]]"
** When facing off against an enemy: "I'm Kamen Rider Fourze! Let's settle this one-on-one!"
** When [[spoiler: activating Cosmic States]]: "Our friendship will take on the universe!
* CerebusRetcon: TheMovie is set after TheReveal of [[spoiler:Sonoda as Scorpio Horoscopes]], so the [[{{Omake}} Net Movies]] actually take this approach by showing how the Zodiarts under [[spoiler:her]] wing came about, and even shows [[spoiler:her]] going through a nervous breakdown following the repeated defeats!
* CerebusRollercoaster: AND HOW. First, you'll be seeing Gentaro goofing around as Fourze, then you see [[spoiler: a creepy guy trying to kill girls by driving a bus off of an unfinished highway]]. Then you'll see a student who likes making puns [[spoiler: become one of the worst of all the Zodiarts]] and after that, it's the HighSchoolDance. THEN we have [[spoiler: Gentaro dying by the hands of the other Kamen Rider]] before the annual school field trip to Kyoto. And it only gets crazier from there.
* ChekhovsGun: The Meteor Storm {{Beyblade}}'s ability to absorb and reuse all damage comes up again in #44, as it turns out to be the best thing to counter the Gemini ActionBomb ability.
* ChristmasEpisode: Episodes 15 and 16 involve around Yuki helping the Glee Club, and the Kamen Rider Club having their own Christmas Party.
* ClassTrip: The gang going to Kyoto in #33-#34.
* ConservationOfNinjutsu: Played straight. Scorpion's Dustards (read: Mooks) were able to overwhelm Fourze when they were attacking individually. Once they started attacking at the same time, Fourze got a break.
* ContinuityNod: When seeing the interior of the Rabbit Hatch, one can notice two posters on the wall: One of Miu from #3, and another about JK Night in #5.
** Miura gets mentioned in #8, stating that he was currently in the hospital after using the Zodiarts Switch. He appears in Episode 13-14, with the Kamen Rider Club trying to help him recover after becoming a Zodiarts.
** Chouske is seen in #7 with all the other delinquents in a new hangout so Gentaro doesn't beat them up again.
** Yuki brings up the witches of #9-10 to scare off Ohsugi in #11 - but he's stricken with acute GenreBlindness.
** After the events in #11-12, Gentaro and company are seen screwing the locker to the wall.
** In ''Movie Wars [=MegaMax=]'', not only does [[Series/KamenRiderOOO Eiji]] remember Gentaro from ''Wonderful! Shogun and the 21 Core Medals'', but [[Series/KamenRiderDouble Shotaro]] brings up meeting Eiji way back in ''A to Z: The Gaia Memories of Fate'' and their second meeting in ''Movie War Core''.
** TheMovie ''Let's Go to Space!'' brings back enough past characters to operate all 40 Astro Switches at once, and brings back the Clear Drill Switch from the Hyper Battle Video, having it materialize when Gentaro goes into Meteor Fusion States.
** And the cherry on top comes in ''Movie Wars Ultimatum'': Not only do we get links back to [[spoiler:Eternal]]'s part in ''W Forever'', ''Let's Go To Space!!'', AND ''Megamax'', but Wizard's appearance in ''Megamax'' gets explained [[spoiler:AND set up via StableTimeLoop]]. Also, remember the kickboxing teacher? She's back. ''With her own fight scene''.
* CouchGag: The camera goes into a hard zoom of a random Astro or Zodiarts Switch before the OP starts every week.
* CrapsaccharineWorld: This show is all about friendship and buddies being with you...it also has some of the cruelest monsters, [[spoiler: the hero ''dies'', two villains get horrible deaths, the GenkiGirl gets broken badly and the BigBad wants to annihilate all of Japan]]. Very jarring, to say the least.
* CreateYourOwnVillain: InvertedTrope. Tachibana, who gave Ryuusei his powers, is actually [[spoiler: Virgo.]]
* {{Crossover}}: Of course, the now-annual tradition of a ''Movie Wars'' crossover applies; however, this time Fourze won't just be meeting his immediate predecessor [[Series/KamenRiderOOO OOO]], but also [[Series/KamenRiderDouble Double]], [[Series/KamenRider Riders 1 and 2]], [[Series/KamenRiderV3 V3 and Riderman]], [[Series/KamenRiderX X-Rider]], [[Series/KamenRiderAmazon Amazon]], and [[Series/KamenRiderStronger Stronger]].
** Fourze and Meteor are the actual protagonists of ''VideoGame/AllKamenRiderGenerations 2'' CrisisCrossover game. And did I mention you that an Astro Switch is what caused the Crossover to happen?
** A([[Series/KamenRiderDenO nother]]) series of crossover shorts with ''Anime/ShinChan'' [[http://henshinjustice.com/2012/03/25/crayon-shin-chan-to-cross-over-with-kamen-rider-fourze/ has been announced]] aired during both shows as a way to honor both series' anniversaries.
** Though not an official crossover, Pixiv artists had a field day when it turned out Fourze had a Kyoto field day episode the same time ''Anime/SmilePrettyCure'' did.
* {{Cult}}: "The Ugly Ducklings"
* CurbStompBattle: The Leo Zodiarts does to this Fourze and Meteor a multitude of times. It is then played completely straight for [[spoiler:the Sagittarius Zodiarts with his debut in #42, who beats the utter living crap out of Fourze and Meteor, without even taking a SINGLE scratch.]]
** [[spoiler:Gentaro gets one in the final episode against [[BigBad Sagittarius Nova]]... WHILE NOT TRANSFORMED! He only transforms one last time to finish off Sagittarius Nova with the [[FinishingMove Youth Galaxy Big Big ''Big'' Drill Kick]].]]
* CuteMachines: The Foodroid buddies. Miu absolutely adores these cute little guys.
* CutenessProximity: Every time a new Foodroid has debuted, we see Miu gush over how cute they are.
* DarkestHour: Two of them.
** #41, hands down. [[spoiler:Virgo single-handedly destroys the Kamen Rider Club, driving off most of the group by threatening to kill them and throwing Tomoko and Ryusei into the Dark Nebula, which means Gentaro can't use Cosmic States. Oh, and Virgo was also Tachibana the whole time.]]
** The penultimate episode, #47. [[spoiler:Kengo is revealed as the Core Child, the human-shaped form of the [[{{SealedInAPersonShapedCan}} Core Switch]]. Thanks to Libra the episode before, the Zodiarts discover the Rabbit Hatch and destroy it despite Ryuusei's efforts to defend it. And to make matters worse, as Kengo is trying to fulfill his destiny as the Core Child to bring information on humanity to the Presenters, Sagittarius goes Supernova, [[{{CurbStompBattle}} stops him from using the Fourze Driver to leave, and destroys the Core Switch, killing Kengo as a result.]]]]
* ADayInTheLimelight: Each character of the main cast have been getting a 2-episode arc for CharacterDevelopment.
* DealWithTheDevil: Invoked in #11 when [[spoiler:Yuki winds up begging ''the MonsterOfTheWeek'' to track down the Rabbit Hatch locker. Said monster goes back on his deal, though.]]
** The Switchers seem like a straight example, except the Scorpion Zodiarts never lays out any terms apart from "make a wish to the stars".
** In #31 [[spoiler: Ryuusei makes a deal with the Aries Zodiarts to awaken his Friend Jiro. All Ryuusei has to do is ''kill Fourze!'' And worse? Ryuusei ''did''.]]
* DebutQueue: While all the main characters in the Kamen Rider Club have appeared as early as episode 1, the first few arcs have focused on each of the members joining.
* DefeatMeansFriendship: Gentaro seems to be taking a page from [[LyricalNanoha Nanoha's]] book, as he (or one of his posse) will comfort the VictimOfTheWeek afterwards.
** Episodes 3 and 4 have a twist on this: The MonsterOfTheWeek (aka Tamae) makes Miu a FallenPrincess by revealing her inner bitch to the students via EngineeredPublicConfession, all to win the school's BeautyContest. Gentaro convinces her not to give up but to do things fair and square, resulting in Miu giving a heartfelt speech that nets her the crown, all of which causes her to warm up to Gentaro and join his crew.
** [[spoiler:Subverted with the Pyxis Zodiarts, who was such a monster that Gentaro just [[DoWithHimAsYouWill leaves him at the mercy of his victims.]]]]
* DefaceOfTheMoon: Spoofed. Gentaro used the Pen Switch to write "Merry Christmas" in katakana and a poorly drawn reindeer on the moon. Kengo was not amused at the slightest.
* {{Delinquent}}: The group that Gentaro beats up in #2 and #3.
** Gentaro actually dress as one but is actually a NiceGuy.
* DoesThisRemindYouOfAnything: #39. The first time we see the AbsurdlyPowerfulStudentCouncil in action, they're ''marching, in a manner akin to goose-stepping''.
** After one is freed from the use of the Zodiarts Switch, they start getting withdrawal symptoms. And the play that was done in #13 can also be taken in as an anti-drug campaign.
* DoWithHimAsYouWill: [[spoiler:Hiroki Makise, the Pyxis Zodiarts, is left at the mercy of his victims by Gentaro. Do ''not'' [[ItsPersonal make things personal for Gentaro.]]]]
* DramaticIrony: The audience knows the identities of Libra and Scorpio as early as Episodes #13 and 14 [[spoiler: It took our protagonists ''32'' episodes for them to find out who they've been fighting.]]
* DynamicEntry: A teaser for the ''Series/KamenRiderOOO'' summer movie reveals him making his EarlyBirdCameo this way, coming down in a fireball to help OOO fight [[BigBad Gara]].
** Yuki does this to Gentaro with a spinning drop kick[[note]]Or as she calls it, "Armstrong Kick!"[[/note]]. ON THE MOON. See ATwinkleInTheSky to see its results.
* EarlyBirdCameo: Fourze makes his debut in ''[[Series/KamenRiderOOO The Shogun and 21 Core Medals]]''.
** Yuki gets two: one in the OOO movie with Gentaro and in the end credits of OOO's final episode with Kengo.
** As has become tradition, Fourze's successor [[Series/KamenRiderWizard Wizard]] made his first appearance in ''Let's Go to Space!'', but he only appears transformed. He also appears in the finale [[spoiler: unintentionally disrupting Shun's attempt to propose to Miu with his own bling]].
* ElementalPowers:
** Astro Switches
*** AnIcePerson: The Freeze Switch.
*** BlowYouAway: The Aero Switch.
*** DishingOutDirt: The Schop Switch.
*** GravityMaster: The actual power of the Giantfoot Switch.
*** LightEmUp: The Flash Switch.
*** MakeMeWannaShout: The Beat Switch.
*** MakingASplash: The Water Switch.
** States Forms
*** NonElemental: Base, Rocket and Rocket Drill States.
*** ShockAndAwe: Elek States
*** PlayingWithFire[=/=]MakingASplash: Fire States, depending on the mode of the Hee-Hack Gun.
*** ExtraOreDinary: Magnet States, by manipulating surrounding metal through its magnetism.
*** SpaceMaster: Cosmic States, who can create a warp drive to send the enemy into space for its FinishingMove.
* EpicTrackingShot: Every-time Gentaro transforms into Fourze when something important or significant happens, he will do his CatchPhrase and the camera moves to him up to outer space. [[UpToEleven With each one going further and further into space]][[note]]With the latest in #44 showing multiple galaxy and nebula[[/note]]
* EventFlag: [[ConversationalTroping Discussed]] in TheMovie, where Shun says "You go on ahead, I'll handle this!", which JK immediately [[LampshadeHanging points out]] that that's a death flag if ever there was one. Shun responds that he can't die until he gets back to Earth and has one more date with Miu, while JK quietly mutters "He just keeps raising that flag..."
* EvolvingCredits: Like with ''OOO'', the opening is usually adjusted to highlight the latest Switches, but it's stopped at Switch #20 for now.
** Episode 19's opening takes out Sonoda and adds Meteor. Episode 21's opening adds Magnet States and showcases the Switches starting with #21 (Stealth).
** #35 adds Cosmic into the States montage. It also added Ryuusei into more of the Kamen Rider Club Shots, updated the States (including adding Meteor Storm into the credits), and Miu, Shun, Ohsugi-sensei and Gamou have new clips for the opening.
* {{Fanservice}}: #41 gives us a male example with Shun in the shower. And he's still naked when Virgo Zodiarts teleports into his bathroom.
** Much earlier in the series, in #3, we have Miu and her friends in swimsuits. Not even a totally gratuitous scene, since [[spoiler:Miu's reaction to her fans' gifts are being secretly filmed and are used against her during the School Queen contest at the end of the same episode]].
* FirstContact: [[spoiler:The reason the Presenters sent the Core Switches throughout the universe according to Kengo. A race who could decipher the data in the Core Switch is deemed worthy to meet with the Presenters.]]
* FiveManBand
** TheHero: Gentaro
** TheLancer[=/=]TheSmartGuy: Kengo
** TheBigGuy: Shun [[note]]Shun is a secondary Lancer.[[/note]]
** KidAppealCharacter: JK [[note]]JK is a secondary Smart Guy.[[/note]]
** TheHeart: Yuki
** TheChick: Miu and Tomoko share this position.
** SixthRanger: Ryusei
** [[spoiler:TheMentor: Ohsugi]]
* FreezeFrameBonus: In the EvolvingCredits for #10 onwards, during the montage of Fourze using his various switches, Shield!Fourze flashes a peace sign from behind his shield.
** #15. Some book artist thinks Perseus looked like Creator/OrlandoBloom.
** The M-Bus Satellite was actually seen in the beginning of #1.
** The ImagineSpot from #25 goes into [[Music/{{Friday}} "Friday In Hell"]] levels just before it ends.
* FunnyBackgroundEvent:
** In the opening, during the montage of Fourze using various Switches, Shield!Fourze can be seen flashing a peace sign and Flash!Fourze accidentally blinds himself. From #21 onwards, Fourze lampshades the nature of the Stealth switch by performing a ''ninja'' hand gesture before fading out, and plays Rock Scissors Paper against the Hand switch - but ''loses''. In the next update, when Fourze activates his [=GiantFoot=] switch, he accidentally crushes himself.
** #1 has a funny ''foreground'' event the first time we see the classroom, with one student invoking some kind of summon ritual amidst the classroom chatter.
** #5. Sonoda and Ohsugi are discussing something while another teacher in the back is getting punked by a student, then retaliates with a [[WrestlerInAllOfUs headlock.]]
** #9. While Kengo is pointing out the silliness of Yuki and Gentaro racing to school every morning, there's a couple of the "inmate" students doing an even more strenuous exercise behind him.
*** Not just any exercises, but full on hopping squats and fireman carries. [[UnusuallyUninterestingSight The other students don't seem to bat an eye]].
** #10. More of an easter egg, but when the witches tie up the entire Kamen Rider Club, JK's hands are inexplicably tied into his JK finger salute.
** #16: While the Kamen Rider Club (minus Gentaro) is admiring their Christmas Cake, the three Foodroids are fighting over party hats.
* GoldenSnitch: Played straight in #37. The Bonus Question in the astronaut entry exam is enough to get Gentaro and Yuki to the next phase, even though ''[[EpicFail Gentaro couldn't answer a single one of the others.]]''
* GratuitousEnglish: Oh, where to begin?...
** It doesn't help that Gentaro seems to have a hard time understanding the English words everyone is throwing left and right. (The best one is in the first episode, believing Miu calling Gentaro "Trash amongst Trash" meant "Man amongst Men"). He knows how to say "Thank you" in English, at least.
*** Against Unicorn in #6. Heck, Gentaro once said to Kengo that "[he] must think [he's] so smart by using katakana" in #2!
** The detention teacher in #7 uses a few English words, but especially "bad boy" for Gentaro, which he always pronounces in a gleeful yet creepy way.
** Episode 15 has Yuki, along with the Glee Club, sing a nice rendition of ''Jingle Bells''.
*** In the same episode when JK goes to throw Fourze the Pen switch, he says "This is a Pen" (which may be a common phrase in English-as-a-second-language class if [[http://www.youtube.com/watch?v=ykf4D4-aKHg&t=0m50s this clip]] is any indication).
** And in #31, we have the PE Teacher acting as the English teacher [[spoiler: due to Aries casting her in that role.]]
* HalloweenEpisode: #9-10
* HamToHamCombat: Gentaro and ''[[Series/KamenRiderDouble Shotaro]]'' in ''Movie Wars [=MegaMax=]''.
* HeelFaceTurn: [[spoiler:Libra in #45 seemingly, but he's really TheMole.]]
* HeroicSacrifice: [[spoiler: Virgo (aka Emoto) dies protecting the Kamen Rider Club.]]
* HighSchoolDance: The Prom which is the focus on #25-26.
* HijackedByGanon: [[spoiler:[[Series/KamenRiderDouble Foundation X]] are the backers behind Zodiarts.]]
* IdiosyncraticEpisodeNaming: Each episode has a title written in four kanji which when taken together forms a sentence.
* InstitutionalApparel: Parodied. All students get school tracksuits, as seen in #8, but they're bright orange, making the "muscle" clique, who wears them the most, look like inmates.
* IWantYouToMeetAnOldFriendOfMine: Ohsugi's actor is joined by his partner from comedy team "Angles" in TheMovie.
* KarmaHoudini: Misa Toriizaki and the Ugly Ducklings get away with [[spoiler: forcing Norio Eguchi to become Cygnus Zodiarts]] and all we here is that it's been disbanded from Kengo.
* LighterAndSofter: When Fourze was in production they decided to make it a show that would be "uplifting" after the 2011 Earthquake and Tsunami, explaining the very soft tone and focus on friendship.
* LimitedWardrobe: Justified by the school environment (and gets rather egregious with Shun and Miu), though it should be mentioned that Gentaro wears his uniform to "JK Night" in #5 when everyone else has dressed to the nines (well, moreso than usual in [=JK's=] case.)
** Gentaro subverts this: while he still has his jacket and pants, he'll sometime be depicted in different shirts. Also, starting with #15, the school is shown wearing winter coats, and Gentaro now sports a new jacket.
* MagicallyBindingContract: When Gentaro loses his bet with the Taurus Zodiarts, he finds himself unable to disobey Taurus' rules, and his signature on the contract for the bet glows. It ''seems'' that a bet and Taurus' victory are a condition for it to work that way, but it could be that it's just the only way he can get people to sign. The viewer doesn't get to see the fine print.
** Not the first time it works this way, either: While it's not his whole shtick, at one point Cancer is stealing souls in the form of rings that he can cut with his claws, rendering the person comatose. He says he'll give them back if one of the characters makes him laugh. [[spoiler: When tricked into a loophole by his ExactWords]], instead of saying "that doesn't count" or "ILied," he can only go OhCrap as everyone - even those whose soul rings had been cut - is restored.
* MeaningfulEcho: In the final episode, Gentaro is [[CallBack going to throw Kengo's letter over the railing of the same bridge Kengo threw his kohai's love lever over in the very first episode.]] Then, [[spoiler: Kengo himself stops him, repeating back the same words Gentaro threw at him: that he had better read that letter and should consider the feelings of the writer.]]
* MeaningfulName: The name of Amanogawa High can be translated as "Milky Way".
* MilestoneCelebration: Fourze is romanized as "40", in connection with Kamen Rider's 40th anniversary.
** According to TheOtherWiki, the series is also in commemoration of the 50th anniversary of Yuri Gagarin's feat as the first human in space.
* TheMole: [[spoiler:Libra in #45-46.]]
* MultiformBalance: Collectively called "States".
** JackOfAllStats: Base
** GlassCannon: Elek
** StoneWall: Fire
** MightyGlacier: Magnet
** SuperMode: Cosmic
** FragileSpeedster: Rocket
** LightningBruiser: Rocket Drill
** SerialEscalation: Meteor (Nadeshiko) Fusion
* MundaneMadeAwesome: #40. How Ryusei as Meteor [[spoiler:wins the golf match against Sugiura as Taurus - Meteor Storm Form! Using the Storm Shaft as a golf club and winding up with cosmic energy for a METEOR STORM DRIVE!!]]
** Also, in the last episode when Gentaro goes to face [[spoiler:Sagittarius Nova]], there's just something incredibly awesome about the way he finishes his soup.
* MythologyGag: Gentaro winding up with the belt due to Kengo's condition brings to mind HiroshiFujioka's well-documented GameBreakingInjury, which led to the creation of the second Kamen Rider. [[Series/KamenRiderOOO Not the only time it's been done, either...]]
** Speaking of which, the very first [=MotW=] has three circles in a row on its belt buckle. The TronLines are negligible though, since apparently all Zodiarts will depict their constellations this way.
*** The first [=MotW=] is Orion. Orion's Belt ([[CoincidenceMagnet made of three stars in a slant]]) is the most iconic aspect of the constellation.
*** The Pyxis Zodiarts has a disturbing resemblance to [[Series/KamenRiderOOO Uva]].
*** #21. While Fourze gets WolverineClaws apparently inspired from witnessing Series/KamenRiderOOO in action from his EarlyBirdCameo, Ohsugi gets a HomemadeSweaterFromHell that ''just happens to have'' a red right-arm sleeve.
*** And Fourze's arms-and-legs-weapons gimmick is similar to Birth.
** JK even has his own finger-salute representing the letters J and K. [[Film/KamenRiderJ We've seen the J before.]]
** Kengo carries out his own investigations to unmask the Chameleon Zodiarts, and winds up replicating ''Series/KamenRiderDouble'''s finger-point gesture.
*** Speaking of which, #7 has JK running from the MonsterOfTheWeek while yelling "[[GoLookAtTheDistraction look, UFO! Abominable snowman!]]", calling back to Detective Jinno's focus episode.
*** In #17, Sonoda does [[Series/KamenRiderDouble Wakana Sonozaki's]] CharacterTic, complete with a close-up on her lips.
*** The [[http://i.imgur.com/5SCBS.jpg NS MagPhone]] UpgradeArtifact is designed to go into two Astro Switch ports simultaneously for [[http://i.imgur.com/RFALl.jpg Magnet States]], much like the Xtreme Memory.
** The gigantic explosions caused by powerful Zodiarts that can cause major damage call back to ''Series/KamenRiderKuuga''. The police dealing with the Hound Zodiarts - ineffectively - may also be a call back.
** The Beat switch delivers [[Series/KamenRiderHibiki a sound attack that even sounds like a drum.]]
*** The symbol for Haruka's gym in #21 has some similarities to the Hibiki logo.
*** Cosmic States' transformation involves Astro Switches combining into Fourze (with the Foodroid Switches ejecting from them) in a sequence evoking that of Armed Hibiki's transformation.
** A girl in #6 has [[Series/KamenRiderDenO New Den-O]]'s henshin sound as a ringtone.
** Fire States has [[Film/KamenRiderTheNext the ability to suck in all surrounding flames to empower itself.]]
** Gentaro does a point-blank fire shot in Fire States against the Perseus Zodiarts in #15, much like how [[Series/KamenRiderBlade Kamen Rider Garren]] and Series/KamenRiderDouble [[color:red:Heat]][[color:blue:Trigger]] form used such an attack. Interestingly, Meteor has a similar move in #18 via the "Mars" function on his [[PowerFist Meteor Galaxy]].
** Kamen Rider Meteor's support is named Tachibana in honor or Tobei Tachibana, who was an ally and mechanic to the first seven Showa Riders (from No. 1 to Stronger).
** The storage room Kengo's locker is in also contains [[Series/KamenRiderKabuto Daisuke's guitar case]].
** The Lynx Zodiarts is a monster cat that can do bursts of superspeed. His look, the way he moves, ''everything'' makes him basically a repaint of the Smilodon Dopant.
** And Leo has WolverineClaws and wind attacks, basically making him Kazari. He also carries the Switches of defeated Horoscopes, just as Kazari once carried the Core Medals of some of the other Greeed.
** Not only is the Cygnus Zodiarts similar to both [[Series/KamenRiderDenO Seig]] and [[Series/KamenRiderKiva Ixa]], but the Cygnus cult meeting involves a SwanLake ballet ''and'' an exercise ritual worthy of IXA-Cise. Towards the end of #23, Cygnus performs a kick that is very similar to the ''[[Series/KamenRiderDouble Fang Streiser.]]''
*** And the Giantfoot Module mimics the Kiva Dogga Form's FinishingMove in terms of concept.
** At the end of #24, when discussing Eguchi's hero-worship, Yuki does [[Series/KamenRiderOOO Eiji's henshin pose]].
*** From #33 onwards, Yuki gains a Hayabusa puppet that has apparently inherited the CreepyDoll FX from [[FanNickname Maki Jr]].
*** The Kamen Rider Girls make their second in-universe appearance in #26, after ''Shogun and the 21 Core Medals''.
** The Musca Zodiarts in #29 [[Series/KamenRiderKuuga develops new powers when his arms and legs turn green.]]
** The Cosmic State transformation [[Series/KamenRiderBlade involves all 40 Astro Switches and a]] {{BFS}}. And the Foodroids join in as well. [[Series/KamenRiderHibiki Where have we seen that before?]]
** Fourze's easy access to his Astro Switches when in Cosmic State involve pressing corresponding buttons somewhere on his person. It's like [[Series/KamenRiderDecade Complete Form]] all over again.
** JK's rock star ImagineSpot involves wearing his hair in one-sided cornrows - a style [[Series/KamenRiderOOO Ankh]] was known for. Adding a meta twist, [[http://www.jefusion.com/2011/12/ryosuke-miura-holds-first-live-solo.html Ankh's actor Ryosuke Miura actually had his own rock concert.]]
** Rocket State's FinishingMove, Tailspin Crusher, is an {{Homage}} to two of Rider 1's moves, the [[EverythingIsBetterWithSpinning Tailspin Shoot]] and [[UseYourHead Head Crusher]].
** #39-40 - the brainwashed Mooks of the AbsurdlyPowerfulStudentCouncil turn pale and gain {{Guyliner}}, which goes all the way back to ''Series/KamenRiderAmazon''.
*** Not as far back, but WellIntentionedExtremist Sugiura turning into Taurus mirrors ''Series/KamenRiderDecade'', when [[spoiler:Series/KamenRiderHibiki similarly lost sight of true justice, and]] also turned into a bull-like creature.
** #43 - Creepy dollon Yuki's front porch? Checked. Yuki's father? Checked. Yuki's parents love for cosplay and frequently change thier house's decor to satisfy different cultural themes? Checked. [[Series/KamenRiderOOO All of these seems familliar...]]
** [[spoiler:In final episode, Kengo is back as usual, thanks to Gamou which uses Aquarius Switch to use his all Cosmic Energy to repair the Core Switch, [[Series/KamenRiderDouble like Wakana who revived Philip with her own Gaia Impact]]]].
** Cosmic States' Rider Kick is surprisingly devoid of frills and even uses the right leg to deliver the kick instead of Fourze's usual left, making it designed to evoke the original Kamen Rider's kick. The attack is even simply named "Rider Kick" instead of Gentaro's usual elaborate names.
** Each of the names of the Kamen Rider Club's main members is a reference or SignificantAnagram of the name of one of the first six Showa Riders. This is referenced in ''Movie Wars Megamax'' where each member of the club cosplays as the rider their name is an anagram of, with Gentarou taking the spot of [[Series/KamenRiderStronger Kamen Rider Stronger]].
** The theme behind the Meteor Fusion switch can be considered a CallBack of sorts to [[Series/KamenRiderDouble Kamen Rider W]].
** In TheMovie, [[spoiler:the ''Kyodain'' characters' roles are reversed; in the original show the Kyodain were the heroes, while Black Knight and Gaburin Queen (Inga Blink's name is an anagram of hers) were villains. Of course, at first it looks like Inga and Black Knight are bad guys too...]]
* NoSell: Done by Tatsugami in Episode 47 when Ryusei throws a one-inch punch at him when he invades the Rabbit Hutch.
* NonSerialMovie: Averted in terms of ''Movie Wars Megamax'', where everything fits perfectly and is referenced again, unlike last year's teamup, ''Movie Wars Core''. Rocket State even sees use in the regular series. The Foundation X storyline begun in Double also returns in this film (though isn't fully resolved; Gamou is seen to work with them later in the series.) Leo and Virgo also debut in it. This one didn't just ''happen,'' it's ''required reading.''
** Interestingly, OOO and Fourze seem to know each other from the events of ''The Shogun and the 21 Core Medals,'' which at the time ''looked'' really non-serial (mainly, the Greeed were never seen to get back [[spoiler: the Cores they let OOO borrow to take out Gara]], and [[spoiler: Burakawani Combo]] doesn't seem to exist outside that film.) Best to [[MST3KMantra not give yourself a headache over that one]].
*** Then we see [[spoiler:Burakawani]] used again in Ultimatum... but it's ambiguous whether it's the real deal.
** Also, for the first time ever, averted by Fourze's ''Hyper Battle Video''! The Clear Drill Switch, what was believed to be the traditional one-off gimmick, appears in both ''Let's Go To Space!!'' and ''Movie War Ultimatum'' as part of Meteor Fusion States!
* NumerologicalMotif: "40" of course.
** People are starting to notice a pattern emerging: [[Series/KamenRiderDecade Decade]] ('''1'''0, who can use one card at a time), [[Series/KamenRiderDouble Double]] ('''2''', two minds sharing half a body), [[Series/KamenRiderOOO OOO]] ('''3''', powers in three areas), and now Fourze ('''4'''0, weapons and powers on four limbs). We don't know what they'll do next year, as [[Series/KamenRiderFaiz five is already taken]].
*** They're doing 5 anyway--Kamen Rider Wizard's powers seem to be based on rings, which are placed on the 5 digits of one hand. They continued with 6--Kamen Rider Gaim uses locks, which, when unlocked, resemble the number 6, as well as the fact that "lock" pronounced in a Japanese style gives you "roku", which means six.
* OffTheShelfFX: #37. The 'project' built by a rival team for the astronaut test is obviously the [[http://www.wowwee.com/en/products/toys/robots/robotics/robosapiens/robosapien RoboSapien.]]
* PantyShot: From [[spoiler:Dark Yuki]] as she does her cartwheels. [[VisualPun They're black, too.]]
* ThePowerOfFriendship: This is generally how Gentaro is able to activate his State.
** To activate Elek States in #6, he learns how to accept the drawback it has just like he accepts JK for who he was.
** To activate Fire State in #10, he accepts Tomoko for who she is which lets him absorb fire.
** To activate Magnet State in #20, he reinforces his bond with Kengo by saying that no one could replace him.
** And to activate Cosmic State in #32, he uses the bonds of all the members of the Kamen Rider Club. [[spoiler: It should also be noted that those bonds must stay together if Gentaro wants to use this state.]]
* PrecisionF-Strike: In Episode 12, when Kengo realizes that [[spoiler: he might be stuck on the moon for good,]] he says "This is bullshit!" Notable because it's [[TheStoic Kengo saying this.]]
* ProductPlacement: Pretty subtle, actually. The Foodroids (hamburger, fries, nuggets, etc...) may seem like an odd choice, but considering that one of the show's sponsors is ''Mc Donalds'', it makes a lot of sense.
* RatedMForManly: Football, hot girls, and [[HotBlooded Hot Blood]] in the first episode ALONE. It's already looking like Fourze will be the most manly ''Franchise/KamenRider'' ever made.
* RecycledInSpace: Motif-wise, literally.
* RedemptionEqualsDeath: [[spoiler: Emoto/Tachibana/Virgo in #42.]]
* RememberTheNewGuy: Apparently Gentaro already know Yuki's parents from before their debut in #43. Justified as he ''has'' known Yuki ''since childhood'', though.
* RousseauWasRight: Gentarou makes friends with everyone. ''Everyone''. There is no one who doesn't turn out to still have some spark of goodness in them, even [[spoiler: The Chairman/Saggitarius Zodiart]].
* RuleOfThree: Shown all over the place. Miu and Ritsuko lead a posse of three, Power Dizer went through three users aside from Kengo (Miu, Shun and JK) and has three modes, there are three female members of the Kamen Rider Club, etc.
** The Kamen Rider club starts out with Gentaro, Kengo and Yuki, who are not just TwoGuysAndAGirl, but [[FreudianTrio fall under Id, Superego and Ego respectively.]]
* RunningGag:
** The bunch of thugs hanging out at the back of the school who attack Gentaro on sight, and fail, ''twice''.
** Gentaro's constant misunderstanding of [[GratuitousEnglish English words]] (i.e. trash, knight, [[TooDumbToLive danger]]).
** And there's also Kengo's constant reminder of the gathering that it's not a club and telling Miu she's not the president of said club...Well, until #12 that is.
** Gentaro breaking something or hitting someone with his henshin pose.
** Gentaro asking why certain leg switches (Brush, Hand, etc.) are [[LampshadeHanging on the leg in the first place.]]
** The debut of a Foodroid also shows the food they were based on. The only exceptions are Burgermeal and Softonya.
** Poor JK frequently gets knocked over, either getting caught in the crossfire of a fight between club members, hit by someone passing at high speeds, or actually receiving a blow from a Zodiarts. He also occasionally manages to [[FaceFault fall over on his own.]] These usually take the form of a FunnyBackgroundEvent, and JK almost always ignored and left on his own, though Shun has been known to casually pick him back up by his jacket.
* SameStoryDifferentNames: The episodes for #41-42 are eerily similar to ''Series/KamenRiderDouble'''s "The O Chain" arc, [[spoiler:with the EvilMentor telling the rider to fight with negative emotions instead of positive ones as they are unable to fight properly due to some monster-related mess]].
* SchoolClubFront: The Kamen Rider Club at school, which is actually made up of the students helping the Kamen Riders and has a portal to a base on the moon. It is unclear just how much the club claims to be a legitimate school club.
* ShipperOnDeck: Most members of the Kamen Rider Club seem to be shipping [[spoiler: Tomoko and Ryuusei.]] Particularly obvious at the end of #44 when Yuuki hands out homemade tickets [[spoiler: to space]] and gives those two a couple's ticket.
** And in the finale [[spoiler: JK is forming a heart over Tomoko once Ryusei ask her to come visit some time. Her BattleAura became ''pink''.]]
* ShoutOut
** Gentaro's Henshin Pose is similar to Series/SpaceSheriffGavan's Henshin Pose.
** The Astro Switches are named after Japanese astronaut [[http://twitter.com/#!/astro_soichi Soichi Noguchi's Twitter profile]].
** Yuki pointing out the different "student groups" to Gentaro in #1 may remind some of a scene from ''Film/MeanGirls''.
** Fourze's limbs are each marked with a different symbol: [[PlayStation Circle (right arm), X/"Cross" (right leg), Triangle (left leg), Square (left arm)]].
** Tachibana's CoolMask looks just like the ones worn by Music/DaftPunk.
** #7-8 has a good number of these. The Hound Zodiarts is shown dangling a bundle of chains resembling the poachers' lure from ''MightyJoeYoung'', and Satake claims to be "[[LiloAndStitch the one they call in when things go wrong]]".
*** The Sunday detention class itself stands out as a straight-up {{Homage}} of ''Film/TheBreakfastClub''. A jock, a delinquent, a creepy girl, a cute girl, and a brain are all sent to weekend detention with a Jerk teacher who picks on the delinquent from the get-go, and a key moment is when the Jock reveals through blubbering tears that he's terrified of not living up to his father's expectations. Even the [[WritingLines writing 1000 words punishment]] mirrors the 1000-word essay[[note]]The 1000 words is supposed to be writing the kanji for 'Reflection' 1000 times[[/note]]. Considering the show's heavy use of english language and American high school tropes, we can probably expect to see more homages like this in the future.
** #9-10 feature [[TheCraft a trio of goth girls]] [[Series/{{Charmed}} dabbling in witchcraft]].
** The OP includes a shot of Fourze making a FullMoonSilhouette while on a bike. [[Film/ETTheExtraTerrestrial Sound familiar?]]
** #12 has [[Film/{{Speed}} Miu trying to drive a bus that's speeding out of control towards an unfinished bridge.]]
** #14 has Shun taking [[Film/TransformersDarkOfTheMoon the Power Dizer leaping off a wall to catch JK and Gentaro with a backflip. And it's even black and yellow!]]
** #15 has some ''Manga/FistOfTheNorthStar''-esque SceneryGorn with an entire building whacked into an angle. And the Perseus Zodiarts could be considered as one to the new ''ClashOfTheTitans''.
** #16 has some as well. The sound in the Rabbit Hatch that let Kengo know Gentaro was in danger is also the sound of the low HP bar from the Kingdom Hearts series. Not to mention Gentaro getting [[Series/SamuraiSentaiShinkenger a brush that actually writes things in the air.]]
*** [[Literature/PercyJacksonAndTheOlympians The Pen Switch was introduced in the Perseus Zodiarts story arc.]]
** #20 has Meteor delivering RapidFireFisticuffs IpMan-style. Rather appropriate considering [[BruceLee where all his other moves came from.]]
** The Cygnus Zodiarts, who has a swan motif, [[spoiler: is a crazy guy with a split personality]]. [[Film/BlackSwan Now where have we seen this before]]?
*** On top of that, we have Toriizaki, a BitchInSheepsClothing ballerina who [[EvilCostumeSwitch dons a black tutu]] in her last appearance.
*** It doesn't help that Swan Lake was a heavy motif in those episodes.
** Yuki says that the Ugly Ducklings have had their fill of heroes. This isn't too remarkable by itself, but she does so while mimicking the Henshin pose of ''Series/KamenRiderOOO''!
** While the myth behind the Coma Berenices constellation mentions Queen Berenice sacrificing her hair, the Coma Zodiarts' ability to [[MookMaker turn it into more monsters]] comes from a different mythical character. [[Literature/JourneyToTheWest Sun Wukong,]] to be precise.
** #37. As if reinforcing the [[ShonenDemographic Shonen]] IdiotHero thing, Gentaro makes it through the test by sheer luck without being able to answer a single question, much like Manga/{{Naruto}} once did.
** #39. Emoto draws a comparison between Gamou, Utahoshi Rokuro and himself with the sun, earth and oceans, and the moon. This was also done in ''BBSenshiSangokuden'' with Sousou, Ryubi and Sonken respectively. [[spoiler:Which turns downright meta as Emoto turned on Rokuro, thanks in part to Gamou's manipulations, which is precisely what happened with Sonken, Ryuubi and Sousou's precursors Sun Quan, Liu Bei and Cao Cao in ''RomanceofTheThreeKingdoms''.]]
** #42. The Meteor Storm Anime/{{Beyblade}} left spinning continuously [[spoiler:after Ryusei himself is apparently sent to the Dark Nebula]] just screams ''Film/{{Inception}}''. [[spoiler:Incidentally, Emoto's role is revealed to be an agenda within an agenda.]]
** #44: When Gemini goes Supernova, both of them claim [[Series/KamenRiderDouble that they're going to "clinch it."]] Bonus points for Gemini having the same color scheme as [=FangJoker=], just with MonsterClown elements thrown in.
** #45. [[spoiler: When Leo introduced himself to the KRC: I'm Kou Tatsugami, remember that! The exact same way Decade introduces himself! Not to mention that Leo's been MegaManning the other Horoscopes switches.]]
** #46 and #47. [[spoiler: Sagittarius's Supernova ability essentially allows him to [[Series/KamenRiderKabuto Cast Off]].]]
** #48: [[spoiler: Fourze literally does a "Rider Kick!"]]
** In the Astro Switch Report DVD, when the Claw Switch is explained on screen, Gentaro cries out "[[Series/KamenRiderOOO SEIYA!]]"
** Look carefully at the Tachibana helmet - it's actually based off Series/SpaceSheriffGavan.
* SignatureStyle: Yes, KoichiSakamoto has a hand in this show, and just to hammer it home we have Fourze jumping off a flying bike to kick the enemy in #2. Other elements of Sakamoto's style are present such as the wire-fu (in mild doses when compared to ''PowerRangers'') and filming at an angle. And in episode #32 and #48, the [[FanNickname Kalishplosions]] even get carried over.
* [[TheWorldisJustAwesome Space is Just Awesome]]: Tends to happen with any person entering the Rabbit Hutch and realising where it really is for the first time.
** Also both Gentaro [[spoiler: and Kengo]] see the Earth from space and see that it's very beautiful.
* SpaceIsNoisy
* SportsPreemption: Happened for both the US Open (a pre-emption which happens every year), and the London 2012 OlympicGames, despite Fourze's 8am timeslot being '''midnight''' in England, so there's no live coverage then. As a result, the series length was curtailed slightly.
* StealthPun: In TheMovie, when the three Dizers team up, Shun calls the original Power Dizer King Dizer, Miu calls hers Queen Dizer, and JK calls his JK Dizer. It's subtle, but you can faintly detect how the names of their Dizers sound like the three highest suites in card games like Poker and Blackjack.
* TalentContest: Episode 3 features a contest for School Queen, in which the candidates showcase their talents and deliver a speech as to why one should vote for them.
* ThereIsNoKillLikeOverkill: In #42 Gentaro used [[SelectiveMagnetism Magnet]] [[WaveMotionGun States]] + [[MacrossMissileMassacre Launcher]] + [[GatlingGood Gat]][[MoreDakka ling]] against Virgo Zodiarts. [[spoiler:[[OhCrap It didn't work]]]].
** Then there's [[WolverineClaws Claw]]+[[ChainsawGood Chainsaw]]+[[SpikesOfVillainy Spike]]+Scissors against Gemini, a rare melee-range version.
* ThousandOrigamiCranes: In #37, Gentaro's group--while in a space isolation test--is making ten thousand paper cranes to pass the time. Gentaro actually tries to get Ryusei to calm down by saying "think of Jiro when you do it!"
* TimeSkip: The Fourze portion of ''Movie War Ultimatum'' takes place five years after the end of the series and shows what become of the Kamen Rider Club: [[spoiler:Kengo's following in his father's footsteps as a scientist, Yuki achieved her dream of becoming an astronaut, Shun is a professional football player, Miu is a fashion model, JK is a style reporter for a magazine, Tomoko's become a novelist, and Ryusei works for Interpol alongside Inga Blink. And Gentaro? He's a teacher at Amanogawa, as well as the sponsor for the Kamen Rider Club (which only has a single member).]]
* TransformationIsAFreeAction: Invoked and enforced. The Fourze Driver countdown is only ever used to insert sight gags, and has ''never been interrupted.''
* TrashTheSet: A destructive battle takes place in [[spoiler: the Rabbit Hatch in the penultimate episode.]] It goes on for some time with nobody seeming to realize [[spoiler: that a hole getting punched in a wall would be ''very bad.'']] Then precisely that happens. However, it seems that some sections are closed off from some others, because [[spoiler: the base is used without spacesuits after the battle]].
* TwoTeacherSchool: Ohsugi and Sonoda are the only regular staff members to appear on the show. Two other teachers appear briefly for two episodes each.
** The finale reveals that there are at least six teachers.
* UnexplainedRecovery: [[spoiler:Kengo, thanks to [[RedemptionEqualsDeath Gamou using the Aquarius Zodiarts switch to restore the Core Switch in his final moments.]]]]
* UrbanLegends: The past Kamen Riders. In Episode 2, Tomoko has apparently been collecting information on them. [[spoiler:She's shown to have videos of [[Series/KamenRider Rider 1]], [[Series/KamenRiderSuper1 Super-1]], [[Series/KamenRiderBlackRX Black RX]], and [[Series/KamenRiderKuuga Kuuga]] fighting their respective monsters, and a news article on the destruction of Futo Tower from the ''[[Series/KamenRiderDouble Double]]'' movie. Later, in ''Megamax'', Gentaro expresses shock and delight that the 'Legendary Seven Riders' even exist.]]
* VileVillainSaccharineShow: We have a LargeHam protagonist who promises to befriend everyone in his school. Then we have the monsters like Makise, Kijima and Yamada coming around that makes this series turn over its head and become pretty dark.
* VisualPun: One of the first things Gen does as Fourze is to literally [[RocketPunch punch a monster with a rocket]].
* WhamEpisode: #11: Kengo's now seemingly stuck on the moon because the Pyxis Zodiarts destroyed the locker that acts as its teleporter.
** #13. Aside from bringing back an old Zodiarts Switcher, [[spoiler: the identity of the Scorpion Zodiarts is finally revealed]].
** #14. [[spoiler: The Principal is revealed to also being a Zodiarts.]]
** #18. [[spoiler: Sonoda is no more as she's been cast to the Dark Nebula and the Virgo Zodiarts has replaced her.]]
** #19. [[spoiler: The Dragon Zodiarts is stronger than both Fourze ''and'' Meteor, Kengo has seemingly quit the KRC and has ended his friendship with Gentaro and the Magnet States have flown into the sky.]]
** #22. [[spoiler: Think that Gentaro defeated the Pegasus Zodiarts? You'd be wrong. Introducing: the Cancer Zodiarts!]]
** #25. [[spoiler: Miu and Shun are graduating, Yuki's ClubPresident, JK is now the pilot of Power Dizer and Miu states to Shun that she wanted to go to prom with Gentaro while Fourze and JK are getting their asses kicked by ''three'' Zodiarts.]]
** #27: [[spoiler: Ryuusei's timing for getting the IdiotBall had to be when he was fighting Cancer, thus revealing his true identity. And when Ryuusei needs to talk to Tachibana, Tachibana will not let him transform now that someone knows who he is. At the same time, Cancer has gone into Nova mode due to him absorbing the souls of other students!]]
** #29: Remember the time where Ohsugi took the locker to Rabbit Hatch around 18 episodes back? [[spoiler: He now knows about Rabbit Hatch and took the only switch capable of stopping Musca!]]
** #30: At the end of the episode, [[spoiler: Aries Zodiarts has appeared]].
** #31: [[spoiler: Ryuusei kills Gentaro with the one-inch punch and for doing so Tachibana revokes his powers as Meteor, which leads to the Kamen Rider Club finding his identity out.]]
** #33: [[spoiler: In Movie Wars MEGAMAX, we see that Foundation X was slightly involved in the Zodiarts Switches. Now we know that they ''really are''!]]
** #34: [[spoiler: Hayami has activated Supernova Form and notes that the Chairman is the Sagittarius Zodiarts.]]
** #40: Guess who's Virgo Zodiarts? [[spoiler: It's Emoto! And she just sent Tomoko into the '''''Dark Nebula'''''! And he's also the one who left Rokuro for dead on the moon in the first episode!]]
** #41: Guess who's Tachibana, Meteor's benefactor? [[spoiler: Virgo! And Meteor gets Dark Nebula'd too.]]
** #42: [[spoiler:Sagittarius makes his debut by severely wounding Emoto. After a hurried explanation on Emoto on the backstory to Kengo, Leo and Libra come in and '''finish off Virgo! That's right: ''THEY KILLED OFF VIRGO!''''']]
** #43: Yuuki's questionable antics revealed to be the [[spoiler: actions of her doubleganger?]] Not a surprise. Her not being a willing [[spoiler: Zodiarts?]] Also not a surprise. But then the stakes get raised when it's revealed that [[spoiler: Yuuki's babbling about the voices from space? That isn't her being loony about space, it's something that actually happened and Gamou has heard those voices as well. He's going to take her Dark Side with him to the stars.]] Oh, and [[spoiler: Yuuki is going to be replaced by her Dark Side in twelve hours, and when time's up, '''she'll vanish completely.''']]
** It took up to #45 but [[spoiler: The KRC '''''finally''''' figure out who Libra, Leo '''AND the BigBad''' are!]]
*** And another bit? [[spoiler: Ran didn't become Pisces by force like Yuki. No, she ''chose to do it'' to save Hayami!]]
*** And [[spoiler: the thing Aquarius Zodiarts did in Ep. 37? It didn't help Kengo at all, she just delayed the next time it happened...]]
*** [[spoiler:Turns out, there '''IS''' a Dark Nebula. And the Day of Awakening Gamou's been talking about? While he goes to somewhere nice (probably), '''''HIS ACTIONS WILL CAUSE THE DARK NEBULA TO SUCK UP AND DESTROY JAPAN!!!!!''''']]
** #46: Oh, boy. What do we have here? [[spoiler: First off, Ran's Switch turns red, then it turns out Hayami was really TheMole. Then, Ran loses her switch and Gamou invokes the Day of Awakening. However, Kengo emits a white light that ''stops'' the ritual and then it's revealed that he's the Core Switch!]]
** #47: [[spoiler: Gamou activates his Nova form, the Rabbit Hutch is destroyed thanks to Leo Zodiarts, Kengo reveals that he's [[CallBack actually a construct made of Cosmic Energy]] in order to protect the Core Switch for when the Presenter calls him back, oh, and '''''[[KilledOffForReal KENGO IS DEAD]]!!!!!''''']]
* WhamLine: Courtesy of Kengo in Ep. 47: [[spoiler: "I'm the Core Child, and I was born from the Core Switch. I'm going to return to the homeworld of the Presenters."]]
** Anything else Kengo says in that episode qualifies. ''This'' line is the most shocking:
--->'''Kengo:''': [[spoiler: ''(in a fake CreepyMonotone)'' When I awaken as the Core Child, I lost all human emotions."]]
* WhamShot: #40: Did you all think Gamou was the astronaut who killed Rokuro? [[spoiler: Surprise...it's ''Emoto!'']]
* WhatHappenedToTheMouse: [[spoiler: Everything's all hunky dory in the end, but we still have three people--Sonoda, Kijima and Sugiura--stuck in the M-Bus in a frozen state. Presumably, Gentaro can use Cosmic States' teleportation power to get them out, but we never see him do it, and also the problem of what happens next is never addressed--Sonoda and Sugira could be pretty easily rehabilitated, but the jury's still out on whether we ''want'' Kijima back (A sequel novel was later released, and confirmed that Gentaro did indeed use Cosmic States to rescue the people stuck on the M-Bus)]].
** [[spoiler: Yamada (Aries) is still stuck in his coma. And we never find out how Yayoi (Coma) and Nonamura (Lynx) are coping after Gentaro turned off their switches... until TheMovie anyhow.]]
* WhereAreTheyNowEpilogue
** [[spoiler: Ohsugi and Utsugi are still teaching at Amanogawa. Satake has apparently replaced Hayami as the principal.]]
** [[spoiler: Ryusei returns to Subaruboshi, and encourages Tomoko and JK to visit him. Tomoko is happy when she learns that he is not dating Mei Shirakawa.]]
** [[spoiler: Shun attempts to propose to Miu, but she is distracted when [[Series/KamenRiderWizard Haruto Souma]] passes by wearing one of his Wizard Rings.]]
** [[spoiler: Ran and Haru join the Kamen Rider Club full time. The revived KRC flies their flag outside the school, with a new goal to travel to space and befriend the Presenters.]]
* WorldOfHam: Judging from the fact that this is from the man who wrote ''Anime/TengenToppaGurrenLagann,'' this should not be surprising at all!
* ZettaiRyouiki: The girls have Grade B as a whole, except Tomoko, whose skirt is longer than the others'.