History Trivia / KamenRiderFourze

** Then there is Kamen Rider {{Playstation}}.

* HeyItsThatGuy: [[Series/TomicaHeroRescueFire Fire-5]] appears in the first two episodes [[spoiler: and #13-14]] as the Orion Zodiarts user.
** Tomoko was [[Series/OneLiterOfTears Aya's youngest sister]]!
** [[Series/KamenRiderRyuki Alternative Zero]] guest stars in episodes 7-8.
** Amane from ''Series/KamenRiderBlade'' appears as an Amanogawa student this time, after her stint as an art student in ''Series/KamenRiderDouble''.
** For that matter, Sakuya Tachibana/Kamen Rider Garren appears as the principal of AGHS starting from #13. The ''[[Film/KamenRiderXSuperSentaiSuperheroTaisen Super Hero Taisen]]'' net movies lampshade this in one short where it's suggested that Tachibana is a repressed personality of Hayami's, and Kengo tries to bring it out.
*** He also reprises his role as Garren in the net movies for ''Everyone's Space Time''.
** Abe was previously Mana's cousin Taichi in ''Series/KamenRiderAgito''.
** Nao Nagasawa ([[Series/NinpuuSentaiHurricaneger Nanami Nono/Hurricane Blue]] and [[Series/KamenRiderDouble Lily Shirogane]]) appears as Gentaro's new teacher in #21-22. Interestingly, one of the guys at the gym was Gozo[=/=]Metal Dopant.
** In #30, [[Series/SamuraiSentaiShinkenger Princess Shinken Red]] appears as a classmate at Ryusei's old school.
** Yayoi Tokuda was Rije in ''Series/BakuryuuSentaiAbaranger''.
** In ''Movie Wars [=MegaMax=]'', [[Series/MahouSentaiMagiranger Magi Mother]] is working with Foundation X!
** Yuki's dad is ''[[Series/KamenRiderOOO Doctor Maki.]]''
** Shun's dad appeared in ''Series/SamuraiSentaiShinkenger'', as ''Ryuunosuke's dad''. Guess fathering TheLancer is in his genes.
** In the summer movie, [[Series/ChikyuuSentaiFiveman Five Yellow]] appears as a Foundation X executive, making her the second past Sentai hero to appear as a member of Foundation X in ''Fourze'' alone.
** Norio Eguchi [[spoiler:(Cygnus Zodiarts)]] took losing [[Series/SamuraiSentaiShinkenger Kotoha]] ''really'' hard...
* HeyItsThatVoice: Creator/NobuyukiHiyama takes the role of Narrator [[spoiler: and Ryusei/Kamen Rider Meteor's support Tachibana]] and seems to be making [[Anime/GaoGaiGar Guy Shishioh]] the story teller.
** [[Creator/MayNakabayashi The female singer]] of the duo who sing ''Giant Step'' is [[Anime/MacrossFrontier Sheryl Nome]].
** Virgo Zodiarts is voiced by Creator/RieTanaka. Seems like [[Anime/MobileSuitGundamSEED Lacus Clyne]] is playing another pink character.
** Gemini is voiced by Creator/HiromiKonno, who previously exhibited a SplitPersonality as [[Manga/LuckyStar Kogami Akira.]]
* IKnewIt: [[spoiler: Sarina Sonoda]] is Scorpion Zodiarts.
** And [[spoiler: Ohsugi-sensei ends up becoming the Kamen Rider Club adviser]].
** [[spoiler: As well Virgo Zodiarts, where her true identity is Emoto]].
** [[spoiler: Some people had that attitude about Emoto's alter-ego Tachibana, too.]]
** [[spoiler: And now we know that Kengo is the owner of Core Switch. As well as have a status like [[Series/KamenRiderDouble Philip]] and [[Series/KamenRiderOOO Ankh]]]].

** In #30, [[Series/SamuraiSentaiShinkenger Princess Shinken Red]] appears as a classmate at Ryuusei's old school.

** One of the [[Creator/MayNakabayashi people]] singing Fourze's new battle theme is [[Anime/MacrossFrontier Sheryl Nome]].

** Norio Eguchi[[spoiler:(later revealed to be the vigilante Cygnus)]]'s first name means "man of law", just like his VERY well-known namesake, NorioWakamoto!

** Played straight for Anna Tsuchiya, who does the opening song for her kids based on much her son loved ''Series/KamenRiderOOO'' back when it aired.

* [[BackedByThePentagon Backed by JAXA]]: To the point that the [[http://www.jaxa.jp/about/centers/tksc/index_e.html Tsukuba Space Center]] is seen in the opening sequence.

** One of the [[MayNakabayashi people]] singing Fourze's new battle theme is [[Anime/MacrossFrontier Sheryl Nome]].

** Gemini is voiced by HiromiKonno, who previously exhibited a SplitPersonality as [[Manga/LuckyStar Kogami Akira.]]

** Tomoko was [[OneLiterOfTears Aya's youngest sister]]!

* HeyItsThatGuy: [[TomicaHeroRescueFire Fire-5]] appears in the first two episodes [[spoiler: and #13-14]] as the Orion Zodiarts user.

** In the net movies, Gentaro actually meets up with Garren and he and Tomoko see a video of Garren...who looks just like their principal. Garren insists that his name is Tachibana Sakuya, not Kouhei Hayami...which Gentaro thinks he's talking about Meteor's benefactor Tachibana, and his mind starts to overload from confusion.

* EnforcedMethodActing: The scene at the start of the final episode, where [[spoiler:Yuki reads Kengo's farewell letter after he's been killed by Gamou]], was the last scene filmed; thus, the tears being shed were real. Made worse was the fact that [[spoiler:Ryuki Takahashi, Kengo's actor]], couldn't be on the set for obvious reasons. In an exit interview, Fumika Shimizu, Yuki's actress, said she actually considered messing up her lines on purpose just so it wouldn't have to end.

* WhatCouldHaveBeen: Originally, Fourze was to have a much stronger anniversary aspect that what we were giving. The original plan was to have past Riders appear and team up with Fourze. Sadly, this idea was scrapped because the producers thought it was too soon to have past Riders cameo after Decade.

* PlayingAgainstType: [[spoiler:NobuyukiHiyama]] as the {{Chessmaster}} and ManBehindTheMan Tachibana [[spoiler:who even has a YouHaveFailedMe moment in #27.]]

** And, of course, [[Anime/TengenToppaGurrenLagann Kamina]] Rider, since Gentaro is considered by some an {{Expy}} of the famous {{Badass}}.

* HeyItsThatVoice: NobuyukiHiyama takes the role of Narrator [[spoiler: and Ryusei/Kamen Rider Meteor's support Tachibana]] and seems to be making [[Anime/GaoGaiGar Guy Shishioh]] the story teller.

** Virgo Zodiarts is voiced by RieTanaka. Seems like [[Anime/MobileSuitGundamSEED Lacus Clyne]] is playing another pink character.

** Nao Nagasawa ([[NinpuuSentaiHurricaneger Nanami Nono/Hurricane Blue]] and [[Series/KamenRiderDouble Lily Shirogane]]) appears as Gentaro's new teacher in #21-22. Interestingly, one of the guys at the gym was Gozo[=/=]Metal Dopant.
** In #30, [[SamuraiSentaiShinkenger Princess Shinken Red]] appears as a classmate at Ryuusei's old school.
** Yayoi Tokuda was Rije in ''BakuryuuSentaiAbaranger''.
** In ''Movie Wars [=MegaMax=]'', [[MahouSentaiMagiranger Magi Mother]] is working with Foundation X!

** Shun's dad appeared in ''SamuraiSentaiShinkenger'', as ''Ryuunosuke's dad''. Guess fathering TheLancer is in his genes.
** In the summer movie, [[ChikyuuSentaiFiveman Five Yellow]] appears as a Foundation X executive, making her the second past Sentai hero to appear as a member of Foundation X in ''Fourze'' alone.
** Norio Eguchi [[spoiler:(Cygnus Zodiarts)]] took losing [[SamuraiSentaiShinkenger Kotoha]] ''really'' hard...

** Miu Kazashiro shares a name with [[{{Engine Sentai Go-onger}} Go-on Silver]].

** [[KamenRiderRyuki Alternative Zero]] guest stars in episodes 7-8.
** Amane from ''KamenRiderBlade'' appears as an Amanogawa student this time, after her stint as an art student in ''KamenRiderDouble''.

** Abe was previously Mana's cousin Taichi in ''KamenRiderAgito''.
** Nao Nagasawa ([[NinpuuSentaiHurricaneger Nanami Nono/Hurricane Blue]] and [[KamenRiderDouble Lily Shirogane]]) appears as Gentaro's new teacher in #21-22. Interestingly, one of the guys at the gym was Gozo[=/=]Metal Dopant.

** Yuki's dad is ''[[KamenRiderOOO Doctor Maki.]]''

** [[spoiler: And now we know that Kengo is the owner of Core Switch. As well as have a status like [[KamenRiderDouble Philip]] and [[KamenRiderOOO Ankh]]]].
* NamesTheSame: It's not so long since there was [[KamenRiderKiva another Kengo]] (depicted as a {{Jerkass}} at one point) in ''Kamen Rider'' ...

** Any relation between Sarina Sonoda and [[KamenRiderFaiz a certain past Rider heroine]]?
*** That might be a second line of ThemeNaming, since Chuta Ohsugi seems to follow [[KamenRiderRyuki Daisuke Okubo.]]

** Kamen Rider Meteor isn't the first Rider to have a [[KamenRiderAgito Storm form]]. Interestingly, both are blue and staff-wielding.
** And now there's Goto, the Capricon Horoscopes - we just had another [[KamenRiderOOO Goto]], who also had a huge dream, but fortunately avoided the easy way to realize it.

** Played straight for Anna Tsuchiya, who does the opening song for her kids based on much her son loved ''KamenRiderOOO'' back when it aired.

* Fourze breaks the tradition that [[KamenRiderDouble W's]] [=FangJoker=] and [[KamenRiderOOO OOO's]] [=TaJaDor=] of premiering the MidSeasonUpgrade in the ''Movie Wars'' film before showing it in the series proper. In this case Rocket States was shown in the movie but Fourze true upgrade is Magnet States, which premiered in the tv show proper.
** Rocket States did later make a proper appearance in the series, in episode 41.

** Yayoi Tokuda was Rije in ''BakuryuuSentaiAbaranger''. She also played a minor character in ''KamenRiderKabuto''.

** Yayoi Tokuda was Rije in ''BakuryuuSentaiAbaranger''.

* GeniusBonus: Each of Fourze's Astro Switches is representative of a scientific principle or process, as listed [[http://kamenrider.wikia.com/wiki/Astroswitches#Trivia here.]]