History Trivia / KamenRiderBuild

* DevelopmentGag: The Evol Driver has unused sounds for Evol Lock (the abiotic Best Match for the Dragon Fullbottle), Evol Tank, and Evol Dinosaur (in relation to the scrapped Kyoryu Fullbottle), suggesting they were planned to be made/used but scrapped. Evolto implicitly references Evol Tank in particular when he receives the Evol Rabbit Evolbottle after [[spoiler:possessing Sento]], being visibly disappointed by the outcome.

** On a side note [[spoiler:Evolto was later revealed to be the [[TheManBehindTheMan true villain]] pulling everyone's strings.]]

** Bizarrely, Evolt/[[SpellMyNameWithAnS Evolto]] is also the name of [[https://twitter.com/eVolt_UK British-based]] [[https://twitter.com/EvoltoDesign companies]].

! Trivia Tropes
* DevelopmentGag: The Evol Driver has unused sounds for Evol Lock (the abiotic Best Match for the Dragon Fullbottle), Evol Tank, and Evol Dinosaur (in relation to the scrapped Kyoryu Fullbottle), suggesting they were planned to be made/used but scrapped. Evolto implicitly references Evol Tank in particular when he receives the Evol Rabbit Evolbottle after [[spoiler: possessing Sento]], being visibly disappointed by the outcome.

** Vernage is often nicknamed "Useless Queen of Mars" due to her VA more famous role as a certain [[LightNovel/KonoSuba Useless Goddess]]. It is rather ironic, given Vernage is the only reason the heroes have ever had any chance at all to stop Evolt.

** A lot of fans caught on to the hints that [[spoiler: [[TomatoInTheMirror Sento was Katsuragi]]]] long before episode 15 confirmed it.

** Although it wasn’t unanimous, [[spoiler:Nariaki becoming Mad Rogue]] was something a lot of people guessed.
* MemeAcknowledgement: The final episode nods to a couple of the show's more popular memes: [[spoiler:In the new world, Taro Satou is a famous rockstar while Sento Kiryu is literally unknown. Soichi and Misora (who are fans of Tarou's) quote his memetic "We're having yakiniku tonight!" Meanwhile, Utsumi (who's working in a factory) tries to snap a metal bar over his knee like he did Namba's cane...it doesn't go so well for him this time around.]]

*** In NEW WORLD: Kamen Rider Cross-Z has [[spoiler: Cross-Z Evol]] is a combination of [[spoiler: Evol Black Hole form's horns mixed Cross-Z's helmet and Evol Black Hole's waist cape. All Repainted in Neon and dark cyan]]
*** [[spoiler: Kamen Rider Killbas is a repainted combination of made parts of Blood Stalk and Night Rogue/Mad Rogue's helmet, Blood Stalk's shoulders and gauntlets and Hazard Form's feet and shins.]]

** [[Series/KamenRiderOOO Kougami's office]] is used as Nanba's office, after it was already reused as [[Series/KamenRiderExAid Masamune's guest room]].

** This is Yukari Taki's third appearance in the ''Kamen Rider'' franchise, as she previously played unrelated characters in one of the ''Series/KamenRiderW'' movies and an episode of ''Series/KamenRiderGhost'', respectively. Similarly, Akaso Eiji (Ryuga) had a prominent role in the second season of ''Series/KamenRiderAmazons''.

** Akira Hamada (Juzaburo Namba), who previously portrayed a minor character in ''Series/KamenRiderOOO'', though actually made his first appearance in a ''Kamen Rider'' series all the way back in ''Series/KamenRiderStronger'' as the villain Mr. Titan.
** Ryoko Gi plays Yoshiko Tajimi, years after playing the Zone Dopant in ''Series/KamenRiderDouble''.

! Assorted Trivia

* DevelopmentGag: The Evol Driver has unused sounds for Evol Lock (the abiotic Best Match for the Dragon Fullbottle), Evol Tank, and Evol Dinosaur (in relation to the scrapped Kyoryu Fullbottle), suggesting they were planned to be made/used but scrapped. Evolt implicitly references Evol Tank in particular when he receives the Evol Rabbit Evolbottle after [[spoiler: possessing Sento]], being visibly disappointed by the outcome.

** Ryuuga has been nicknamed "Dumb Blade" because Eiji Akaso resembles [[Series/KamenRiderBlade Takayuki Tsubaki]] and… [[DumbMuscle well…]]

** Practically everyone was guessing from the very beginning that [[spoiler:Ryuuga would be the one (no pun intended) to become Kamen Rider Cross-Z]].

** Other fans had a hunch that [[spoiler: Gentoku would become Kamen Rider Rogue as a potential MidSeasonUpgrade.]]
** On a side note [[spoiler: Evolt was later revealed to be the [[TheManBehindTheMan true villain]] pulling everyone's strings.]]
** Although it wasn’t unanimous, [[spoiler: Nariaki becoming Mad Rogue]] was something a lot of people guessed.
* MemeAcknowledgement: The final episode nods to a couple of the show's more popular memes: [[spoiler:In the new world, Sato Taro is a famous rockstar while Sento Kiryu is literally unknown. Soichi and Misora (who are fans of Taro's) quote his memetic "We're having yakiniku tonight!" Meanwhile, Utsumi (who's working in a factory) tries to snap a metal bar over his knee like he did Nanba's cane...it doesn't go so well for him this time around.]]

** Eiji Akaso, who plays Ryūga Banjō, has said that his favorite Rider is Kuuga and his grandfather once gave him a toy Arcle for his birthday.

** Shōgo Mutō, the show’s head writer, said in an interview that he became a fan of the Heisei Riders while watching the shows with his son, and that his overall goal with ''Build'' is to create a series that kids and adults alike can enjoy.

** Ryōko Gi plays Yoshiko Tajimi, years after playing the Zone Dopant in ''Series/KamenRiderDouble''.

** Since ''Gaim'' not to have the succeeding Rider make an EarlyBirdCameo in person in the show's final TV episodes. Instead, a reverse scenario occurs where Sento and Ryuga appear in their succeeding Rider's first two episodes to immediately establish that series as a CrisisCrossover.

* CastingGag:
** With a dose of ActorAllusion for Eiji Akaso, who had [[Series/KamenRiderAmazons experienced something tragic close to home.]]
** The teenage versions of the Washio brothers (seen in flashbacks) are played by Shinta Takaiwa (Fu) and Taiga Watanabe (Rai), the sons of ''Kamen Rider'' suit actors Seiji Takaiwa and Jun Watanabe, who in this series play Build and Night Rogue respectively.
%%** Yoshiki Tajimi is played by Ryoko Gi, the widow of the late actor Tomoyuki Dan, who previously played [[Series/KamenRiderW Isaka Shinkuro/Weather Dopant.]]

* MythologyGag:
** For the Legend Rider form for Den-O, he uses the Momotaros and Train (Densha) Fullbottles. [[note]]Probably the most obvious one of the Legend Riders.[[/note]]
** For the Legend Rider form for Decade, he uses the Rider Card and Camera Fullbottles. [[note]]Interestingly enough, both of them are inorganic-themed Fullbottles.[[/note]]
** For the Legend Rider form for Double, he uses the Detective (Tantei) and USB Memory Fullbottles. [[note]]The latter one referencing the Gaia Memories.[[/note]]
** For the Legend Rider form for OOO, he uses the Hawk (Taka) and Medal Fullbottles. [[note]]Forming a specific reference to the Taka/Hawk Medal.[[/note]]
** For the Legend Rider form for Fourze, he uses the Friendship (Yuujou) and Rocket Fullbottles.
** For the Legend Rider form for Wizard, he uses the Magician (Mahotsukai) and Diamond Fullbottles. [[note]]Forming a specific reference to Wizard's Infinity Style.[[/note]]
** For the Legend Rider form for Gaim, he uses the Orange and Lock Fullbottles. [[note]]Forming a specific reference to the Orange Lockseed.[[/note]]
** For the Legend Rider form for Drive, he uses the Police Officer (Keisatsukan) and F1 Fullbottles. [[note]]Forming a specific reference to Drive's Type Formula form.[[/note]]
** For the Legend Rider form for Ghost, he uses the Ghost (Obake) and Parka Fullbottles. [[note]]Forming a specific reference to Ghost Parkas.[[/note]]
** For the Legend Rider form for Ex-Aid, he uses the Doctor and Game Fullbottles. He uses this form in the ''Heisei Generations Final'' movie.

** Practically everyone was guessing from the very beginning that [[spoiler: Ryuuga would be the one (no pun intended) to become Kamen Rider Cross-Z]].

** Vernage is often nicknamed "Useless Queen of Mars" due to her VA's more famous role as a certain [[LightNovel/KonoSuba Useless Goddess]]. It's rather ironic, given Vernage is the only reason the heroes have ever had any chance at all to stop the BigBad.

** [[spoiler:Soichi Isurugi is Blood Stalk, [[http://www.toei.co.jp/tv/build/story/1210985_2766.html as revealed by Toei]].]]

** It's possible that at one point, a crossover between ''Build'' and ''Series/KaitouSentaiLupinrangerVsKeisatsuSentaiPatranger'' was planned, as indicated by a Super Sentai Full Bottle toy (which explicitly shows the 2 Red Rangers from the series, as opposed to a generic Sentai team[[note]]granted, there's also a Kamen Rider fullbottle which shows Build, Cross-Z, Grease, and Rogue[[/note]]), and a sound effect exists specifically for ''Build'' on the VS Changer in addition to the general "Kamen Rider" sound effect, but was scrapped; possibly due to the decision to stop making spring crossover movies (which all previous crossovers had promoted). It’s unknown if they cancelled it ''because'' of the decision to stop making spring crossover movies, or if they were going to go ahead with it regardless, but backed out at the last minute.

** And then there's Akira Hamada (Juzaburo Namba) who previously portrayed a minor character in ''Series/KamenRiderOOO'', though actually made his first appearance in a ''Kamen Rider'' series all the way back in ''Series/KamenRiderStronger'' as the villain Mr. Titan.

** Prior to joining Team Build, Kazumi was dubbed "Greasy Boy" or "Grease Man" in reference to his Kamen Rider name. Kazumi is also tricky because it sounds similar to Kasumi, who died in the second episode. Now that his name comes up more, it's died down.

** Although it wasn't unanimous, [[spoiler: Nariaki becoming Mad Rogue]] was something a lot of people guessed.

** Yasuyuki Maekawa, the actor for Sōichi Isurugi, stated in a press conference that Skyrider and Stronger were his favorite Rider series growing up.

** Eiji Akaso, who plays Ryūga Banjō and was previously in Season 2 of ''Series/KamenRiderAmazons'', has said that his favorite Rider is Kuuga and his grandfather once gave him a toy Arcle for his birthday.

** Atsuhiro Inukai, Sento's actor, mentioned at a press conference that he watched ''Series/KamenRiderKabuto'' when he was in middle school.
** Shogo Muto, the show's head writer, said in an interview that he became a fan of the Heisei Riders while watching the shows with his son, and that his overall goal with ''Build'' is to create a series that kids and adults alike can enjoy.

** It's possible that at one point, a crossover between ''Build'' and ''Series/KaitouSentaiLupinrangerVsKeisatsuSentaiPatranger'' was planned, as indicated by a Super Sentai Full Bottle toy (which explicitly shows the 2 Red Rangers from the series, as opposed to a generic Sentai team[[note]]granted, there's also a Kamen Rider fullbottle which shows Build, Cross-Z, Grease, and Rogue[[/note]]), and a sound effect exists specifically for ''Build'' on the VS Changer in addition to the general "Kamen Rider" sound effect, but was scrapped; possibly due to the decision to stop making spring crossover movies (which all previous crossovers had promoted). It's unknown if they cancelled it ''because'' of the decision to stop making spring crossover movies, or if they were going to go ahead with it regardless, but backed out at the last minute.
** Hacking the Evoldriver reveals 3 additional unreleased Evolbottles - Tank, Lock, and Dinosaur. Tank and Lock were presumably scrapped on the grounds that, with the exception of the Rider Evolbottle, all of the Evolbottles Evol creates have corresponding Organic Fullbottles (and Tank and Lock are ''inorganic'' Fullbottles), and Dinosaur was likely scrapped because the corresponding Full Bottle was scrapped as well.

* PromotedFanboy: Atsuhiro Inukai, Sento's actor, mentioned at a press conference that he watched ''Series/KamenRiderKabuto'' when he was in middle school.

** In #15 our heroes somehow travel all the way to...[[Series/KamenRiderExAid Seito Hospital?]]
* StuntCasting: Possibly in the case of Sota Fukushi, Series/KamenRiderFourze, appearing in ''Heisei Generations Final'' after his agency kept him away from the franchise for about five years. Then you learn that he's got a major motion picture coming soon, the LiveActionAdaptation of ''Anime/{{Bleach}}'', and it makes a little more sense.

** It's possible that at one point, a crossover between ''Build'' and ''Series/KaitouSentaiLupinrangerVsKeisatsuSentaiPatranger'' was planned, as indicated by a Super Sentai Full Bottle toy (which explicitly shows the 2 Red Rangers from the series, as opposed to a generic Sentai team[[note]]granted, there's also a Kamen Rider fullbottle which shows Build, Cross-Z, Grease, and Rogue[[/note]]), and a sound effect exists specifically for ''Build'' on the VS Changer in addition to the general "Kamen Rider" sound effect, but was scrapped; possibly due to the decision to stop making spring crossover movies (which all previous crossovers had promoted).

** [[spoiler:Grease Blizzard]] is a combination of [[spoiler:Grease's helmet, chest armor and right bracer with the base suit and Destruction One claw arm from Build [=PhoenixRobo=] Form, all repainted blue.]]
** In NEW WORLD: Kamen Rider Cross-Z has [[spoiler: Cross-Z Evol]] is a combination of [[spoiler: Evol Black Hole form's horns mixed Cross-Z's helmet and Evol Black Hole's waist cape. All Repainted in Neon and dark cyan]]

** [[spoiler:Grease Blizzard]] is a combination of [[spoiler:Grease's normal helmet and chest armor with a modified Build [=PhoenixRobo=] Form suit, all repainted blue.]]

** It's possible that at one point, a crossover between ''Build'' and ''Series/KaitouSentaiLupinrangerVsKeisatsuSentaiPatranger'' was planned, as indicated by a Super Sentai Full Bottle toy (which explicitly shows the 2 Red Rangers from the series, as opposed to a generic Sentai team), but was scrapped; possibly due to the decision to stop making spring crossover movies (which all previous crossovers had promoted).

** In NEW WORLD: Kamen Rider Cross-Z has [[spoiler: Cross-Z Evol]] is combination of [[spoiler: Evol Black Hole form's horns mixed Cross-Z's helmet and Evol Black Hole's waist cape. All Repainted in Neon and dark cyan]]

*** [[spoiler: Kamen Rider Killbas is a repainted combination of made parts of Blood Stalk and Night Rogue/Mad Rogue's helmet, Blood Stalk's shoulders and gauntlets and Hazard Form's feet and shins.

** The teenage versions of the Washio brothers (seen in flashbacks) are played by Shinta Takaiwa (Fu) and Taiga Watanabe (Rai), the sons of ''Kamen Rider'' suit actors Seiji Takaiwa and Jun Watanabe, who in this series play Build and Night Rogue respectively.

** Yoshiki Tajimi is played by Ryoko Gi, the widow of the late actor Tomoyuki Dan, who previously played [[Series/KamenRiderW Isaka Shinkuro/Weather Dopant.]]

** Some fans refer to [[spoiler: Shinobu Katsuragi's]] Rider form as Another Build, in reference to [[Series/KamenRiderAgito Another Agito.]]

** [[spoiler:Grease Blizzard is a combination of Grease's normal helmet and chest armor with a modified Build [=PhoenixRobo=] Form suit, all repainted blue.]]