History Series / KamenRiderBuild

Voted #5 series in the Heisei era and #5 product overall in NHK's All Kamen Rider Popularity Vote.

** There's a fourth group of man-made Fullbottles besides those of the three regions, called Lost Fullbottles. These include [[BatOutOfHell Bat]], [[SnakesAreSinister Cobra]], [[BigFancyCastle Castle]], [[JapaneseBeetleBrothers Kuwagata (Stag Beetle)]], [[OminousOwl Fukurō (Owl)]], [[DeadlyDisc CD]], [[HorseOfADifferentColor Shimauma (Zebra)]], [[ShearMenace Hasami (Scissors)]], [[DropTheHammer Hammer]], and [[WrenchWhack Spanner]]. They're used by Faust agents in various ways across the show:

*** Hokuto gets [[ThePhoenix Phoenix]]/ Robot,[[note]]debuted in ''Heisei Generations FINAL'' before it appeared in the show[[/note]] [[NobleWolf Wolf]]/[[SupernaturalPhone Smapho (Smartphone)]], [[BearsAreBadNews Kuma (Bear)]]/[[{{UsefulNotes/Television}} Televi (Television)]],[[note]]featured in the ''Birth! [=KumaTelevi=]!! VS. Kamen Rider Grease!'' DVD, though the Fullbottles appeared in the show beforehand[[/note]] [[SomethingAboutARose Rose]]/[[HelicopterBlender Helicopter]], Turtle/[[GadgetWatch Watch]],[[note]]only used offscreen[[/note]] {{Unicorn}}/Keshigomu (Eraser),[[note]]never used by Build, but the Fullbottles have appeared and Grease has used Keshigomu[[/note]] [[FriendlyNeighborhoodSpider Spider]]/[[FreezeRay Reizōko (Refrigerator)]], [[JapaneseBeetleBrothers Kabutomushi (Rhinoceros Beetle)]]/Camera,[[note]]both shown but not used in ''Raising the Hazard Level'', along with Turtle/Watch; and Spider has been used for special attacks[[/note]] [[HeroicDog Dog]]/[[MakeMeWannaShout Mic (Microphone)]], and SantaClaus/Cake.[[note]]neither appeared in the show at all[[/note]]

* ''Kamen Rider Build: Birth! [=KumaTelevi=]!! VS. Kamen Rider Grease!'', a ''Televi-kun'' magazine exclusive DVD special featuring Build's [=KumaTelevi=] Form.

* ''Kamen Rider Prime Rogue'', a ''Televi-kun'' magazine exclusive DVD special centering on Gentoku Himuro/Kamen Rider Rogue.

** Taizan Himuro is the [[TokenGoodTeammate most moral of the three leaders in the divided Japan. In fact he's actually quite supportive of the Kamen Riders protecting Japan, and goes out of his way to lessen casualties during the war and not be DrunkWithPower by the [[ArtifactOfDoom Pandora Box.]]

Ten years ago, Japan launched Project Prominence; the first successful expedition to UsefulNotes/{{Mars}}. If that wasn't enough, the astronauts managed to bring back with them proof of extraterrestrial life on the red planet - a mysterious cube with strange properties, found in ancient ruins. This artifact holds the potential of discovering a source of unlimited clean energy. With this incredible asset in their hand, all signs pointed at the advent of a GoldenAge for Japan... but then '''[[GoneHorriblyWrong everything went wrong]]'''.

* TheBadGuysAreCops: Because both Ryuga and Sento are on the run, they must often fight against Touto's [[MechaMooks Guardian]] forces while dealing with Smash. [[spoiler:At least before the war with Hokuto begins. Now they're must fight together with Gentoku/Night Rogue to protect Touto.]]

* ConspiracyKitchenSink: You've got {{Corrupt Politician}}s, {{Mad Scientist}}s, {{Nebulous Evil Organisation}}s, war-profiteering {{Mega Corp}}s and [[spoiler:evil [[AliensAreBastards aliens]] all involved in a conspiracy to kickstart a war in Japan.

** TheBigGuy: [[SixthRanger Kazumi Sawatari/Kamen Rider Grease]] is the muscle of the group (at least next to Banjo). He doesn't have Sento's genius and equipment or Ryuga's ever-escalating natural Hazard Level, but he's still a good fighter in his own right and incredibly physically tough.

** TheLancer: The position initially belongs to Soichi Isurugi before passing to Ryuga Banjo after Soichi’s departure. Soichi acts as an older parental figure to everyone, especially Sento and Misora, providing Sento with his counsel and being the one who first encouraged him to become Build, while Banjo matures into the role after tempering his early selfishness.
** TheBigGuy: Ryuga Banjo/Kamen Rider Cross-Z becomes the muscle of the group, as the only one outside of Sento that can fight as a Kamen Rider, with his hotheaded and impulsive attitude clashing with Sento's cool and collected nature. Each also pushes back against the other's self-loathing tendencies, providing each other with emotional support in times of crisis. Later, [[SixthRanger Kazumi Sawatari/Kamen Rider Grease]] fills this role. He doesn't have Sento's genius and equipment or Ryuga's ever-escalating natural Hazard Level, but he's still a good fighter in his own right.

* NebulousEvilOrganisation: Faust, the organization that are responsible for the Smash. Night Rogue and Blood Stalk are Faust's high-ranked members. [[spoiler:They're actually an unsanctioned military project run by a leading member of Touto's government, and nearly every named character at the Touto Institute of Advanced Matter Physics is actually a member of Faust.]]

*** The Tōto combos are [[RighteousRabbit Rabbit]]/[[TankGoodness Tank]], Gorilla/[[GemstoneAssault Diamond]], [[NobleBirdOfPrey Taka (Hawk)]]/[[GatlingGood Gatling]], [[{{Ninja}} Ninjya]]/[[ComicBook Comic]], [[PandaingToTheAudience Panda]]/[[RetroRocket Rocket]], [[SpikesOfDoom Harinezumi (Hedgehog)]]/[[PlayingWithFire Shōbōsha (Fire Truck)]], [[KingOfBeasts Lion]]/[[WeaponsThatSuck Sōjiki (Vacuum Cleaner)]], Dragon/[[CoolKey Lock (and Key)]],[[note]]though the Dragon Fullbottle is usually held by Cross-Z[[/note]] [[{{Pirate}} Kaizoku (Pirate)]]/[[CoolTrain Densha (Train)]], and [[CombatTentacles Octopus]]/[[LightEmUp Light (as in Light Bulb)]].

[[header:[[center:[-'''''Franchise/KamenRider'' -- Phase 2 Heisei Era'''\\
''[[Series/KamenRiderDouble Double]]'' | ''[[Series/KamenRiderOOO OOO]]'' | ''[[Series/KamenRiderFourze Fourze]]'' | ''[[Series/KamenRiderWizard Wizard]]'' | ''[[Series/KamenRiderGaim Gaim]]'' | ''[[Series/KamenRiderDrive Drive]]'' | ''[[Series/KamenRiderGhost Ghost]]'' | ''[[Series/KamenRiderExAid Ex-Aid]]'' | '''Build''' | ''[[Series/KamenRiderZiO Zi-O]]''\\
'''[[Series/KamenRiderDecade <<< Phase 1 Heisei Era]] | [[Series/KamenRiderZeroOne Reiwa Era >>>]]'''-]]]]]

** Blood Stalk, while initially appearing to be subservient to Rogue, [[TheStarscream proves exceedingly disloyal]], and he aids and manipulates all of the other factions in pursuit of his true goal to [[OmnicidalManiac destroy the world]]. [[spoiler:He's actually Evolt, the evil spirit from Mars responsible for destroying it in the first place and now possessing a human host.]]
* BigGood: There are actually 2 {{Big Good}}s: one's a human and one's an alien:
** Taizan Himuro is the TokenGoodTeammate of all the leaders in a divided Japan; in fact he's actually quite supportive of the Kamen Riders protecting Japan, and is only willing to lessen casualities during the war and not be DrunkWithPower by the [[ArtifactOfDoom Pandora Box.]]

-> ''"Ten years have passed since the Pandora Box was discovered on Mars and caused the infamous Skywall Incident. Our country was divided into three districts known as Touto, Seito, and Hokuto, resulting in utter chaos."''
-->The original OpeningNarration until episode 28

Ten years ago, Japan launched Project Prominence; the first successful expedition to Mars. If that wasn't enough, the astronauts managed to bring back with them proof of extraterrestrial life on the red planet - a mysterious cube with strange properties, found in ancient ruins. This artifact holds the potential of discovering a source of unlimited clean energy. With this incredible asset in their hand, all signs pointed at the advent of a GoldenAge for Japan... but then '''[[GoneHorriblyWrong everything went wrong]]'''.

* ExactWords: It was stated that ''Film/KamenRiderBuildBeTheOne'' happens after the Japanese Civil War. This caused many people and sources to think it took place after the series, but [[spoiler:in #42, Evolt destroys the Touto government thus ending the civil war in Seito's victory.]]

** The official spellings of a lot of names differ quite a bit from expectations, more so than usual. "Blood Stalk" was widely thought to be "Blood Stark", as it's the most likely meaning for the Japanese spelling ("Buraddo Sutāku"). [[spoiler:Ryuga]]'s Rider name is just the word "Claws" written in Japanese katakana, which fits his dragon motif, but it's officially spelled "Cross-Z". And Night Rogue was originally guessed by some to be "Knight Rogue" or even "Nitrogue," due to his engine motif.
** Uses of the word "Ninja" are officially romanized "Ninjya". Unlike most of Toei's odd Romanizations, it ''is'' a legitimate (if uncommon) way to spell the word in Japan.

** TheChick: Misora Isurugi begins as a cold DeadpanSnarker in contrast to Sento and her father's antics, but over time she warms up to the rest of nascita and becomes supportive and positive in her own way, playing the role of sister to Sento and providing Banjo with an abundance of ShipTease. She also provides them with support through her status as the idol Mii-tan, whose legion of devoted fans provide her with considerable versatility when it comes to gathering information on Smash attacks, raising funds, or seeking out obscure services.

* OminousCube: The Pandora Box is an ancient artifact retrieved from Mars that, once it was activated, raised gigantic walls that separated Japan into three sections. It also increased the aggression of everyone that was in the vicinity when it was first activated. [[spoiler:If the box is fully opened, it has the power to completely annihilate all life on a planet.]]

*** Seito has [[PantheraAwesome Tora (Tiger)]]/[[FlyingSaucer UFO]], [[AirWhale Kujira (Whale)]]/[[CoolPlane Jet]], [[GenialGiraffe Kirin (Giraffe)]]/[[BlowYouAway Senpūki (Electric Fan)]], [[ThreateningShark Same (Shark)]]/[[CoolBike Bike]],[[note]]all featured in ''Raising the Hazard Level'', with only token appearances in the show[[/note]] [[RhinoRampage Sai (Rhino)]]/[[KillItWithFire Dryer (as in Hair Dryer)]], [[EverythingsBetterWithPenguins Penguin]]/[[CoolBoard Sukebō (Skateboard)]], [[OurGhostsAreDifferent Obake (Ghost)]]/[[MagnetismManipulation Magnet]],[[note]]all three shown but not used in ''Raising the Hazard Level''; and Magnet and Dryer have been used for special attacks[[/note]] [[BeeAfraid Hachi (Bee)]]/[[CoolBoat Sensuikan (Submarine)]], [[note]]Build used Sensuikan for an attack in ''Raising the Hazard Level'', but the combo has never been used to transform[[/note]] [[TheMarvelousDeer Shika (Deer)]]/{{Pyramid|Power}},[[note]]seen in group shots but never explicitly identified[[/note]] and [[BatOutOfHell Bat]]/[[EnormousEngine Engine]].[[note]]used by [=MadRogue=] instead of Build[[/note]]

*** Other Best Matches programmed into the Build Driver toy include [[EverythingsBetterWithDinosaurs Kyōryū (Dinosaur)]]/[[CoolCar F1]], [[NeverSmileAtACrocodile Crocodile]]/[[HandyRemoteControl Remocon (Remote Control)]] and [[ScaryScorpions Scorpion]]/[[GoldMakesEverythingShiny Gold]], though none ever appeared in the show. Scorpion/Gold was planned to be a Hokuto combo, but it was dropped for some reason and the holiday promotion SantaClaus/Cake replaced it in Hokuto's listing.

* WeaponOfChoice:
** Just as Build has several forms, he gets several weapons to go with those forms:
*** The Drill Crusher, which [[MixAndMatchWeapon switches between]] [[ThisIsADrill drill]] (or rather, drill-shaped sword) and gun forms. This is his default weapon and is not tied to any specific form.
*** Gatling forms get, of course, a [[GatlingGood gatling gun]] called the Hawk Gatlinger.
*** Ninjya and Comic forms use a CoolSword called the [[{{Yonkoma}} 4-Koma]] Ninpōtō; which activates ninja techniques of duplication, fire, wind, and smoke bombs.
*** For Kaizoku forms, he has the Kaizoku Hassyar [[TheStraightandArrowPath bow]].
*** [=RabbitRabbit=] and [=TankTank=] have the Fullbottle Buster; another sword/gun combo but [[{{BFS}} much]] [[{{BFG}} bigger]].
** Cross-Z has his own CoolSword, a music-themed blade called the Beat Closer (though can be used by anyone else using the Dragon Fullbottle too). As Cross-Z Magma, he gets the [[MagmaMan magma-based]] Cross-Z Magma Knuckle PowerFist (though he can use it as regular Cross-Z as well). Later in the series Sento creates the [[AnIcePerson ice-element]] Grease Blizzard Knuckle as well, which Grease uses to access his EleventhHourSuperpower Grease Blizzard.
** Grease and Cross-Z Charge both use a wrist blaster/PileBunker hybrid weapon called the Twin Breaker. Grease's first upgrade allows him to wield both of them.
** Night Rogue and Blood Stalk each have a [[SwordAndGun Transteam Gun and Steam Blade]], which [[BifurcatedWeapon can combine to form the Steam Rifle]]. Both continue using them after upgrading to being Kamen Riders, as does [=MadRogue=].
** The Kaisers and Kamen Rider Rogue use updated Transteam Guns called Nebulasteam Guns, which can also be combined with the Steam Blade to form the Nebulasteam Rifle.

-> ''"Ten years have passed since the Pandora Box was discovered on Mars and caused the infamous Skywall Incident. Our country was divided into three districts known as Touto, Seito, and Hokuto, resulting in utter chaos."''[[note]]From [[Recap/KamenRiderBuildEp29TheOpeningBellRings episodes 29]] to [[Recap/KamenRiderBuildEp35TowerOfDestruction 35]], the narration changed to "In order to open the Pandora Box and release its massive amount of energy capable of destroying the world, a new battle has begun!". Then from [[Recap/KamenRiderBuildEp36TheStarHuntingEvolt episode 36]] onward, [[spoiler:"The Pandora Box, which contains enough energy to destroy the Earth, has finally been opened! Standing up to Evolt, the extraterrestrial life form that has gained its power, are the Kamen Riders!"]][[/note]]

*** Hokuto gets [[ThePhoenix Phoenix]]/ Robot,[[note]]debuted in ''Heisei Generations FINAL'' before it appeared in the show[[/note]] [[NobleWolf Wolf]]/[[SupernaturalPhone Smapho (Smartphone)]], [[BearsAreBadNews Kuma (Bear)]]/[[{{UsefulNotes/Television}} Televi (Television)]],[[note]]featured in the ''Birth! [=KumaTelevi=]!! VS. Kamen Rider Grease!'' DVD, though the Fullbottles appeared in the show beforehand[[/note]] [[SomethingAboutARose Rose]]/[[HelicopterBlender Helicopter]], {{Turtle|Power}}/[[GadgetWatch Watch]],[[note]]only used offscreen[[/note]] {{Unicorn}}/Keshigomu (Eraser),[[note]]never used by Build, but the Fullbottles have appeared and Grease has used Keshigomu[[/note]] [[FriendlyNeighborhoodSpider Spider]]/[[FreezeRay Reizōko (Refrigerator)]], [[JapaneseBeetleBrothers Kabutomushi (Rhinoceros Beetle)]]/Camera,[[note]]both shown but not used in ''Raising the Hazard Level'', along with Turtle/Watch; and Spider has been used for special attacks[[/note]] [[HeroicDog Dog]]/[[MakeMeWannaShout Mic (Microphone)]], and SantaClaus/Cake.[[note]]neither appeared in the show at all[[/note]]