History Fridge / KamenRiderZeroOne

* Horobi's dream is to become a parent, so why it suddenly changes to KillALLHumans? He still holding on to his original dream and this is what motivate his current goal. After seeing how Ark harms Jin many times, he must have [[WellIntentionedExtremist concludes that the only way]] [[KnightTemplarParent to protect his son]] from [[AsLongAsThereIsEvil the Ark]] is to get rid of its source, i.e [[HumansAreBastards humanity]].

* When Naki makes a pun to demonstrate Fuwa's unexpected funnybone, she concludes with Aruto's catchphrase, "Gotta have Aruto!" This suggests that, after observing both Aruto and Isu using the catchphrase when ''they'' make puns, and in the absence of evidence to the contrary, ''Naki has machine-learned that one is "supposed" to utter this phrase when one makes such a pun.'' And so they do, perfectly deadpan. Aside from being hilarious, this also helps demonstrate that Naki is not as socialized as other [=HumaGears=] who have had greater exposure to human behavior.

* Horobi's dream is to become a parent, so why it suddenly changes to KillALLHumans? He still holding on to his original dream and this is what motivate his current goal. After seeing how Ark harms Jin many times, he must have [[WellIntentionedExtremist concludes that the only way]] [[KnightTemplarParent to protect his son]] from the Ark is to get rid of its source, i.e humanity.

* Horobi's dream is to become a parent, so why it suddenly changes to KillALLHumans? He still holding on to his original dream and this is what motivate his current goal. After seeing how Ark harms Jin many times, he must have [[wellintentionedextremist concludes that the only way]] [[KnightTemplarParent to protect his son]] from the Ark is to get rid of its source, i.e humanity.

* Horobi's dream is to become a parent, so why it suddenly changes to KillALLHumans? He still holding on to his original dream and this is what motivate his current goal. After seeing how Ark harms Jin many times, he conclude that [[WellIntentionExtremist the only way]] to [[KnightTemplarParent protect his son]] from the Ark is to get rid of its source, i.e humanity.

* Ark pulled a XanatosGambit relating to the Assault Wolf Progrise Key. Seeing as Zea was able to predict the creation of the Assault Trigger, it's more than possible for Ark to predict that Naki was inside of Fuwa. If she was, then the Assault Wolf Progrise Key would link her back to Ark. If she wasn't, then Ark could more easily revive her and give her the Progrise Key. Which further implies that Ark [[BatmanGambit planned for Fuwa to steal the Assault Wolf Progrise Key to test its theory]], knowing that if Naki wasn't inside of Fuwa it could just steal the Assault Wolf Progrise Key back.
* When Naki makes a pun to demonstrate Fuwa's unexpected funnybone, she concludes with Aruto's catchphrase, "Gotta have Aruto!" This suggests that, after observing both Aruto and Isu using the catchphrase when ''they'' make puns, and in the absence of evidence to the contrary, ''Naki has machine-learned that one is "supposed" to utter this phrase when one makes such a pun.'' And so she does, perfectly deadpan. Aside from being hilarious, this also helps demonstrate that Naki is not as socialized as other [=HumaGears=] who have had greater exposure to human behavior.

** He would have gotten the Key authorized to open anyway if he inserted it into the A.I.M.S. [=ShotRiser=] first (like how Yua does it), but he is too hot-blooded of an idiot to realize it.

* When Naki makes a pun to demonstrate Fuwa's unexpected funnybone, she concludes with Aruto's catchphrase, "Gotta have Aruto!" This suggests that, after observing both Aruto and Isu using the catchphrase when ''they'' make puns, and in the absence of evidence to the contrary, ''Naki has machine-learned that one is "supposed" to utter this phrase when one makes such a pun.'' And so she does, perfectly deadpan. Aside from being hilarious, this also helps demonstrate that Naki is not as socialized as other HumaGears who have had greater exposure to human behavior.

** The Ark designed it's Driver to be as efficient as possible by not relying on the lengthy process of readying it and a Progrise Key that most other belt require.

* The logic behind the Ark Zero-Driver only requiring the push of a button to activate is 2-fold.

*** Zea can be seen as a metaphorical God by the [=HumaGear=], seeking guidance for what they need to do prior their creation from Zea, instead Ark is the opposite of the spectrum, a metaphorical Devil that actively corrupting the [=HumaGear=] ant to certain extent, Zero-One through its proxy, Metsuboujinrai.net or indirectly by Gai.

** LightIsGood vs DarkIsEvil
***

* Zea and Ark were actually foil to each other in addition of having a dynamic of LightDarknessJuxtaposition:

* Gai keeps going after Hiden Manufacturing despite not having a legal leg to stand on - he doesn't have the rights to the manufacturing process, the construction or parts used in [=HumaGears=], or even the robots themselves. He enacted a toothless recall to try to round them up and destroy them, only for people to either hold onto their now non-functioning unit or discard it illegally rather than listen to him. He attacks their office, employees, clients, and (from a legal perspective) private property of their customers. Not ''once'' do the authorities do anything about it. Remember that politician who used forged evidence and dozens of plants in the audience to astroturf their campaign to winning the vote? Yeah, Gai's [[ScrewTheRulesIHaveMoney bribery]] not only won him the competition, it gave him the clout to take over ''a government agency'' and [[ScrewTheRulesIMakeThem change their purpose from law enforcement to his personal team of goons]]. Gai is so far above the law now, nothing can stop him short of the other Kamen Riders standing in his way.

** [[InASingleBound Rising Hopper]] suggests transitioning from a jump to a [[DivingKick Rider Kick]].
** [[ImprobableAimingSkills Shooting Wolf]] suggests firing bullets.
** [[SuperSpeed Rushing Cheetah]] suggests outrunning enemies.
** [[PoisonousPerson Sting Scorpion]] suggests stinging with powerful frightening claws.
** [[{{Flight}} Flying Falcon]] suggests attacking while airborne.
** [[AbsurdCuttingPower Biting Shark]] suggests biting attacks.
** [[MightyGlacier Punching Kong]] suggests raw physical power.
** [[PlayingWithFire Flaming Tiger]] suggests explosive force.
** [[BeeAfraid Lightning Hornet]] suggests piercing stings.
** [[AnIcePerson Freezing Bear]] suggests releasing cold air.
** [[MiniMecha Breaking Mammoth]] suggests a giant crushing machine.
** [[HornAttack Amazing Hercules]] suggests pincers that incapacitate the opponent.
** [[ShockAndAwe Sparking Giraffe]] suggests electric attacks.
** [[MoreDakka Gatling Hedgehog]] suggests shooting a large amount of spines.
** [[AbsurdlySharpBlade Exciting Stag]] suggests crossing razor sharp blades.
** [[FoeTossingCharge Crushing Buffalo]] suggests sending enemies flying by charging.
** [[TrapMaster Trapping Spider]] suggests inescapable webbing.
** [[BlowYouAway Storming Penguin]] suggests controlling wind.
** [[MakingASplash Splashing Whale]] suggests an all-encompassing wave of water.
** [[PowerCopying Hopping Kangaroo]] suggests infinite possible powers.
** [[SinisterScythe Fighting Jackal]] suggests deciding the fate of those around them.
** [[EliteMooks Invading Horseshoe Crab]] suggests mass produced battle armor that improves upon the less powerful [[MechaMooks Trilobite Magia]].
** The Attaché Weapons also have text-to-speech showing how to use them. The Attaché Calibur releases an AbsurdlySharpBlade, and the Attaché Shotgun releases a {{BFG}}. Horobi’s Attaché Arrow meanwhile releases a bow with ImprobableAimingSkills.
** The Zetsumerise Keys have text-to-speech descriptions of their Magia when in the Hiden Zero-One Driver and the A.I.M.S. [=ShotRiser=].
*** The Berotha Magia has a big head and wields [[SinisterScythe scythes]].
*** The Kuehne Magia has a large [[RazorWings boomerang-like collar]].
*** The Ekal Magia has [[FangsAreEvil sharp teeth]].
*** The Neohi Magia has [[CombatTentacles many fluttering tendrils]].
*** The Onycho Magia [[WingedHumanoid flies freely in the sky]].
*** The Vicarya Magia is [[NighInvulnerable protected by a rock-hard shell]].
*** The Gaeru Magia appears to have a [[NestedMouths child in its mouth]].
*** The Dodo Magia is ferocious and [[AdaptiveAbility grows after battles]].
*** The Arsino Magia has [[HornedHumanoid two powerful horns]].

** The Progrise Keys for the Legend Riders reference their series in their text-to-speech.
*** [[Series/KamenRiderKuuga ThumbsUpping Kuuga]] has the tagline of ''Kamen Rider Kuuga''.
*** [[Series/KamenRiderAgito TripleFlashing Agito]] references Shouichi’s main driving force throughout the series.
*** [[Series/KamenRiderRyuki FinalVenting Ryūki]] references ''Kamen Rider Ryūki''’s tagline.
*** [[Series/KamenRider555 ExceedCharging Faiz]] references the visual effect used for the FinishingMove in that series.
*** [[Series/KamenRiderBlade TurnUpping Blade (♠)]] references the Blade (♠) Riders, who fought against the fated Battle Fight with cards.
*** [[Series/KamenRiderHibiki Drumming Hibiki]] references the show’s focus on constantly bettering oneself.
*** [[Series/KamenRiderKabuto ClockUpping Kabuto]] references Tendou’s AGodAmI tendencies.
*** [[Series/KamenRiderDenO OreVisiting Den-O]] references the Denliner.
*** [[Series/KamenRiderKiva WakeUpping Kiva]] references Wataru’s pre-CharacterDevelopment personality as a Hikkomori.
*** [[Series/KamenRiderDecade KamenRiding Decade]] references Decade being the Destroyer of Worlds.
*** [[Series/KamenRiderW CrimeCounting Double]] references Double being two detectives who combine into one Kamen Rider.
*** [[Series/KamenRiderOOO TaToBaSinging OOO]] references the original OOO, a king with the power of desire.
*** [[Series/KamenRiderFourze SpaceComing Fourze]] references the friendship of the Kamen Rider Club.
*** [[Series/KamenRiderWizard MagicShowing Wizard]] references Wizard’s magic and status as the final hope.
*** [[Series/KamenRiderGaim OnStaging Gaim]] references the Beat Riders and the Sengoku Drivers.
*** [[Series/KamenRiderDrive TireChanging Drive]] references Drive being a detective with a CatchPhrase of his brain being in top gear.
*** [[Series/KamenRiderGhost GoGoGoGoing Ghost]] references the Ghost Riders fighting with the power of historical heroes.
*** [[Series/KamenRiderExAid LevelUpping Ex-Aid]] references Ex-Aid being a doctor who saved patients, and had a CatchPhrase of refusing to use continues.
*** [[Series/KamenRiderBuild BestMatching Build]] references Build being a genius physicist.
*** [[Series/KamenRiderZiO RiderTiming Zi-O]] references Zi-O’s dream of becoming an honorable and kind king.

* The Attaché Weapons require Progrise Keys to be inserted closed to utilize them, allowing the Riders who can only open them by inserting them into their {{Transformation Trinket}}s to perform finishers with them.

* Aruto and Fuwa are briefly caught flat-footed when the Lion Raider uses lit dynamite on them. Considering that technology has advanced far enough that there's [=HumaGears=], it's possible that [[AluminiumChristmasTrees most people then have never seen dynamite outside of]] ''WesternAnimation/LooneyTunes''.

** Where did Metsubojinrai got their zetsumerise keys? Each humagear has their own progrise key that can store data. Metsubojinrai likely used discarded ones from the humagears they stole and converted it.
** Why do the progrise keys have ability names on them? Each humagear progrise key has their job name.
** Why do humagears have a particular tattoo on their body? It's for progrise key scanning.
** How can the destroyed Humagears be remade with all the memories intact? With the data from their progrise keys.

* By observing Jin's characterization before and after his revival, it makes much more sense if you think about it. Jin's PsychopathicManchild tendencies are influenced by his connection towards the Ark through the use of the [=ForceRiser=], which '''''forces''''' him to serve Metsuboujinrai.net; after his revival, he acts more mature and independent, while getting his handa on the [=SlashRiser=] can be interpreted as him '''''slashing'''''/severing his ties from the Ark while maintaining his facade of loyalty to Metsuboujinrai.net.

* [[BigBad Gai]] has every Progrisekey save for Hopping Kangaroo, Assault Wolf, Metal Cluster Hopper, and Burning Falcon either in his possession or on file thanks to the Thousand Jacker, meaning he could theoretically have an army of [[SociopathicSoldiers Raiders with various powers and abilities]].