Kamen Rider Zi-O: Over Quartzer

is a Japanese superhero film that serves as the Summer Movie adaptation of Kamen Rider Zi-O, double billed with , and is a tribute to both Kamen Rider Drive and the Heisei-era. In the film, Sougo's kingship is challenged by Quartzer, a group which attends to wipe Kamen Rider Drive from history. Ahead of his in-series debut, the film features an early-bird appearance of Kamen Rider Zero-One, the first Rider to helm the Reiwa-era. 
The catchphrases for the movie are and .
==Synopsis==
Sougo and his friends end up in 16th century Japan during the legendary battle between Oda Nobunaga and Takeda Katsuyori after being approached by Go Shijima to prevent the erasure of Krim Steinbelt and Kamen Rider Drive from history. As Woz reveals himself to be a member of Quartzer, a group of time traveling observers, the truth behind Ohma Zi-O becomes clearer...
==Continuity and Placement==
*Kamen Rider Zi-O: This film takes place in an alternate timeline,This is confirmed in and followed by the events in Kamen Rider Zi-O: Final Stage. branching off from the end of Episode 43. 
*Kamen Rider Zero-One: This film is non-canon and follows an alternate Zero-One in the "Over Quarter" timeline.
==Plot==
Sougo Tokiwa awakens from a dream of seeing a yellow Rider with a grasshopper motif, panicking that this new Rider had taken his place as Demon King.
Soon afterwards, Sougo, Geiz, Tsukuyomi, and Woz receive a call for help from both Go Shijima and Krim Steinbelt, who plead for the four to go back in time and protect Krim's ancestor from being killed, which would result in Drive's history disappearing in the process. The team would follow through this request and travel to 1575, during the prelude from the famed Battle of Nagashino. Sougo and Geiz infiltrate Oda Nobunaga's ranks, but Geiz ends up taking Nobunaga's place as Nobunaga runs off and tries to court Clara Steinbelt. Discovering her identity as Krim's ancestor, they move in to protect her from being attacked by Kamen Rider Zonjis and Kamen Rider Zamonas.
As the Battle for Nagashino began, a cowardly Nobunaga pleads Geiz to take his place, which he does. The Nobunaga army wins as history tells, but Geiz later calls Nobunaga out for "changing history". Sougo decides to let Nobunaga do what he wants, as this was "his present". He compares this to when Geiz and Tsukuyomi first came to his timeline, where they were sure Sougo would inevitably become Ohma Zi-O. But with the future having been proven possible to be changed, Souga refraines from forcing Nobunaga into a role he doesn't desire.
After delivering Clara Steinbelt back to her lover Pietro, the team return to 2019, where Krim and Go wait for them and give Sougo the Drive and Mach Ridewatches. However, Woz steals the Ridewatches and presents them to his "true" leader, SOUGO Tokiwa. As a member of Quartzer, it's their job to control all of history to SOUGO's demands, while essentially making Sougo a "kagemusha" of the true SOUGO. SOUGO transforms into Barlckxs and defeats Sougo, later confining him in prison.
An imprisoned Sougo angrily asks why Woz betrayed him, which he responded that his true loyalty always lied with SOUGO before leaving, saying he was proud to have called Sougo his "king" before he departs. Sougo then spoke to another inmate, Takeshi Kinashi, who tells Sougo to owe up to his destiny as the "chosen one". An enraged Geiz later arrives and fights Woz, attempting to convince him to return to them. This served as a distraction to allow Tsukuyomi and Go to release Sougo.
Sougo faces Barlckxs again, but he's easily defeated once more as Barlckxs claims that the power of the Heisei era can't affect him. In the middle of the city, SOUGO declares his true goal: through the Ridewatches in his possession, he'd unify the Heisei era, which was broken in unconnected and unfitting settings, rebuilding everything in a unified world view under his control. With the Dai Mazines activating, a singularity is created and everything from the Heisei era of the current world begins being absorbed into it. The first step before the birth of his new world, and even Sougo is pulled towards it.https://youtu.be/5-Z0NOfi6rk
However, after losing consciousness, Sougo wakes up in a strange dimension instead of perishing. Witnessing past memories of himself as a child, playing with his parents, Sougo watches as his younger self declares that he'll become a king in the future. In the end, these memories turn out to be little more than illusion, as Sougo suddenly appears in a deserted wasteland in 2068. Once there, he is greeted by Ohma Zi-O himself. The future demon king explains that SOUGO's claims are true, and Sougo was never born to be king. In spite of that, his dream leads Sougo to become Ohma Zi-O. Sougo chooses to embrace his dream, even if he wasn't born to do it.
Awakening back in the present, Sougo declares that he wants to be king to help the world, not to rule over it, when the Ohma Zi-O Ridewatch materializes in his hand. Sougo transforms into Zi-O OhmaForm as a gigantic projection of Ohma Zi-O appeared behind him. Witnessing this, Woz makes a grand speech about Zi-O OhmaForm being the advent of a new history that wasn't in his book. Finally, Zi-O landed in front of Zonjis and Zamonas.
Zi-O OhmaForm's arrival is followed by Go Shijima recovering his powers and all main Heisei Riders reappear to join the battle against the Quartzers. Riders also start materializing from alternative dimensions, such as games (The Goriders), theater posters (Kamen Rider Zangetsu Kachidoki) and even manga (Kuuga). They all help fight the army of Kasshines that appeared across the city. Witnessing Sougo’s quality as the one true king, Woz renounces his Quartzer membership in front of SOUGO, before he tears his Ohma Advent Calendar apart, stating that history is not set in stone, and that his allegiance belonged to the Heisei Riders.
With the destruction of his beloved book, the pages fly into space and alter the singularity's functions. The Dai-Mazines that appeared in space quickly lose their power source and fall like meteors to the ground, with all 19 previous Heisei Kamen Riders transforming into their final forms.
Just as Woz revels in the Heisei Riders victory, Barlckxs throws his Revolcane and fatally wounds Woz. Geiz then appeared to support Woz and declared for everyone to stand with their True King. Witnessing Zi-O OhmaForm gallantly battling with Barlckxs and succeeded in destroying the remaining Dai Mazines, Woz passed away. The Heisei Riders also successfully defeat Zonjis and Zamonas. Cornered, Barlckxs then uses Kamen Rider Black RX BioRider and J's Ridewatch to transform into a liquefied giant and attacking all Heisei Riders present. However, Sougo remains defiant. He, with all the main Heisei Riders, then use their combined Rider Kicks and penetrate Barlckxs last shield (a gigantic, liquefied board), dealing the finishing blow. In disbelief, Barlckxs shows the damaged board, now imprinted with Heisei in Kanji before exploding, killing the Leader of Quartzer for good.
With the defeat of Barlckxs, Geiz and Tsukuyomi disappeared because the future is now unknown. In spite of that, they're happy because it means they accomplished their mission. The other Quartzer reappear before Sougo Tokiwa, asking if he is fine with the world as it is, disjointed and lacking unity, and he replies that he is fine with it because life is like that. They tell him they're interested in seeing how his future will turn out.
When returning home, Geiz, Tsukuyomi and Woz are mysteriously restored, waiting for him.
===Post-Credit Scene===
Back in the scene of the battle, Kamen Rider Zonjis has recovered. He claims to be the one who will rule over the Reiwa era. However, the Rider from Sougo's dream, Kamen Rider Zero-One appears and announces he is the first Kamen Rider of the Reiwa era.
Zero-One fends off the Kasshines and defeats Zonjis using Flying Falcon, putting an end to his ambitions.
==Characters==
===Kamen Riders===
Kamen Rider Zi-O 	Sougo Tokiwa
Kamen Rider Geiz 	Geiz Myokoin
Kamen Rider Woz 	Woz
Kamen Rider Ohma Zi-O	Ohma Zi-O
====Legend Riders====
Kamen Rider Kuuga 	Yusuke Godai Yusuke Godai (2015 manga)
Kamen Rider Agito 	Shoichi Tsugami
Kamen Rider Ryuki 	Shinji Kido
Kamen Rider Faiz 	Takumi Inui
Kamen Rider Blade 	Kazuma Kenzaki
Kamen Rider Hibiki 	Hitoshi Hidaka
Kamen Rider Kabuto 	Soji Tendo
Kamen Rider Den-O 	Ryotaro Nogami/Momotaros
Kamen Rider Den-O Liner Form	Ryotaro Nogami
Kamen Rider Kiva 	Wataru Kurenai
Kamen Rider G 	Goro
Kamen Rider Decade 	Tsukasa Kadoya
Kamen Rider Double 	Philip & Shotaro Hidari
Kamen Rider OOO 	Eiji Hino
Kamen Rider Fourze 	Gentaro Kisaragi
Kamen Rider Wizard 	Haruto Soma
Kamen Rider Gaim 	Kouta Kazuraba
Kamen Rider Zangetsu 	Takatora Kureshima
Kamen Rider Drive 	Shinnosuke Tomari
Kamen Rider Mach 	Go Shijima
Kamen Rider Chaser 	Chase
Kamen Rider Brain 	Brain
Kamen Rider Ghost 	Takeru Tenkuji
Kamen Rider Ex-Aid 	Emu Hojo
Kamen Rider Build 	Sento Kiryu
*Kamen Sentai Gorider
Aka‑Rider 	Aka-Rider
Ao‑Rider 	Ao-Rider
Ki‑Rider 	Ki-Rider
Momo‑Rider	Momo-Rider
Mido‑Rider	Mido-Rider
===And Introducing Zero-One===
Kamen Rider Zero-One	Aruto Hiden
===Allies===
====9 5 DO====
*Tsukuyomi
*Junichiro Tokiwa
====Other====
Drive Driver	Krim Steinbelt
*Oda Nobunaga
*Gyuzo
*Clara Steinbelt
*Pietro
Kamen Norider	Takeshi Kinashi
===Villains===
====Quartzer====
Kamen Rider Barlckxs	SOUGO Tokiwa
Kamen Rider Zonjis 	Kagen
Kamen Rider Zamonas 	Jogen
*Kasshine
*Dai Mazine
====Other====
*Swartz (flashback)
Gold Drive	Tenjuro Banno (flashback)
==Cast==
===Main Cast===
*: 
*: 
*: 
*: 
*: 
*Ziku-Driver, Ridewatch, Ohma Zi-O Voices: 
*Ziku-Driver Voice: 
*Beyondriver Voice: 
===Guest Cast===
*: ISSA
*: 
*: 
*: 
*: 
*: 
*: 
*: 
*: 
*: Caleb Bryant
*Quartzer Member: DA PUMP (YORI, TOMO, KIMI, U-YEAH, KENZO, DAICHI)
*Sougo Tokiwa (Child): 
*: 
===Returning Cast===
*: 
*: 
===Suit Actorshttps://web.archive.org/web/20190723172737/http://www.japanactionenterprise.com/wp/?page_id=36===
*Kamen Rider Zi-O, Ohma Zi-O: 
*Kamen Rider Geiz: 
*Kamen Rider Woz: 
*Kamen Rider Mach: 
*Kamen Rider Zamonas: 
*Kamen Rider Zonjis: 
*Kamen Rider Barlckx: 
==Forms and Collectibles Used==
===Ridewatches===
*Watch used:
**Zi-O
***Zi-O, Zi-O Ridewatch II, GrandZi-O, Ohma Zi-O
**Geiz
***Geiz, GeizRevive
**Barlckxs
***Barlckxs, Biorider, J
**Zonjis
***Zonjis, Roborider
**Zamonas
***Zamonas
*Rider Armor(s) used:
**Zi-O
***Zi-O II, GrandZi-O, OhmaForm
**Geiz
***GeizRevive Shippu, GeizRevive Goretsu
*Kamen Rider(s) summoned in GrandZi-O:
**Double CycloneJoker, Den-O Sword Form, Drive Type Speed, Faiz, Gaim Orange Arms, Kuuga Mighty Form, Fourze Basestates, Ghost Ore Damashii, Wizard Flame Style, Hibiki
*Weapon(s) summoned in GrandZi-O/Zi-O OhmaForm:
**Saikyo Zikan Girade
OQ summoned Riders 1.png|Faiz, Den-O, Drive, Double and Gaim being summoned
OQ summoned Riders 2.png|Fourze, Ghost, Kuuga, Hibiki and Wizard being summoned
===Miridewatches===
*Watch used:
**Woz
***Woz, Shinobi, Ginga
*Futurering(s) used:
**Woz
***Futurering Shinobi, WozGingaWakusei
===Signal Bikes===
*Bike Used:
**Form Change: Signal Mach
**Signal Exchange: N/A
*Form Used:
**Mach
===Advent Cards===
*Cards used
**Ryuki:
***Sword Vent, Dragreder, Survive Rekka
*Weapons/Powers summoned:
**Ryuki:
***Dragsaber, Drag-Visor Zwei
*Form Used:
**Ryuki, Ryuki Survive
===Rouse Cards===
*Rouse Card Use:
**Change, Evolution
*Form used:
**Blade, King Form
===Fuestles===
*Fuestle Used:
** Doran Fuestle, Tatsulot Fuestle
*Kivats and Demon Arsenal used:
**Kivat-Bat the 3rd ,Tatsulot
*Forms Used:
**Kiva, Emperor
===Rider Cards===
*Card Used:
**Kamen Rider Decade:
***Kamen Ride: Decade
***Attack Ride: N/A
***Form Ride: N/A
***Final Form Ride: N/A
***Final Attack Ride: N/A
***Final Kamen Ride: Decade Complete
***K-Touch: N/A
**Forms:
***Complete Form
===Gaia Memories===
*Memory Used:
**Soul - Cyclone, Xtreme
**Body - Joker, Xtreme
*Half Changes:
**CycloneJoker, CycloneJokerXtreme
===O Medals===
*Medal Used:
**Head - Taka, Ptera
**Arms - Tora, Tricera
**Legs - Batta, Tyranno
*Combo Changes:
**Tatoba Combo, Putotyra Combo
===Astroswitches===
*Astroswitch Used:
**Circle - Rocket, Cosmic
**Cross - Launcher
**Triangle - Drill
**Square - Radar
*States Used:
**Basestates, Cosmicstates
===Wizard Rings===
*Wizard Ring Used:
**Flame, Dragorise, Infinity
*Style Changes:
**Flame Style, Infinity Style
===Lockseeds===
*Lock Used:
**Gaim
***Orange, Kachidoki, Kiwami
**Zangetsu
***Shin Kachidoki
*Arms Change:
**Gaim
***Orange Arms, Kiwami Arms
**Zangetsu
***Kachidoki Arms
*Weapons summoned in Kiwami Arms:
**Bana Spear, Hinawadaidai-DJ-Ju
===Shift Cars===
*Car Used:
**Drive
***Type Change: Shift Speed, Shift Tridoron
***Tire Exchange: N/A
**Type Used:
***Type Speed, Type Tridoron
*Tire Blending used in Type Tridoron:
**N/A
===Eyecons===
*Eyecon Used:
**Ore, Mugen
*Damashii Used:
**Ore Damashii, Mugen Damashii
===Rider Gashats===
*Gashat Used:
**Ex-Aid
***Mighty Action X, Maximum Mighty X, Hyper Muteki
*Level Used:
**Ex-Aid
***Action Gamer Level 2, Muteki Gamer
===Fullbottles===
* Bottle used:
**Biotic: Rabbit
**Abiotic: Tank
**Other: Genius
* Form(s) used:
** RabbitTank Form, Genius Form
===Progrisekeys===
*Key Used:
**Rising Hopper, Flying Falcon
*Form Used:
**Rising Hopper, Flying Falcon
===Other Form Changes===
*Kuuga: Mighty, Ultimate
*Agito: Ground, Shining
*Faiz: Faiz, Blaster Form
*Hibiki: Hibiki, Armed
*Kabuto: Rider Form, Hyper Form
*Den-O: Sword Form, Liner Form
==Theme song==
*P. A. R. T. Y. ~Universe Festival~, by DA PUMPhttps://twitter.com/DAPUMPJP/status/1139148512048734208
==Release==
==Errors==
*The sounds for each of Go's transformation into Mach were mistimed as the sounds appeared to be delayed.
**Similar delays in sound occur during the scene where the past Riders all transform into their final forms.
*When Jogen activates his Ridewatch, the Anotherwatch activation sound is played instead of the standard Ridewatch sound.
*After Go gave Sougo the Mach Ridewatch, the timeline changed and he lost his memories. However, he suddenly regains his memories back in the next scenes.
*When GrandZi-O fighting with Barlckxs, a "Kabuto" sound is played, however, there is no sign for Kabuto being summoned.
*Instead of inserting Rider Pass into DenKamen Sword, Den-O accessed Liner Form by dialing K-Taros first before attaching it to his belt, a method used for accessing Climax Form by Imagin. However, the K-Taros is used on his belt in Liner Form.
*When OOO transforms into Putotyra Combo, the scanning sound is heard twice.
==Behind the Scenes==
*In the film, Kamen Rider Zero-One is introduced to a large audience by Woz. This scene was filmed outside Hachimanzuka Tomb in Takasaki City, Gunma Prefecture, with over 1200 extras present. At the time of filming however, Zero-One had not been publicly revealed yet and Kikaider 01 was used as a stand-in, while still getting the scene to work as intended due to the similarities in both characters' names (Kikaider 01 and Zero-One). Zero-One's scenes were later filmed separately, replacing Kikaider 01 entirely, with Zero-One being digitally superimposed over the background of the audience in some scenes.
*Barlckxs was supposed to have a sword fight against Zi-O OhmaForm, however this was cut for unknown reasons.
==Notes==
*Ridewatch Count at movie end
**Watches in Zi-O's possession: Zi-O, OOO Tajadol Combo, Kodama, Zi-O II, Zi-OTrinity, Chalice, GrandZi-O, Mach, Ohma Zi-O, Phone, Bike
**Watches in Geiz's possession: Geiz, Cross-Z, Genm, Knight, GeizRevive, Phone, Bike
**Watches in Tsukuyomi's possession: Phone, Taka
**Watches in Woz’s possession: Woz, Shinobi, Quiz, Kikai, Ginga, Phone
**Watches in unknown possession: Barlckxs, Zonjis, Zamonas, Black RX, Roborider, Biorider, Shin, ZO, J, Amazon Omega, Amazon Alpha, Amazon Neo
*This is the first movie to be released in the Reiwa era.http://tokusatsunetwork.com/2019/03/japan-enters-the-reiwa-era-on-may-1st/
*As with Build's summer film, this movie is also named after its series' theme song, with the film's theme song being sung by the featuring artist of the show's theme song.
*Its three villainous Riders' names and designs take elements from and represent series that have aired in the Heisei Era, but do not fall under the Heisei series classification:
**Barlckxs - Kamen Rider Black RX: The first Kamen Rider television series broadcasting in the Heisei Era, starting with Episode 11. 
**Zonjis - Shin Kamen Rider: Prologue, Kamen Rider ZO, and Kamen Rider J: All 3 films were released in the Heisei Era but were counted as Showa Rider films due to the involvement of Shotaro Ishinomori.
**Zamonas - Kamen Rider Amazons: A net series based on re-imagination of a Showa Rider which premiered in the Heisei Era but not counted as a main installment of the Heisei Riders series.
***Coincidentally, all three Riders' names end with the same pronunciation: .
*It is the only Kamen Rider Zi-O movie to not feature any Another Rider.
*Some Kamen Riders (as well as Ankh's hand) can be seen in the background of the movie poster but they did not appear up in the actual movie: G3-X, Zolda, Orga, Caucasus, Ixa, Skull, Eternal, Birth, Meteor, Beast, Baron, Ryugen, 3, Dark Drive, Genm Zombie Gamer, Poppy, and Grease.
*Krim Steinbelt's ancestor living in the Sengoku period Japan is a reference to the fact his actor, Chris Peppler, is an actual descendant of , a Sengoku period warlord who betrayed and murdered .
**Coincidentally, Mitsuhide Nira is a character named after Akechi Mitsuhide, who is, in fact, a corrupt police officer aligned with the Roidmudes who set up Shinnosuke Tomari after he is revealed to be the culprit of his father's murder.
*In the first act, Go mentions that he fought "forces from the future" before, referring to the events of Kamen Rider Drive: Surprise Future.
*Kamen Rider Shinobi's transformation jingle could be heard in some of the Sengoku Period scenes.
*A new transformation sequence of GrandZi-O is featured in this movie, as the Legend Rider statue is larger, and appearing in the sky instead of from the ground.
*Kamen Rider 1's transformation sounds can be heard during Kamen Norider's conversation with Sougo.
*Kamen Rider Decade appears in his original Decadriver, instead of the NeoDecadriver version obtained in TV series. Producer Shinichiro Shirakura revealed that this version of Decade originates from 2009.https://twitter.com/cron204/status/1219280889378529280
**This isn't the first instance where Decade uses his original Decadriver again as shown in Kamen Rider Heisei Generations Forever, although the difference is that the latter film takes place before his appearance in Zi-O.
*This film marks the first on-screen appearance of:
**The licensed debut of Takeshi Kinashi/Kamen Norider in the Kamen Rider Series since the original parody show was discontinued after the production team received Toei's warning in 1991.
**Kamen Rider G after his one-off debut special Kamen Rider G.
**Yusuke Godai from the alternate continuity of the Kamen Rider Kuuga manga.
**Kamen Rider Zangetsu Kachidoki Arms since his appearance in the stage play, Kamen Rider Zangetsu Stage -Gaim Gaiden-.
* During SOUGO's demise, he holds a shield with the characters for , a reference to the of the era's name by now-former Japan chief cabinet secretary in 1989.
*How Sougo's acquisition of OhmaForm affected Tsukuyomi's existence is not revealed in the movie, as she belongs to a different timeline.
*The film is dedicated to Yoshinori Watanabe in the post-credit scenes, who passed away earlier in 2019.
==External Links==
*Official website
==References==
Category:Summer Movies
Category:Crossovers