Icon-zero-one.png This article is about a/an transformation device in Kamen Rider Zero-One.

"Thousandriver!"
―Activation announcement[src]

"Zetsumetsu Evolution!"
―Transformation standby announcement[1][src]

"Perfectrise! When the five horns cross, the golden soldier Thouser is born. Presented by ZAIA."
―Kamen Rider Thouser's Transformation announcement[1][src]

"Perfectrise! When the five weapons cross, the jet-black soldier Zaia is born. I am the President."
―Kamen Rider Zaia's Transformation Announcement[src]

"Thousand Destruction!"
―Kamen Rider Thouser's Finisher announcement[1][src]

"CEO Destruction!"
―Kamen Rider Zaia's Finisher announcement[src]

"Progrise! When the five horns cross, the golden soldier Thouser is born. Presented by ZAIA."
―Transformation announcement with only the Amazing Caucasus Progrisekey[1][src]

"Progrise! When the five weapons cross, the jet-black soldier Zaia is born. I am the President."
―Transformation announcement with only the Triceratops Zetsumerisekey[src]

"Thousand Break!"
―Finisher announcement with only the Amazing Caucusus Progrisekey[1][src]

"Breakrise! (Progrisekey animal)'s ability."
―Regular Progrisekey finisher announcement[1][src]

"Progrise! (Progrisekey animal)'s ability."
―Alternate regular Progrisekey finisher announcement[1][src]

"Progrise! (Progrisekey transformation sounds)"
―Transformation announcement with authorized standard Progrisekey[1][src]

"(Progrisekey prefix) Progrise!"
―Finisher announcement with authorized standard Progrisekey[1][src]

"Error! (alarm blares)"
―Announcement when an unauthorized Progrisekey is inserted without the Awaking Arsino Zetsumerisekey[src]

The Transformation Belt ZAIA Thousandriver (変身ベルト ザイアサウザンドライバー Henshin Beruto Zaia Sauzandoraibā), or simply the Thousandriver, is the transformation device used by Kamen Rider Thouser. It also serves as the transformation device of Kamen Rider Zaia. The Thousandriver was produced by ZAIA Japan using the data of eight Progrisekeys and eight Zetsumerisekeys, and served as the culmination to Project Thouser.

The original Thousandriver was eventually destroyed at the hands of Kamen Rider Ark-One. A second Thousandriver was later made for Gai as the head the Thouser Department. This Thousandriver was temporarily confiscated by Lyon Arkland so that he could use it to transform into Kamen Rider Zaia[2].

Design

The ZAIA Thousandriver consists of the following parts:

  • Rise Slot (ライズスロット Raizu Surotto) - The right-hand slot used to insert Progrisekeys into the Driver. Learning is performed when a Progrisekey is inserted and the Key's Rider Model (ライダモデル Raida Moderu) is sent to the Fusion Reactor. Pushing a key within the slot will activate Thouser's Thousand Destruction finishing attack. If an alternate Progrisekey aside from Amazing Caucasus is exchanged and inserted without removing the Awaking Arsino Zetsumerisekey, the user can perform the Progrise finisher.
  • Zetsumerise Slot (ゼツメライズスロット Zetsumeraizu Surotto) - The left-hand slot used to insert Zetsumerisekeys into the Driver. Learning is performed when a Zetsumerisekey is inserted and the Key's Lost Model (ロストモデル rosuto Moderu) is sent to the Fusion Reactor.
  • Thousand Equipper (サウザンドエクイッパー Sauzando Ekuippā) - The central golden circular section. it is an irradiation device unit that produces Thouser's Infrast Tecter bodysuit and other equipment during Perfect Rise (パーフェクトライズ Pāfekuto Raizu) via irradiation molding beams before being put on the wearer.
  • Gate Liberators (ゲートリベレーター Gēto Riberētā) - The two doors that open up during transformation. When closed, they cover the Thousand Equipper as a security mechanism. When a Progrisekey and a Zetsumerisekey has been inserted, it will open, activating the Fusion Reactor. Once opened, it acts as a reflector, improving the accuracy of the irradiation molding beams.
  • Fusion Reactor (フュージョンリアクター Fyūjon Riakutā) - The Driver's reactor located within the main body. By performing a fusion reaction with the Progrisekey's Rider Model and the Zetsumerisekey's Lost Model, Perfect Rise is initiated to convert the synergies between them into a form that maximizes each Model's abilities, forming Kamen Rider Thouser.

Functionality

The ZAIA Thousandriver uses the Amazing Caucasus Progrisekey in conjunction with the Awaking Arsino Zetsumerisekey to transform the user into Kamen Rider Thouser, or the Carnotaurus and Triceratops Zetsumerisekeys to transform into Kamen Rider Zaia.

Transformation

To transform, the user inserts either their respective reversed key into the left-hand slot of the driver. Then, the user activates the other key, opens it, and inserts it into the right-hand slot, causing the face of the driver to open and reveal a projection of Thouser/Zaia's face. The respective Rider Model or Lost Models then manifest from the Driver, and circle the user before their horns interlock (with the Caucasus Beetle's Amazing Trident horns emitting pink light, the Arsinotherium's Awaking Lancer horns emitting sky blue light or the Carnotaurus and Triceratops both emitting red light) and their bodies fuse with them after the Infrast Tector materializes. Finally, the five horns are attached to the faceplate, generating the Thousand Eye Visor and finishing the transformation. To cancel the transformation, the user simply needs to eject both keys altogether.

Finisher

Main article: Finisher (Zero-One)

Pushing the Amazing Caucasus Progrisekey again after transformation initiates the Thousand Destruction (サウザンドデストラクション Sauzando Desutorakushon). Doing the same with the Triceratops Zetsumerise Key initiates the CEO Destruction.

Users (chronological order)

User Kamen Rider Episode Obtained Description
Gai Amatsu
Kamen Rider Thouser
This is the Dawn of ZAIA Shortly after Metsuboujinrai.net was defeated for the first time, Gai made the ZAIA Thousandriver through unknown means. The driver was later destroyed by Ark-One. Another one was made after the events of the finale and was later taken by Lyon Arkland. A third belt was created between the V-Cinema below and Kamen Rider Genms -The Presidents-
Lyon Arkland
Kamen Rider Zaia
Zero-One Others: Kamen Rider MetsubouJinrai Lyon Arkland stole the belt from Gai Amatsu during the events of the V-Cinema. It was destroyed by Kamen Rider MetsubouJinrai.

Kamen Riders


Notes

  • The Thousandriver is the second transformation belt in Kamen Rider Zero-One, and by extension the entire Reiwa era, to use the term "Driver".
  • It is the first Driver in the Reiwa era to require two devices to transform.
  • Requiring the face of the Driver to open in order to complete the transformation makes it similar to the Beast Driver, though the methods of doing so are different due to the nature of their respective collectibles for their series.

Appearances

References

Icon-zero-one.png Kamen Rider Zero-One
Kamen Riders
Soreo Hiden - Aruto Hiden - Isamu Fuwa - Yua Yaiba - Jin - Horobi - Ikazuchi - Naki - Gai Amatsu - Ark - S
Movie-exclusive: Soreo Hiden - S - Behru - Kamen Rider Abaddon - Izu - Lyon Arkland - Kamen Rider MetsubouJinrai (Jin, Horobi, Ikazuchi & Naki)
Stageshow-exclusive: Azu - Little Assassin
Gear
Drivers
Hiden Zero-One Driver - A.I.M.S. Shotriser - MetsubouJinrai Forceriser - Zetsumeriser - ZAIA Thousandriver - Cycloneriser - Raidriser - ZAIA Slashriser - Ark Driver - Hiden Zero-Two Driver - Zetsumetsu Driver - Eden Driver - Abaddoriser - MetsubouJinrai Driver
Progrisekey-related
Progrisekeys - Progrise Holder - Progrisekey Connector - Hiden Risephone - Rider Models
Weapons
Attache Calibur - Attache Shotgun - Attache Arrow - Breaking Mammoth - Giger - Buaruku Sabers - Authorise Buster - Assault Grip - Thousand Jacker - Progrise Hopper Blade - ZAIA Spec - Knuckle Demolition - Nihon Ookaminotsume - Claw Assault - Horobi's Katana
Allies
Hiden Intelligence: Korenosuke Hiden - Soreo Hiden - Jun Fukuzoe - Sanzo Yamashita
Humagears: Izu - Shesta - Soreo Hiden - Wazu Nazotoku - Subaru - Hakase Bot - Fukkinhoukai Jiro
Legend Riders: Sougo Tokiwa - Geiz Myokoin - Woz - Tsukuyomi
Others:
Humans: Norio Uozumi - Go Sakurai - Satoshi Sakurai - Choichiro Ishizumi - Seiji Tazawa - Satō - Yuta Yomura - Isao - Shinya Owada - Ikkei Amatsu - Akane Tono
Humagears: Mageana - Ikkan Nigiro - Anna - Mashirochan - Dr. Omigoto - Z #5 - Delmo - Love-chan - Midori
A.I.s: Zea - Zat - Ai-chan - Thouser
MetsubouJinrai.net
Ark - Horobi - Naki - Jin - Ikazuchi - Little Assassin - Azu
Magia:
Monsters: Berotha Magia - Kuehne Magia - Ekal Magia - Neohi Magia - Onycho Magia - Vicarya Magia - Gaeru Magia - Mammoth Magia - Dodo Magia - Arsino Magia
Footsoldiers: Trilobite Magia - Dodo Magia Chick - Battle Magia
Other Villains:
Finis - Will
ZAIA Japan
Gai Amatsu - Williamson Yotagaki
ZAIA Spec Representatives: Rentaro Tachibana - Tatsumi Arayashiki - Naoto Ichimori - Takeshi Homura - Masamitsu Yuto
Other: Daiki Kyogoku - Makio Nodachi
A.I.M.S.: Isamu Fuwa - Yua Yaiba - Naki - Eida - Ono - Degawa - Shida - Eifuku - Ito
Monsters: Crushing Buffalo Raider - Splashing Whale Raider - Dynamaiting Lion Raider - Storming Penguin Raider - Scouting Panda Raider - Fighting Jackal Raider
Footsoldiers: Invading Horseshoe Crab Raiders
ZAIA Enterprise (U.S.A.)
Lyon Arkland - Sold9 - Sold20 - Sold404
Monsters: Dire Wolf Sold Magia - Serval Tiger Sold Magia - Crushing Buffalo Sold Magia - Splashing Whale Sold Magia - Storming Penguin Sold Magia - Scouting Panda Sold Magia - Invading Horseshoe Crab Sold Magia
Footsoldiers: Solds
Thinknet
S - Behru - Buga - Mua - Lugo
Footsoldiers: Kamen Rider Abaddon
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