Ark Driver

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The is the transformation device used to transform into either Kamen Rider Ark-Zero, Kamen Rider Ark-One, or Kamen Rider Thousand Ark.
==Design==
In both forms, the Ark Driver is composed of the following parts:
* - The source of the Satellite Ark. By analyzing a huge amount of learned data in real time, the user can draw hundreds of millions of "conclusions for events". Also stored are the fluid metals that make up the various equipment.
* - The auxiliary arithmetic unit with the Ark Driver-Zero. It is a device to support the operation of artificial intelligence Ark. It performs a multi-process that executes a huge number of tasks while switching them in parallel by linking with a network. This has the role of improving performance, such as shortening the Ark's processing time and improving work efficiency.
* - The Anti-annihilation furnace reactor built in the Ark Driver-Zero. By cancelling the Rider Model with the Lost Model, pair annihilation becomes zero, and only the energy of both is extracted with high purity. As a result, it is possible to obtain energy that is equivalent to that of eight Giger units, although it is ultra-compact.
* - A device located to the Driver's top. Pressing it down initiates the "Arkrise", the transformation process where it generates the fluid metal stored inside that covers the Humagear host and form the Ark-Zero Suit. When initiating a boosted deathblow (by pressing down the Ark Loader again), the Ark Loader initiates a Rider Finisher. For the Ark Driver-One, depending on the number of times the user push it, the user can select up to 10 learning levels: , , , , , , , , and . With this, the output of the special move "Perfect Conclusion" is adjusted.
* - A slot intended to insert the Ark-One Progrisekey into. By loading a Progrisekey, it connects the device into an internal , a device that allows the Driver to read and learn the Progrisekey's abilities.
* - The anti-annihilation furnace reactor built in the Ark Driver-One. A device that performs pair annihilation to zero by canceling the Rider Model with the Lost Model and performs "Singurize" to reach a new technological singularity by using human malice in the process of extracting only both energy with high purity. As a result, it is possible to generate a huge amount of energy while maintaining a very small size.
* - The pure white exterior on the Ark Driver-One. As a vessel that protects the Ark, which has become a concept, it rejects all shocks.
* - The belt strap. When the body is set on the lower abdomen of the wearer, the inner band is instantly wrapped around and fixed.
==Functionality==
The Ark Driver was created as a took for Ark to possess a Humagear to transform into Ark-Zero. As such, he cannot posses a human to transform into his Rider form. After Ark’s destruction, Azu took the driver, and learned that when a human has enough malice in them, they can use the driver, as Aruto used it to transform into Ark-One, but the transformation caused pain, due to the driver being more for Humagears than humans. Thousand Ark’s case is similar to Ark-One, but he doesn’t succumb to malice and retains his independence.
For Saigetsu, because of Hundreds ability to copy Rider Powers, he can become Ark-Zero without any hindrance to him. He can also transform into Ark-One directly from Ark-Zero. 
===Transformation===
For Ark-Zero, the user that has been possessed by the Ark simply presses the Ark Loader on top of the Driver. Red & black kanji with negative meanings and six spiked stars emerge from the center then dissolve into liquid metal, which form Rider Models of various wallowing husks. The kanji and the liquid metal then create a suit-shaped Rider Model, which fuses with the user to reveal Ark-Zero.
For Ark-One, the transformation format is similar to that of Zero-Two. The user just needs to activate the Ark-One Progrisekey and insert it into the Singurize Slot of Ark Driver-Zero without authorizing, converting it into the Ark Driver-One. Glitching red and black kanji and malicious energy along with a projection of the Ark appears. These projections then covers the user & forms white armor around the user, revealing Ark-One.
For Thousand Ark, the transformation format is similar to Ark-One but the effect is different. The user feels pain at first and paralyzed by the red electricity, while glitching red and black kanji and malicious energy spreads out from the Ark Driver. These Kanjis then covers the user, then dissolve into liquid metal, forming the black and white armor, after a blue energy ring releases from the user, completing the process of transformation into Thousand Ark.
===Finisher ===
For Ark-Zero, the user that has been possessed by the Ark simply presses the Ark Loader on top to execute the .
For Ark-One, the user presses on the inserted Progrisekey to execute the . Pressing the Ark Loader on top up to nine times before pressing on the inserted Progrisekey empowers the Perfect Conclusion with up to nine malicious meanings (Malice, Fear, Wrath, Hatred, Despair, Strife, Bloodthirst, Ruin and Extinction) to become the . Pressing the button on top the tenth time empowers the Perfect Conclusion with the final malicious meaning (Downfall), in addition to the previous nine malicious meanings, to become the .
==Users (chronological order)==
User 	Kamen Rider 	Episode Obtained 	Description
Ark(Horobi ►◄ Jin ►◄ Ikazuchi)	Kamen Rider Ark-Zero 	I Am the Ark and a Kamen Rider 	The Ark Driver-Zero was originally an alternate form of the Ark's physical, liquid metal state. The Driver can also be transferred between Humagear hosts, as seen when the Ark left Jin's body to attempt to possess Isamu Fuwa before returning to Horobi. After being defeated a final time by Zero-Two and Horobi, the Ark returned its consciousness to There, where it was destroyed along with the satellite by Uchuyaro Raiden.
Aruto Hiden 	Kamen Rider Ark-One 	As Long as There Is Malice 	After Horobi murders Is, a heartbroken Aruto becomes filled with grief. Taking advantage of Aruto's shattered mentality, As offers Aruto the Ark-One Progrisekey, which he accepts along with the Ark Driver to take revenge on Horobi. Aruto later allowed both the Ark Driver and the Progrisekey to be destroyed by Horobi Ark Scorpion.
Gai Amatsu 	Kamen Rider Thousand Ark 	Kamen Rider Genms -Smart Brain and the 1000% Crisis-	Gai obtains a third Ark Driver from the Ark and uses it to battle against Kamen Rider Genm Musou Gamer.
Saigetsu 	Kamen Rider Ark-ZeroKamen Rider Ark-One	Only One! All Roads Lead to Gorgeousness 	After Saigetsu is defeated by Kamen Rider Legendary Legend, the Hundred Superiors gave Saigetsu the Ark Driver and Ark-One Progrisekey, which he accepts and uses to take revenge on Ho-Oh Kaguya Quartz. After being defeated by Legend and Gotchard, Gigist used his alchemy powers to resurrect Saigetsu, who regained his transformation ability as Ark-One.
Later both the Ark Driver and the Progrisekey were destroyed by Kamen Rider Legendary Legend and Kamen Rider Platina Gotchard while destroying the Dooms Clock.
==Kamen Riders==
* Ark Driver-Zero
**Kamen Rider Ark-Zero
*Ark Driver-One
**Kamen Rider Ark-One
**Kamen Rider Thousand Ark
**Ark-One Malgam
KR01-Ark-Zero.png|Kamen Rider Ark-Zero
KROu-Ark-Zero.png|Kamen Rider Ark-Zero (Outsiders/Gotchard version)
KR01-Ark-One.png|Kamen Rider Ark-One
KRGo-Ark-One.png|Kamen Rider Ark-One (Gotchard version)
KR01-Thousandark.png|Kamen Rider Thousand Ark
KRGo-Ark-One Malgam.png|Ark-One Malgam
==Behind the Scenes==
=== Portrayal===
The Ark Driver and Ark-One Progrisekey are voiced by , who also voices Ark in-series.
==Notes==
*One of the screams from Ark-Zero's transformation announcement is reused from the Steam Blade's Devil Steam attack and the Crocodile Crack Fullbottle.
*The Ark Driver-Zero is the first transformation device in Kamen Rider Zero-One that can access a form without a Progrisekey.
* The Ark Driver's design is similar to the Hiden Zero-One Driver, which fits it being an evil counterpart of said belt.
*In Ganbarizing, Ark-Zero is transformed by simply equipping the Ark Driver, without pressing the Ark Loader. This is also the case for his finisher.
*The finisher used by Ark-One in Ganbarizing () is a combination of the finishers of both Ark-Zero and Ark-One.
*The Ark Driver is the first Driver in the series to change into two distinct designs used to access different forms.
==Appearances==
==Navigation==
Category:Transformation Gear
Category:Arsenal (Zero-One)
Category:Arsenal (Outsiders)