Door-Ju

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The is a firearm weapon wielded by Kamen Rider Drive, resembling Tridoron's passenger-side door. It first appears in episode 8.
It can also be accessed by Kamen Rider Geats through the use of the Drive Driver Buckle. 
==Overview==
Like the Handle-Ken, Shinnosuke names this weapon for the car door attachment on the barrel's side, and Mr. Belt disapproves of his lackluster choice. When the Door-Ju is summoned, it comes from the front portion of Tridoron's hollow section.
A replica of the Door-Ju is also wielded by the Fake Drive, with this version shooting out water. 
In the future, when the Drive system becomes corrupted, the Door-Ju ended up in the possession of Eiji Tomari, Shinnosuke's son in the future, using it to defend himself against Future Roidmudes. 
In episode 42, the Door-Ju was stolen from Drive and used by Gold Drive during their first battle with each other.
== Design ==
The Door-Ju is composed of the following parts:
* : The car window-like translucent panel on the Door-Ju. It is a protective shield that uses extracted energy from the SO-1 alloy as the material it is made up of. It can reflect and alter enemy attacks.
* : The 'R' Drive logo on the door. It is a device that controls energy distribution, affecting the gun's performance.
* : The muzzle. A ring-shaped electromagnetic acceleration device is incorporated into it. It can fire energy bullets generated by the gun at high speeds.
* : The 'side mirror'. It is an aiming correction device. An enemy sensing unit is built onto the lightbar part, and can cooperate with Drive's search system to lock onto multiple enemies at once. Aditionally, it also controls energy output and improves the shooting precision. On the other side of the Aiming Side Mirror, an actual mirror is installed so Drive can see enemies behind him.
* : The most prominent feature of the Door-Ju, it is shaped like a car's door. It is made up of a substance called , and is further protected with a special coating, reducing damage during physical attacks. When the SO-Door Panel Shield is opened and closed, energy from the air is taken and turned into bullets. If the door is not closed, the gun will announce , reminding the user to close the door, lest the energy bullet generation will be disrupted.
* : The silver car door handle. It is used to open and close the SO-Door panel Shield. It is designed to keep the door shut and prevent accidental opening during battle.
* : The Shift Car recognition panel located on top of the Door-Ju. It reads the characteristics of the inserted Shift Car and applies them to attacks.
* : A sensor for transmitted data installed in the rear 'tail lights'. It can transmit optical signals to the Drive Driver to shift each system to a deadly attack attitude.
* : The grip of the Door-Ju. A device installed in the Frame Grip automatically adjusts angle of the muzzle and minimises shaking while optimizing shooting behaviour. Inside of the grip, laminated frames composed of compressed SO-1 alloy is charged, accumulating high amounts of compressed energy between each frame, allowing the Door-Ju to maintain a state in which it is possible to execute deathblows at any given time.
* : The trigger of the Door-Ju.
==Usage==
The Door-Ju can fire several shots before needing to be reloaded, which is easily accomplished by opening and closing the SO-Door Panel Shield (SO-ドアパネルシールド SO - Doa Gurasu Shīrudo) via the Handler Gear (ハンドラーギア Handorā Gia). The door can also emit a car-door like energy shield via the SO-Door Glass Shield (SO-ドアグラスシールド SO - Doa Gurasu Shīrudo).
If the door is open while being fired, the Door-Ju will give an error announcement of and misfire. Once reloaded, it will say . If the door is opened and closed multiple times while there is still ammo, the bullets will become much stronger. During his fight against the Open Roidmude, Drive's performance with the Door-Ju was disabled by the Roidmude constantly opening the weapon's door until it became jammed ajar.
In terms of Drive's main forms, Type Technic is the most compatible with the Door-Ju due to its near pin-perfect precision fitting with the long range combat nature of this weapon.
==Finishing attacks==
The Door-Ju's Full Throttle finisher is activated when Drive loads a Shift Car into its (in Gold Drive's case, either loading them into his Shift Brace or not) behind the barrel after turning his Drive Driver's Advanced Ignition.
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*Speed: Drive fires several flaming shots, then accelerates them by kicking an energy wheel that forms on the side into their path, slamming into their target at terminal velocity.
*Fire Braver: Drive fires a beam of energy resembling the Ladder Expander, which grabs the enemy and pins them to the nearest wall before he pulls the trigger to detonate the energy construct, taking out the target along with it.
*Rolling Gravity: Drive fires a ball of energy resembling the 10-ton Weight, which flies over directly above the enemy and pelts them with a series of bullets before the energy construct falls like a rock, detonating as it hits the target.
PerfecShot (Speed).jpg|Speed ver.
PerfecShot (Fire Braver).png|Fire Braver ver.
PerfecShot (Rolling Gravity).png|Rolling Gravity ver.
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*Using his own power, Gold Drive fires a ball of energy which flies over directly above the enemy. Then, he uses the Break Gunner to destroy it and turn into a hailing barrage of bullets.
Banno PerfecShot Step 1.png|PerfecShot w/ Door-Ju & Break Gunner (Step 1: Energy ball firing)
Banno PerfecShot Step 2.png|PerfecShot w/ Door-Ju & Break Gunner (Step 2: Break Gunner bullet shooting)
Banno PerfecShot Step 3.png|PerfecShot w/ Door-Ju & Break Gunner (Step 3: Energy ball destroying)
Banno PerfecShot Step 4.png|PerfecShot w/ Door-Ju & Break Gunner (Step 4: Explosion)
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==Known Users==
*Kamen Rider Drive
*Fake Drive
*Gold Drive
*Kamen Rider Ghost Drive Damashii
*Roidmude 004
*Rinna Sawagami
KRDr-Drivespeed.png|Kamen Rider Drive
KRDr-Fakedrive.png|Fake Drive
KRDr-Golddrive.png|Gold Drive(Gold Conversion)
KRGh-Ghostdrive.png|Kamen Rider Ghost Drive Damashii
KRDr-Roidmude 004.png|Roidmude 004
Rinna Sawagami wielding Door-Ju.png|Rinna Sawagami
==Legend Rider Weapon==
===Arms Weapon===
The Door-Ju is an Arms Weapon wielded by either an Armored Rider or a Genesis Armored Rider when they transform into Drive Arms. It is absent when Kamen Rider Gaim uses Drive Arms in Kamen Rider × Kamen Rider Drive & Gaim: Movie War Full Throttle, solely wielding the Handle-Ken. However, it is available alongside the Handle-Ken in the Arms Change series.
===Ghost===
The Door-Ju is the Legend Rider Weapon granted upon assuming Drive Damashii, which is used by Kamen Rider Ghost. In this form, it is paired with the Handle-Ken. 
==Ganbarider==
The Door-Ju is also among the various Rider Weapons used by Ganbarider in Kamen Rider Battle: Ganbarizing.
==Gallery==
==Notes==
*Shinnosuke originally imagined owning a when he heard of the new weapon's development. He didn't get it, but he was still satisfied all the same.
*The Door-Ju's recharging announcement is similar to the Smart Brain phones.
*Type Dead Heat and Type Formula are Drive's only in-series forms that he has not used the Door-Ju with, though both could be justified as the former's Shift Deadheat for its access is primarily utilized by Mach, while the latter is already paired up with the Trailer-Hou.
* Although early promotional pictures of Kamen Rider Drive: Surprise Future indicate that Drive would at some point wield the Door-Ju in Type Special, he did not do so in the movie itself, instead wielding it in Type Speed.
==Appearances==
* Kamen Rider Drive
**Episode 8: What is the Secret That Dwells in the Heart?
* Kamen Rider Ghost: Legendary! Riders' Souls! Drive Chapter
* Kamen Rider Heisei Generations: Dr. Pac-Man vs. Ex-Aid & Ghost with Legend Riders
* Kamen Rider Juuga VS Kamen Rider Orteca
==External links==
*TV Asahi's page on the Door-Ju.
*Kamen Rider Zukan page on the Door-Ju.
==Navigation==
Category:Rider Weapon
Category:Guns
Category:Arsenal (Drive)
Category:Arms Weapons