Nebulasteam Gun

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The is the transformation device and personal weapon of the Kaisers, as well as the personal weapon of Kamen Rider Rogue and Kamen Rider MadRogue. It combines with the Steam Blade to form the .
The Nebulasteam Gun is a creation of Kaisei Mogami, based on experiments mixing Nebula Gas with the Bugster Virus. It is the core of the . Takumi Katsuragi, who at the time was Mogami's supervisor, would later create a simplified and weaker version of the device called the Transteam Gun 159, page 39. Nariaki Utsumi would eventually update the Kaiser system for the use of Namba Heavy Industries Ltd.
==Design==
The Nebulasteam Gun is composed of the following parts: https://www.kamen-rider-official.com/zukan/items/28
*: The slot of the Nebulasteam Gun, it takes in a Fullbottle for transformation or an attack. It has a function which activates the Transgel Solid inside of the Fullbottle via a special pulse, allowing the Nebulasteam Gun to suck up the Fullbottle's essence.
*: The muzzle of the Nebulasteam Gun, it can shoot out bullets wrapped in hot steam called (On a side note, a Burette is a lab equipment used in chemistry to measure the volume of a liquid or gas. It consists of a glass tube with a stopcock at one end). Additionally, it also shoots out , which is used for transformation.
*: The golden panel on the Nebulasteam Gun with turquoise gears on it. It is a steam generation unit which is directly mounted onto the gun. It heats up the inserted Fullbottle/Gear Bottle's Transgel Solid (essence) and turns it into Transgel Steam, allowing transformation. In addition, Nebula Gas is also stored inside of its inner tank.
*: The trigger used to transform or shoot. Pulling the trigger activates the Nebulasteam Gun's internal units to allow transformation, shooting or special deathblows.
*: The hilt of the Nebulasteam Gun. Because it is composed of materials that can withstand impacts, it can be used as an impromptu striking weapon. Additionally, a computer unit inside it uses combat data to figure out the user's combat style and adjusts shooting behavior accordingly.
==Users (chronological order)==
User 	Kamen Rider/Kaiser 	Episode Obtained 	Description
Kaisei Mogami 	Kaiser 	Kamen Rider Heisei Generations Final: Build & Ex-Aid with Legend Riders 	Creator of the original Nebulasteam Gun. It was destroyed alongside its user by Kamen Rider Ex-Aid and Kamen Rider Build.
Kaisei Mogami (World of Ex-Aid)	Kaiser Reverse 	Kamen Rider Heisei Generations Final: Build & Ex-Aid with Legend Riders 	Presumably given a Nebulasteam Gun by his World of Build counterpart. It was destroyed alongside its user by Kamen Rider Ex-Aid and Kamen Rider Build.
Nariaki Utsumi 	Hell Bro's/Kamen Rider MadRogue	Kamen Rider Build: Raising the Hazard Level ~7 Best Matches~: Next Chapter 	
Using Kaisei Mogami's research, Utsumi created his own Nebulasteam Gun and began revising the Kaiser system. After recovering the Nebulasteam Gun from Nebula Hell Bro's, Utsumi completed his new Kaiser system and tested it, transforming into Hell Bro's. This Nebulasteam Gun would later be given to the Clone Hell Bro's before being returned to Utsumi. Utsumi would later use his Nebulasteam Gun as his personal weapon after becoming Kamen Rider MadRogue.
Unnamed man 	Nebula Hell Bro's 	Kamen Rider Build: Raising the Hazard Level ~7 Best Matches~: First Chapter	This unnamed test subject was given the Nebulasteam Gun after being transformed into Nebula Hell Bro's, an incomplete form of the Kaiser system
After being defeated and his transformation cancelled, Sento took him to safety, leaving the Nebulasteam Gun on the ground. Nariaki Utsumi recovered it and used the data to complete the Kaiser System.
Fu Washio 	Remocon Bro's/Hell Bro's 	The Phantom of the West 	Shared with his brother as his transformation device and personal weapon in both Remocon Bro's and Hell Bro's forms.
Rai Washio 	Engine Bro's 	The Phantom of the West 	Shared with his brother as his transformation device and personal weapon. The gun later disintegrated alongside its user by Evolto.
Gentoku Himuro 	Kamen Rider Rogue 	ROGUE 	After becoming a Kamen Rider of Seito/Namba Heavy Industries Ltd., Gentoku uses a Nebulasteam Gun as his personal weapon after his Transteam Gun was taken.
Clone Hell Bro's 	Clone Hell Bro's 	Kamen Rider Build: Raising the Hazard Level ~7 Best Matches~: Final Chapter	A Nebulasteam Gun was given to this clone of Hell Bro's so Utsumi could collect data on its fight with Build.
Evolto/Ryuga Banjo 	Kamen Rider Evol 	Tower of Destruction 	Borrowed briefly from Gentoku Himuro to use it against him and Kazumi Sawatari.
Kazumi Sawatari 	Kamen Rider Grease 	The Unstoppable Genius 	Borrowed briefly from Gentoku to allow him, Ryuga Banjo, and Takumi Katsuragi to escape from Evolto and MadRogue.
==Functionality==
===Transformation===
The Fullbottle-like Gears are loaded into the Nebulasteam Gun and the trigger is pulled to transform into a Kaiser(similar to loading a magazine). To transform into the Hell Bro's, the Gear Engine or Gear Remocon is inserted before being removed to insert the other and pull the trigger. The transformation commands for Mogami's Kaiser System are and . The transformation command for Utsumi's Kaiser System is .
==Finishers==
The Nebulasteam Gun has four finishers: with any Gear as a Kaiser, with any Gear as Hell Bro's, with the Crocodile Crack Fullbottle, and with any other Fullbottle.
While in Rifle Mode, its finisher is the .
==Behind the Scenes==
===Portrayal===
The Nebulasteam Gun is voiced by KORBY, who also voiced the Build Driver.
==Notes==
*The part of the Nebulasteam Gun's full name is formed by combining the pronunciations of 駆(Ku) and 鱗(Uroko). 
**It also a pun on the word Crocodile, referencing the weapon's user, Kamen Rider Rogue.
*Nebulasteam Gun will announce "Lost Match" upon utilizing certain Fullbottles, likely to communicate that these Fullbottles have no Best Matches for them.
**Most of these Fullbottles are later revealed to be connected to the Lost Fullbottles under Evolto's possession.
*Due to sharing its pin combination, the Engine Fullbottle will be read as the Gear Engine if inserted on the DX Nebulasteam Gun..
*The two Gears form Best Matches with the two Fullbottles used by Gentoku Himuro, Bat and Crocodile.
*Unlike the Transteam Gun which has both full-size & smaller prop in the show, Nebulasteam Gun only has full-size one. DX version, however, is still smaller like DX Transteam Gun.
==Appearances==
==See also==
*Transteam Gun
*Nebula Gas
*Bugster Virus
==References==
==External links==
*Kamen Rider Zukan page on the Nebulasteam Gun.
==Navigation==
Category:Arsenal (Build)
Category:Transformation Gear
Category:Guns
Category:Villain Weapons