Nebulasteam Gun

This article is about a weapon/transformation device in Kamen Rider Build.

Nebulasteam Gun
Item Information
Type	Transformation Device Gun
Compatible Items	Gears Steam Blade
User(s)	Kaisers Kamen Rider Rogue Kamen Rider MadRogue Kamen Rider Grease
Series	Kamen Rider Build
First Appearance	Kamen Rider Heisei Generations Final: Build & Ex-Aid with Legend Riders
Latest Appearance	Build NEW WORLD: Kamen Rider Cross-Z Full list of appearances

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"(Gear name)!"

―Gear insertion announcement^[src]

"Funky! Remote control gear! (ファンキー！リモートコントロールギア！, Fankī! Rimōto kontorōru gia!)"

―Remocon Bro's/Kaiser transformation announcement^[src]

"Funky! Engine running gear! (ファンキー！エンジンランニングギア！, Fankī! Enjin ranningu gia!)"

―Engine Bro's/Kaiser Reverse transformation announcement^[src]

"Funky Drive! (Gear name)! (ファンキードライブ！◯◯！, Fankī Doraibu! (Gear name)!)"

―Standard finisher announcement^[src]

"Funky Match! (ファンキーマッチ！, Fankī Matchi!)"

―Announcement after inserting both Gears^[src]

"Fever! Perfect! (フィーバー！パーフェクト！, Fībā! Pāfekuto!)"

―Hell Bro's/Bi-Kaiser transformation announcement^[src]

"Funky Finish! (ファンキーフィニッシュ, Fankī Finisshu!)"

―Hell Bro's finisher announcement^[src]

"Crocodile! (クロコダイル！, Kurokodairu!)"

―Crocodile Crack Fullbottle insertion announcement^[src]

"Funky Break! Crocodile! (ファンキーブレイク！クロコダイル！, Fankī Bureiku! Kurokodairu!)"

―Finisher announcement with the Crocodile Crack Fullbottle^[src]

"Lost Match! (ロストマッチ！, Rosuto Matchi!)"

―Insertion announcement for Lost Fullbottles (except Bat)^[src]

"Funky Attack! Lost Match! (ファンキーアタック！ロストマッチ！, Fankī Atakku! Rosuto Matchi!)"

―Finisher announcement with Lost Fullbottle^[src]

"Fullbottle! (フルボトル！, Furubotoru!)"

―Insertion announcement for any other Fullbottle^[src]

"Funky Attack! Fullbottle! (ファンキーアタック！フルボトル！, Fankī Atakku! Rosuto Matchi! Furubotoru!)"

―Finisher announcement with any other Fullbottle^[src]

"Rifle Mode! Funky! (ライフルモード！ファンキー！, Raifuru Mōdo! Fankī!)"

―Steam Blade combination announcement^[src]

"Funky Shot! (Gear name/Crocodile/Lost Match/Fullbottle)! (ファンキーショット！◯◯！, Fankī Shotto!)"

―Rifle Mode finisher announcement^[src]

The Driving Scale Smoke Pistol Nebulasteam Gun (駆鱗煙銃 ネビュラスチームガン, Kuroko Enjū Nebyura Suchīmu Gan) is the transformation device and personal weapon of the Kaisers. It also serves as the weapon of Kamen Rider Rogue and Kamen Rider MadRogue.

Overview

The Nebulasteam Gun is the core of Kaiser System (カイザーシステム, Kaizā Shisutemu), developed as a biological weapon by Kaisei Mogami while working at Namba Heavy Industries Ltd.. It combines Nebula Gas with the Bugster Virus that Kaisei had discovered. Takumi Katsuragi, who was Mogami's assistant at the time, creates the Transteam Gun as a simplied version of the Nebulasteam Gun that did not incorporate the Bugster Virus.. Nariaki Utsumi would eventually create his own version of the Kaiser System.

Components

The Nebulasteam Gun is composed of the following parts:

• Gear Bottle Slot (ギアボトルスロット, Gia Botoru Surotto): The slot used when transforming or activating a finishing move. It activates the ingredients inside the loaded Gear or Fullbottle with a special pulse and absorbs them into the Nebulasteam Gun.
• Mystic Charger (ミスティックチャージャー, Misutikku Chājā): A steam generating unit installed in the Nebulasteam Gun. It heats the ingredients used as the material suits and armor, transforming it into a special steam called Transgel Steam (トランジェルスチーム, Toranjeru Suchīmu). An internal tank also stores Nebula Gas.
• Blazing Steamer (ブレイジングスチーマー, Bureijingu Suchīmā): The muzzle of the Nebulasteam Gun. It can fire heat-hardened bullets wrapped in steam called Steam Burettes (スチームビュレット, Suchīmu Byuretto). It is also responsible for transforming the ejected Transgel Steam into armaments with a special pulse and equipping them to the user.
• Funky Trigger (ファンキートリガー, Fankī Torigā): The trigger used during transformation and shooting attacks. After Gear Remocon or Gear Engine into the Full Bottle slot, pulling the trigger will activate each unit, allowing transformation and finishing moves to be performed.
• Power Hit Grip (パワーヒットグリップ, Pawā Hitto Gurippu): The grip of the Nebulasteam Gun. It is made of sturdy parts with excellent impact resistance and can be used for striking attacks. It also learns the user's fighting style and optimizes behavior when firing.

Functionality

Transformation

To transform into a Kaiser, the user loads a Gear into the Nebulasteam Gun and pulls the trigger. Transgel Steam is fired from the Nebulasteam Gun and engulfs the user and forms the suit as gears appear in the air. The gears attach to the suit, completing the transformation.

Kaisei Mogami and his counterpart say "Kaiser" (カイザー, Kaizā) before transforming. To fuse into Bikaiser, they simply transform at the same time after saying "Bikaiser" (バイカイザー, Baikaizā).

Remocon Bro's and Engine Bro's instead say "Jundou" (潤動, Jundō, transl. "Lubricate") before transforming. In order to transform into Hell Bro's, the user inserts both Gears consecutively before pulling the trigger. The transformation call is the same in this case.

Finishers

The Nebulasteam Gun's standard finisher is the Funky Drive (ファンキードライブ, Fankī Doraibu). This finisher for Bikaiser/Hell Bro's is the Funky Finish (ファンキーフィニッシュ, Fankī Finisshu). Using the Crocodile Crack Fullbottle will activate the Funky Break (ファンキーブレイク, Fankī Bureiku), while any other Fullbottle activates a Funky Attack (ファンキーアタック, Fankī Atakku).

The Nebulasteam Gun can be combined with the Steam Blade to access its Rifle Mode (ライフルモード, Raifuru Mōdo), the finisher of which is the Funky Shot (ファンキーショット, Fankī Shotto).

• Funky Drive
• Funky Break
• Funky Attack
• Funky Shot

• Kaisers
• Bro's

• Gear Engine: Kaiser Reverse fires a large blast of red energy surrounded by several energy gears, then performs a roundhouse kick that leaves behind a trail of red energy.
• Gear Remocon: Kaiser fires a blast of blue energy surrounded by several energy gears at the enemy.

Funky Drive (Gear Engine) (Kaiser Reverse) (Part 1: Charged Shot)

Funky Drive (Gear Engine) (Kaiser Reverse) (Part 2: Roundhouse Kick)

Funky Drive (Gear Remocon) (Kaiser)

• Gear Remocon: This finisher has two variations:
  • Remocon Bro's produces a large cyan energy gear from his hand, which fires fires a smaller cyan energy gear at the enemy. This attack can be combined with a silver gear-like energy slash from the Steam Blade of Engine Bro's.
  • Clone Hell Bro's disappears before reappearing behind the enemy and firing cyan and white energy gears.

Funky Drive (Gear Remocon) (Remocon Bro's) (Step 1: Cyan energy gear creation)

Funky Drive (Gear Remocon) (Remocon Bro's) (Step 2: Gear enlarging)

Funky Drive (Gear Remocon) (Remocon Bro's) (Step 3: Firing secondary energy gear)

Funky Drive (Gear Remocon) (Remocon Bro's) (Step 4: Striking enemy)

Funky Drive (Gear Remocon) (Remocon Bro's) (Step 5: Explosion)

Funky Drive (Gear Remocon)

Funky Drive (Gear Remocon) (Hell Bro's) (Step 1: Disappearing)

Funky Drive (Gear Remocon) (Hell Bro's) (Step 2: Reappearing)

Funky Drive (Gear Remocon) (Hell Bro's) (Step 3: Energy gears)

Funky Drive (Gear Remocon) (Hell Bro's) (Step 4: Impact)

Funky Break (ファンキーブレイク, Fankī Bureiku): Rogue charges the Nebulasteam Gun with purple electricity while purple energy constructs of broken debris surrounds it and converges in front of the barrel. He fires a construct of Cruncher Fang in a purple explosion, with the Cruncher Fang ramming the enemy into the environment.

Funky Break (Step 1: Charging)

Funky Break (Step 2: Debris constructs converging)

Funky Break (Step 3: Firing)

Funky Break

• Biotic Fullbottle
• Lost Fullbottle

• Phoenix: Rogue transforms into a phoenix made of fire, giving him temporary flight abilities. He can also bring other people with him.

Funky Attack (Phoenix)

• Cobra Fullbottle: Clone Hell Bro's fires an energy construct of cobra followed by cyan, white, and blue energy gears. The cobra first attacks the enemy by itself before it and the gears attack together.

Funky Attack (Cobra) (Step 1: Charging)

Funky Attack (Cobra) (Step 2: Cobra construct)

Funky Attack (Cobra) (Step 3: Cobra construct attacking enemy)

Funky Attack (Cobra) (Step 4: Energy gears)

Funky Attack (Cobra) (Step 5: Gears and cobra attacking)

• Gears
• Crocodile Crack
• Lost Fullbottle
• Biotic Fullbottle

• Gear Engine: Engine Bro's fires a silver engine-like energy drill orange energy construct surrounded by orange energy and swirling blue energy.
  • Elek Steam: A ball blue and orange energy in front of the Nebulasteam Rifle's barrel before forming a silver engine-like energy drill that Remocon Bro's fires at the enemy.

Funky Shot (Gear Engine) (Step 1: Forming engine-like projectile)

Funky Shot (Gear Engine) (Step 2: Firing)

Funky Shot (Gear Engine) (Step 3: Impact)

Funky Shot (Gear Engine) (Step 4: Explosion)

Funky Shot (Gear Engine) (Elek Steam) (Step 1: Blue and orange energy ball)

Funky Shot (Gear Engine) (Elek Steam) (Step 2: Engine-like projectile)

Funky Shot (Gear Engine) (Elek Steam) (Step 3: Firing)

Funky Shot (Gear Engine) (Elek Steam) (Step 4: Impact)

Funky Shot (Gear Engine) (Elek Steam) (Step 5: Explosion)

Funky Shot (Gear Engine) (Elek Steam)

• Crocodile Crack: Rogue fires a purple energy construct of the Cruncher Fang that bites down on multiple enemies.

Funky Shot (Crocodile Crack) (Step 1: Cruncher Fang construct)

Funky Shot (Crocodile Crack) (Step 2: Biting enemies)

Funky Shot (Crocodile Crack) (Step 3: Explosion)

Funky Shot (Crocodile Crack)

• Bat: Remocon Bro's fires a blast of purple and yellow energy that leaves behind purple sonar-like waves.

Funky Shot (Bat) (Step 1: Charging)

Funky Shot (Bat) (Step 2: Firing)

Funky Shot (Bat) (Step 3: Energy blast approaching target)

Funky Shot (Bat) (Step 4: Impact)

• Phoenix: Rogue fires a blast of fire at the enemy.

Funky Shot (Phoenix)

Users (chronological order)

User	Kamen Rider/Kaiser	Episode Obtained	Description
Kaisei Mogami (World of Build)	Kaiser	Kamen Rider Heisei Generations Final: Build & Ex-Aid with Legend Riders (Pre-series)	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 (Pre-series)	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 (presumably)	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 (presumably)	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.
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.

Gallery

Users

• Nebulasteam Gun
• Nebulasteam Rifle

• Kaiser
• Kaiser Reverse
  • Bikaiser
• Engine Bro's (Transformation only)
• Remocon Bro's
• Hell Bro's
• Kamen Rider Rogue
• Nebula Hell Bro's
• Kamen Rider Evol
  • Cobra Form
• Kamen Rider MadRogue
• Kamen Rider Grease

Kaiser

Kaiser Reverse

Bikaiser

Remocon Bro's

Hell Bro's

Kamen Rider Rogue

Nebula Hell Bro's

Kamen Rider Evol

Kamen Rider MadRogue
(alongside Steam Blade)

Kamen Rider MadRogue
(alongside Transteam Gun)

Kamen Rider Grease

• Remocon Bro's
• Kamen Rider MadRogue
• Kamen Rider Prime Rogue

Remocon Bro's

Kamen Rider MadRogue

Kamen Rider Prime Rogue

Behind the Scenes

Portrayal

The Nebulasteam Gun is voiced by KORBY, who also voiced the Build Driver.

Notes

• The Kuroko (駆鱗, Kuroko) part of the Nebulasteam Gun's full name is formed by combining the pronunciations of 駆 (Ku, 駆) and 鱗 (Uroko, 鱗).
  • 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

• Kamen Rider Build
  • Kamen Rider Heisei Generations Final: Build & Ex-Aid with Legend Riders
  • Kamen Rider Build: Raising the Hazard Level ~7 Best Matches~
    • Next Chapter
    • Final Chapter
  • Episode 23: The Phantom of the West
  • Episode 24: A Man Called Rogue
  • Episode 25: The Idol Awakens
  • Episode 26: The Treacherous Deathmatch
  • Episode 27: The Counterattack Hero
  • Episode 29: The Opening Bell Rings
  • Episode 30: The Truth of the Pandora Box
  • Episode 31: Surging Magma!
  • Episode 32: Programmed Tragedy
  • Episode 33: The Final Weapon: Evol
  • Episode 35: Tower of Destruction
  • Episode 37: The Ultimate Phase
  • Episode 38: Mad World
  • Episode 39: The Unstoppable Genius
  • Episode 40: The Final Revolution
  • Episode 42: Legacy of Doubt
  • Episode 44: The End of Evolto
  • Episode 45: The Scientist of Hope
  • Episode 47: Zero Degree Flames
  • Kamen Rider Build: Final Stage
  • Build NEW WORLD: Kamen Rider Cross-Z

See also

• Transteam Gun
• Nebula Gas
• Bugster Virus

External links

• Kamen Rider Zukan page on the Nebulasteam Gun.