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Icon-buildThis article is about a source of power in Kamen Rider Build.
Nebula Gas

Nebula Gas released from the Sky Wall

The Nebula Gas (ネビュラガス, Nebyura Gasu) is a type of gas released from cracks in the Sky Wall.

Properties[]

Faust is able to change people into Smash by injecting a concentrated formula of the Gas in liquid form into a test subject, exposing them to large amounts of it in gas form, or creating Smash Bottles for their agents to voluntarily use. After the contaminant elements in the gas are purified by Misora Isurugi, the gas becomes a vital component of the creation of Build's Rider System and Fullbottles.[Moonsault of Anger] It is later learned that the gas can be further condensed into a gel for the creation of Sclashjellies.[Judging Sento Kiryu!]

Nebula Gas can cause the Bugster Virus to mutate into the Nebula Bugster. However, more refined samples of the Bugster virus, such as the data in the Gamer Drivers and Gashats or matured Bugsters like Parado, react negatively to Nebula Gas exposure. The Nebula Bugsters serve as the fuel for Kaisei Mogami’s inventions, namely the Enigma and the Kaiser system with its Nebulasteam Gun.[Kamen Rider Heisei Generations Final: Build & Ex-Aid with Legend Riders] Nebula Gas on its own is a powerful fuel source, as Takumi Katsuragi designed the derivative Transteam Gun to run off of it.

Nebula Gas can be neutralized by Build Genius Form.

Because Nebula Gas is a byproduct of the Sky Wall, it contains compounds not found on Earth.

When Killbus arrived in the new world and reactivated the Pandora Box by using Ryuga Banjo as a catalyst on the white Pandora Panel, those who were experimented on with Nebula Gas in the original world had their former memories restored.[Build NEW WORLD: Kamen Rider Cross-Z]

Nebula Gas Gel[]

A compressed form of Nebula Gas used in Sclashjellies. Due to it being more potent, it required a certain Hazard Level to be used, and only activates by resonating on a random purified Fullbottle.

Phantom Liquid[]

Phantom Liquid (ファントムリキッド, Fantomu Rikiddo) is a condensed form of Nebula that was created when the World of Build merged with its mirror version. It is the most powerful form of Nebula Gas. Those who are exposed to the Phantom Liquid gain the ability to transform into a Phantom Crusher. In addition, if a person has been exposed to Nebula Gas in the past, being exposed to Phantom Liquid will allow them to transform into a Kamen Rider or Smash even if they do not currently have Nebula Gas in their bodies. Thus, the New World versions of Kazumi Sawatari and the Hokuto Sanbagarasu are still able to transform into Grease and Smash, respectively, as they were exposed to the Phantom Liquid while in a hot spring.[Build NEW WORLD: Kamen Rider Grease]

Gallery[]

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Icon-build Kamen Rider Build
Kamen Riders
TV-Series: Sento Kiryu (Takumi Katsuragi) - Ryuga Banjo - Kazumi Sawatari - Gentoku Himuro - Evolto - Nariaki Utsumi - Shinobu Katsuragi
Movie-exclusive: Kengo Ino - Killbus - Keiji Uraga
Gear
Drivers/Transformation Gear
Build Driver - Transteam Gun - Nebulasteam Gun - Sclash Driver - Evol-Driver
Build Driver Adapters
(Great) Cross-Z Dragon - Hazard Trigger - Cross-Z Magma Knuckle - Evol-Trigger - Grease Blizzard Knuckle - Killbuspider - Grease Perfect Kingdom
Normal Weapons
Drill Crusher - Hawk Gatlinger - 4Koma Ninpoutou - Kaizoku Hassyar - Fullbottle Buster - Steam Blade - Beat Closer - Twin Breaker
Suit-Equipped Weapons
Muscle Glove - Solstall Wings - Giant Scratcher - Space Ride Arm - Spine Knuckle - Long Range Cleaner - Trash Converter - Gold Lio Gauntlet - Multi Deluge Gun
Collectible Devices
Fullbottles - Sclashjellies
Fullbottle-related Devices
Fullbottle Holder - Pandora Box - Build Phone - Halfbodies
Terminologies
Vortex Finish - Hazard Level - Project Build - Sky Wall - Nebula Gas
Other
Utan - Higetan
Allies
nascita: Misora Isurugi - Soichi Isurugi - Sawa Takigawa - Kazumi Sawatari - Gentoku Himuro
Legend Riders: Eiji Hino - Gentaro Kisaragi - Kouta Kazuraba - Takeru Tenkuji - Emu Hojo - Hiiro Kagami - Taiga Hanaya - Kiriya Kujo - Kuroto Dan - Parado - Poppy Pipopapo - Sougo Tokiwa - Geiz Myokoin - Tsukuyomi - Is - Reika Shindai - Sakura Igarashi - Hana Natsuki
Prime Ministers: Taizan Himuro (Touto) - Yoshiko Tajimi (Hokuto) - Masakuni Mido (Seito)
Namba Heavy Industries Ltd.: Juzaburo Namba - Nariaki Utsumi - Haruhiko Wanibuchi - Guardian
Hell Bro's: Fu Washio - Rai Washio - Yoshikazu Takahashi - Norio Matsui
Aliens: Vernage
Girls Remix: Akiko Narumi - Kanon Fukami - Rinko Daimon - Lovekov
Faust
Gentoku Himuro - Evolto - Nariaki Utsumi - Takumi Katsuragi - Shingo Kuwata - Eita Kawai - Yoshikazu Takahashi - Norio Matsui
Smash
Normal Smash: Fang Smash - Needle Smash - Strong Smash - Burn Smash - Flying Smash - Mirage Smash - Square Smash - Press Smash - Ice Smash - Stretch Smash
Empowered Smash: Strong Smash Hazard - Press Smash Hazard - Stretch Smash Hazard - Flying Smash Hazard
Hard/Hazard Smash: Castle Hard/Hazard Smash - Stag Hard/Hazard Smash - Owl Hard/Hazard Smash
Clone Smash: Press Clone Smash - Stretch Clone Smash - Strong Clone Smash - Flying Clone Smash
Lost Smash: Owl Lost Smash - Stag Lost Smash - Castle Lost Smash - CD Lost Smash - Scissors Lost Smash - Zebra Lost Smash
Foundation X
Kaisers: Kaisei Mogami (World of Build, World of Ex-Aid) - Nebula Bugster
Blood Tribe
Kengo Ino - Ryoka Saiga - Mitsuomi Gobara - Evolto - Killbus - Akaba (imitation) - Aoba (imitation) - Kiba (imitation) - Remocon Bro's (imitation) - Engine Bro's (imitation)
Down Fall
Keiji Uraga - Simon Marcus (Phantom Crusher)
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