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Icon-build.png This article is about a/an secret plan in Kamen Rider Build.

The file on Project Build seen on Sento's computer monitor.

Project Build (プロジェクトビルド Purojekuto Birudo) was a series of top-secret research files compiled by Takumi Katsuragi on the creation of the Rider System (ライダーシステム Raidā Shisutemu) and its accompanying gear.

History

The idea was first conceived by Shinobu Katsuragi, who after the Sky Wall Disaster had discovered that Earth would come under attack by aliens known as the Blood Tribe After receiving his son's blessing and support, Shinobu began work on harnessing the Nebula Gas in order to develop the necessary weaponry strong enough to oppose Evolto. The Scientist of HopeMad World.

Shinobu's efforts to even try and fight against Evolto were noticed by the monster himself, which the latter asked him to restore the essences of the Fullbottles that Vernage drained in order to put his plans back on track. Attempting to defy his orders, Shinobu created the Build Driver and was forced to fake his own death to escape Evolto's demanding clutches. Takumi used his father's research and continued his legacy as a member of Faust. However, Takumi was unaware of the fact that his research was being manipulated into becoming weapons of warfare by Evolto himself, and secretly entrusted the remainders of his research to his mother when he found out. Memory Starts To Talk

Sometime later, Sento Kiryu and Ryuga Banjo visited Takumi's mother and retrieved the files. However, a copy of the Sclash System research blueprints were stolen and given to Nariaki Utsumi, which incited the Japanese Civil War.

The Process

Shinobu began to study the blank Fullbottles and discovered that the essences of the Fullbottles could take on the properties of two things: something biotic or abiotic. In his first attempt to defy Evolto, Shinobu created an experimental system of weapons that could harness the power of these bottles: the Rider System. At the very forefront, Kamen Rider Build was the main product of this series of weapons and the project's namesake.

Build Driver

The simulation of Build

The first Build Driver was created by Shinobu in his first attempt to create a "good" version of Evolto's Evol-Driver that was safe to use by humans, which he took with him as he faked his death and relocated to Seito. After Takumi completed his own construction of the Build Driver using his father's research, he recorded a video demonstration titled File 001 - Build, showcasing Build's combat capabilities against two Guardian. The Trap of Project Build

Takumi's Build Driver was later inherited by Sento, with Sento later building one for Ryuga Banjo.

Sento later creates several adapters for the Build Driver that would allow the usage of one Fullbottle instead of two for a transformation. These adapters include, the Cross-Z Dragon, Blizzard Knuckle, and Perfect Kingdom.

As a result of the new world, Sento was also able to use the Build Driver schematics to recreate a safe and humane version of the Evol-Driver for Nariaki Utsumi.

Transteam Gun

With Takumi's collaboration with the scientist Kaisei Mogami, who invented the concept of Kaisers, they created the Nebulasteam Gun, which allows for transformation from an exposure to Nebula Gas.

Katsuragi explaining the Transteam Gun and Blood Stalk

In retrospect to the people unable to survive the exposure, Takumi created the Transteam Gun to allow those individuals to don a suit of armor safely created without the risks of exposure whatsoever. He had two guns created, one each for Blood Stalk and Night Rogue.

In the video demonstration Takumi recorded under the name File 002 - Blood Stalk, Takumi stated that the Transteam system was created to push Build's growth potential further, by challenging its limitations. These armors grant only an additional measure of defense, while its offensive capabilities depend solely on the users. The system includes a voice modulator to give the user some level of privacy protection.

Sclash System

Sclash Driver Blueprint

Upon Sento accessing File 00X - Sclash, Takumi congratulated him as he unveiled his latest and greatest protect: the Sclashjellies, jelly-pack like containers that contain Fullbottle essence, solidified as gel. However, Takumi admitted that this technology was unfinished, and was only able to create Sclashjellies for two essences.

As Sento continued combing through Takumi's research, he discovered the Jellies were utilized by the new Sclash Driver, which none had existed then. When Soichi had originally stole a copy of the research from Sento, it was presented to Nariaki Utsumi, who then built a Sclash Driver from the schematics for Kazumi Sawatari, who transforms into Kamen Rider Grease. Judging Sento Kiryu! Sento then proceeded to build one of his own for Ryuga Banjo who transforms into Kamen Rider Cross-Z Charge. Later on in the war, Utsumi built one for Gentoku Himuro, who transforms into Kamen Rider Rogue.

All of the Sclash Drivers were destroyed following the formation of the New World. However with Killbus and Down Fall becoming a threat, Sento rebuilt the Sclash Drivers for Ryuga, Kazumi, and Gentoku.

Hazard Trigger

Sento finally accessing the Hazard Trigger

At some point in the past, Shinobu discovered that Pandora Box housed the powerful Evol-Trigger, which was Evolto's catalyst for his Black Hole form and eventual monster form. To combat this, he created the Hazard Trigger, which had the ability to nullify the Lost Bottles that powered Evolto's monster form. The Scientist of Hope It was originally meant to be used alongside the Pandora Box, or at least with one its panels (the Genius Fullbottle), otherwise using it with just the Build Driver and two bottles will pose a serious danger to the user.

Wanting to gain an upper hand in his Proxy Battle with Kazumi, Sento looked to Evolto for advice, which he gave him the Trigger as well as directed him towards a locked file in Takumi's research. Unlocking the video file titled File XXX - Hazard Trigger, Takumi explains that the Trigger not only increases Build's power output dramatically, but prolonged usage will transmute an overwhelming amount of stimuli into the brain, causing the user to induce a destructive and mindless impulse. The Devil's Trigger Later for his Proxy duel with Genoku, Sento created the FullFull RabbitTank Bottle to fully suppress the stimuli while gaining an immense power boost over what the Trigger would already provide.

At one point, Ryuga stole it for Kengo Ino before Sento defeated him and got it back. Kamen Rider Build: Be The One

Enigma and Kamen Rider Ex-Aid Muteki Gamer

The Development Research about Enigma

Project Build contains research on Ex-Aid's Muteki Gamer related powers.

At some point, Takumi began collaborating with Kaisei Mogami on his research of the Enigma, an inter-dimensional system that would allow him to travel between the World of Build and the World of Ex-Aid. Takumi used the portal to travel to Ex-Aid's world, where he thought he encountered Ex-Aid, later leaving and returning. On his final trip there, he met the genuine Ex-Aid and stole his powers. Kamen Rider Ex-Aid: True Ending

After Kaisei Mogami returned and posed a threat to Sento, Sento discovered Takumi's files on Mogami and Ex-Aid's powers, including his trips there. Kamen Rider Heisei Generations FINAL: Build & Ex-Aid with Legend Riders

Notes

  • Project Build itself is an ironic solution to fight Evolto, as most of the weaponry developed under Project Build had originated from Evolto's own property, the Evol-Driver and the Evol-Trigger.
Icon-build.png Kamen Rider Build
Kamen Riders
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
Transformation Devices
Fullbottles - (Great) Cross-Z Dragon - Sclashjellies - Hazard Trigger - Cross-Z Magma Knuckle - Evol-Trigger - Grease Blizzard Knuckle - Killbuspider - Grease Perfect Kingdom
Weapons
Drill Crusher - Hawk Gatlinger - 4Koma Ninpoutou - Kaizoku Hassyar - Fullbottle Buster - Steam Blade - Beat Closer - Twin Breaker - Muscle Glove - Solstall Wings - Giant Scratcher - Space Ride Arm - Spine Knuckle - Long Range Cleaner - Trash Converter - Gold Lio Gauntlet - Multi Deluge Gun
Other
Pandora Box - Halfbodies - Fullbottle Holder - Build Phone
Terminologies
Vortex Finish - Hazard Level - Project Build - Sky Wall - Nebula Gas
Allies
nascita: Misora Isurugi - Soichi Isurugi - Sawa Takigawa - Kazumi Sawatari - Gentoku Himuro
Kamen Riders: Eiji Hino - Gentaro Kisaragi - Kouta Kazuraba - Takeru Tenkuji - Emu Hojo - Hiiro Kagami - Taiga Hanaya - Kiriya Kujo - Kuroto Dan - Parado - Sougo Tokiwa - Geiz Myokoin - Tsukuyomi
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
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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