Kaisers

Kamen Rider Heisei Generations FINAL : Build & Ex-Aid with Legend Riders

The Kaiser System was originally developed by Kaisei Mogami of the World of Build in conjunction with his other self from the World of Ex-Aid as a biological weapon via the combination of Nebula Gas and Bugster Virus. Joining forces, they became the Bikaiser, only to be defeated by the combined forces of Kamen Rider Build and Kamen Rider Ex-Aid.

Hell Bros

Acting on behalf of Blood Stalk and Nanba Heavy Industries, Nariaki Utsumi updated the Kaiser System. Its test subject was a man who was abducted and exposed to Nebula Gas. However, instead of becoming a Smash, he was provided with a Nebulasteam Gun to become the prototype Nebula Hell Bros. Accompanied by a squad of Faust Guardians, Nebula Hell Bros was sent to attack a Touto facility holding Fullbottles. He was confronted by Sento Kiryu who, recognizing the model as a Bikaiser, initially believed him to be Kaisei Mogami, the man who originally developed and used the Kaiser System to transform.

Publication Information

Build : Kaisers
Japanese : カイザー
Version : Kamen Rider Build
Type : Kamen Rider-like villains
Season : Kamen Rider Build

Kamen Rider Build : Raising the Hazard Level ~7 Best Matches~: Final Chapter

Data collected from the Clone Hell Bro's were used by Utsumi to create the Clone Smashes. Ultimately, the Nebulasteam Gun and Gears were granted to brothers Fu and Rai Washio, whom served as soldiers of Seito, which CEO Juzaburo Namba backed to dominate Japan. These new Hell Bro's Kaisers proved superior in power to the Hard Smash Hazards as well as the Kamen Riders prior to Rogue.

Kamen Rider Build

Name of several Kamen Rider-like villains in Kamen Rider Build, including the following characters:

Forms

Standard

Remocon Bro's

Remocon Bro's
- Origin : Earth (World of Build)
- Version : Kamen Rider Build
- Type : Riders
- Announcement : Gear Remocon! Funky! (Rhythmic beeping) Remote Control Gear!
- Form : Remocon Bro's
- Height : 202.0 cm
- Weight : 103.5 kg
- Punching Power : 30.5 t
- Kicking Power : 37.2 t
- Maximum Jump Height : 48.6 m
- Maximum Running Speed : 100 m. per 1.7 sec
- Appearances : ROGUE Episode 1, Build Episodes 23-25, 29-32
Remocon Bro's is the turquoise Kaiser accessed with Gear Remocon. This updated Kaiser System was created by Nariaki Utsumi, based on the one originally developed by Kaisei Mogami. Remocon Bro's possesses strength to rival Kamen Rider Grease, Kamen Rider Cross-Z Charge, and Kamen Rider Build RabbitTank Sparkling Form, only beginning to struggle with Build's RabbitTank Hazard Form.

Finishers

Nebulasteam Gun finisher:

Funky Drive : Remocon Bro's channels the power of a Gear and performs a powerful blast attack.
- Gear Engine :
- Gear Remocon : Remocon Bro's shoots energy gears at the enemy. This finisher can be accompanied with a Kaiser wielding the Steam Blade.
Funky Attack : Remocon Bro's channels the powers of a Fullbottle and performs a powerful blast attack.

Nebulasteam Rifle finisher:

Funky Shot : Remocon Bro's channels the power of a Gear or Fullbottle and performs a powerful blast attack.

Gear Engine :
- Elek Steam : Remocon Bro's shoots an electric energy-like engine bolt at the enemy.
Gear Remocon :

Engine Bro's

Engine Bro's
- Origin : Earth (World of Build)
- Version : Kamen Rider Build
- Type : Riders
- Announcement : Gear Engine! Funky! (Rock music, engine revving) Engine Running Gear!
- Form : Engine Bro's
- Height : 203.0 cm
- Weight : 103.5 kg
- Punching Power : 30.2 t
- Kicking Power : 37.2 t
- Maximum Jump Height : 48.6 m
- Maximum Running Speed : 100 m. per 1.7 sec.
- Appearances : ROGUE Episode 1, Build Episodes 23-26, 29-32
Engine Bro's is the white Kaiser accessed with Gear Engine. This updated Kaiser System was created by Nariaki Utsumi, based on that originally developed by Kaisei Mogami. Engine Bro's possesses strength to rival Kamen Rider Grease, Kamen Rider Cross-Z Charge, and Kamen Rider Build RabbitTank Sparkling Form, only beginning to struggle with Build's RabbitTank Hazard Form. Engine Bro's, however, is not without a weakness. Being based on an engine, he can easily be damaged with water-based attacks.

Finishers

Nebulasteam Gun finisher:

Funky Drive : Engine Bro's channels the power of a Gear and performs a powerful blast attack.
- Gear Engine :
- Gear Remocon : Engine Bro's shoots energy gears at the enemy. This finisher can be accompanied with a Kaiser wielding the Steam Blade.
Funky Attack : Engine Bro's channels the powers of a Fullbottle and performs a powerful blast attack

Nebulasteam Rifle finisher:

Funky Shot : Engine Bro's channels the power of a Gear or Fullbottle and performs a powerful blast attack.
- Gear Engine :
- Gear Remocon :

Blue Kaiser / Left Kaiser

Blue Kaiser / Left Kaiser
- Origin : Earth (World of Build)
- Version : Kamen Rider Build
- Type : Riders
- Announcement : Gear Remocon! Funky! (Rhythmic beeping) Remote Control Gear!
- Form : Blue Kaiser
- Height :
- Weight :
- Punching Power :
- Kicking Power :
- Maximum Jump Height :
- Maximum Running Speed :
- Appearances : Heisei Generations FINAL: Build & Ex-Aid with Legend Riders, Build Episode 23
Blue Kaiser, also named Left Kaiser, is the blue Kaiser accessed with a blue Gear Remocon.

Finisher

Kaiser's finisher is the Funky Drive : Kaiser channels the power of a Gear and performs a powerful blast attack.
- Gear Remocon : Kaiser fires a blue large gear energy shot at the enemy.

Kaiser Reverse / Right Kaiser

Kaiser Reverse / Right Kaiser
- Origin : Earth (World of Build)
- Version : Kamen Rider Build
- Type : Riders
- Announcement : Gear Engine! Funky! (Rock music, engine revving) Engine Running Gear!
- Form : Kaiser Reverse
- Height :
- Weight :
- Punching Power :
- Kicking Power :
- Maximum Jump Height :
- Maximum Running Speed :
- Appearances : Heisei Generations FINAL: Build & Ex-Aid with Legend Riders
Kaiser Reverse, also named Right Kaiser, is the red Kaiser accessed with a red Gear Engine.

Finisher

Kaiser Reverse's finisher is the Funky Drive : Kaiser Reverse channels the power of a Gear and performs a powerful blast attack.
- Gear Engine : Kaiser Reverse fires a large energy shot at the enemy, then follows it up with a roundhouse kick that leaves behind a trail of red energy.

Fusion

Hell Bro's

Hell Bro's
- Origin : Earth (World of Build)
- Version : Kamen Rider Build
- Type : Riders
- Announcement : Gear Engine! Gear Remocon! Funky Match! Fever! (Rhythmic beeping, engine revving) Perfect!
- Form : Hell Bro's
- Height : 202.0 cm
- Weight : 108.0 kg
- Punching Power : 41.6 t
- Kicking Power : 50.6 t
- Maximum Jump Height : 64.8 m
- Maximum Running Speed : 100 m. per 1.4 sec
- Appearances : Raising the Hazard Level ~7 Best Matches~ Episodes 2-3, Build Episodes 26-27, 29-32
Hell Bro's is the fusion of Engine Bro's and Remocon Bro's accessed by inserting either Gear Engine or Gear Remocon into the Nebulasteam Gun, then removing it and inserting the other gear before pulling the trigger. As Hell Bro's is a fusion of both Kaisers, Hell Bro's stats are higher than even Kamen Rider Rogue, with speed being similar to Build's Hazard Forms and average jumping power.

Finisher

Nebulasteam Gun finisher:

Funky Finish : Hell Bro's channels the power of a Gear and performs a powerful blast attack.
- Gear Engine :
- Gear Remocon :
Funky Attack : Hell channels the powers of a Fullbottle and performs a powerful blast attack.

Nebulasteam Rifle finisher:

Funky Shot : Hell channels the power of a Gear or Fullbottle and performs a powerful blast attack.
- Gear Engine :
- Gear Remocon :

Bikaiser

Bikaiser
- Origin : Earth (World of Build)
- Version : Kamen Rider Build
- Type : Riders
- Announcement : Gear Engine! Gear Remocon! Funky Match! Fever! (Rhythmic beeping, engine revving) Perfect!
- Form : Bikaiser
- Height :
- Weight :
- Punching Power :
- Kicking Power :
- Maximum Jump Height :
- Maximum Running Speed :
- Appearances : Heisei Generations FINAL: Build & Ex-Aid with Legend Riders, Build Episode 27
Bikaiser is the fusion of Kaiser and Kaiser Reverse accessed when both Kaisers transform together

Nebula Hell Bro's

Prototype Bikaiser

Prototype Bikaiser
- Origin : Earth (World of Build)
- Version : Kamen Rider Build
- Type : Riders
- Announcement :
- Form : Gearless Bi-Kaiser
- Height :
- Weight :
- Punching Power :
- Kicking Power :
- Maximum Jump Height :
- Maximum Running Speed :
- Appearances : Kamen Rider Heisei Generations FINAL: Build & Ex-Aid with Legend Riders, Raising the Hazard Level ~7 Best Matches~ Episodes 1-2, Build Episodes 26-27, 29-32
Nebula Hell Bro's is the prototype of Bikaiser, is a basic body of the Kaiser with no Gears attached. Though typically bypassed altogether in the transformation to Kaiser, it is briefly seen during the transformation to the combined Bikaiser.

Nebula Hell Bro's

Nebula Hell Bro's
- Origin : Earth (World of Build)
- Version : Kamen Rider Build
- Type : Riders
- Announcement :
- Form : Nebula Hell Bro's
- Height :
- Weight :
- Punching Power :
- Kicking Power :
- Maximum Jump Height :
- Maximum Running Speed :
- Appearances : Kamen Rider Heisei Generations FINAL: Build & Ex-Aid with Legend Riders, Raising the Hazard Level ~7 Best Matches~ Episodes 1-2, Build Episodes 26-27, 29-32
Unlike the completed Kaisers, the Nebula Hell Bros is more similar to the non-Hard Smash in that the transformed subject's memory is wiped. As such, their awareness is impaired and they are compelled to rampage.