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Icon-exaid.png This article is about a monster in Kamen Rider Ex-Aid.

Revol Bugster (リボルバグスター, Riboru Bagusutā, Revolve Bugster) is the monster born from data of the shooting video game, Bang Bang Shooting. He is based on the data of Commander Revol, a boss from the stuck-in-development hell game.

As recorded by CR, Revol is part of the Low Tier of Bugsters within Kamen Rider Chronicle: alongside Salty, Aranbura, Motors, and Charlie. [The Forbidden Continue!?]



Revol is the boss of the Genm Corp. game Bang Bang Shooting, conceived by Kuroto Dan. As a Bugster, Graphite's origin is traced to the Y2K bug, which left what would be known as the Bugster Virus on the younger Dan's computer shortly following New Year's 2000. Secretly incubating the virus by infecting the young Emu Hojo with it, Kuroto Dan would arrange for its matured form to be extracted by Michihiko Zaizen ten years later.

Initial Emergence

Five years after Zero Day, the Revol Bugster emerged from Game Disease victim Yuki Kitami, a patient who was afraid of doctors, when he reached a high stress point by letting his fear overpower him. The situation was made worse by Emu, Hiiro, and Taiga tried to save him, scaring Yuki as the Kamen Riders fight Revol and his soldier Bugster Viruses. The infection spread as Yuki's fear reached its peak and summoned copies of himself to fight the Riders. After Ex-Aid risked his life by taking on Revol's gunfire to convince Yuki to overcome his fear of doctors, the patient no longer felt stressed, the Bugster infection weakened. Revol was suddenly unable to summon more duplicates, and was seemingly defeated by Ex-Aid's Mighty Critical Finish, only to be revealed as duplicate stand-in. As the real Revol was invisible and about to sneak-attack Ex-Aid, Kamen Rider Snipe was able to see though the monster and eliminate him with the Bang Bang Critical Finish.

Level 5

Now evolved to Level 5, Revol re-emerged when Nico Saiba, a patient with a vendetta against "Genius Gamer M", reached a high stress point when Taiga scolded her for stealing his Gamer Driver and Bang Bang Shooting Gashat. He summoned a group of his soldier Viruses, and they fought Brave and Snipe while Ex-Aid's attacks did nothing to him, owing to Emu being Nico's source of stress making him an "ally" to them and thereby rendering these Bugsters invulnerable to him alone. Genm Level X arrived to fight Ex-Aid, leaving Revol without an opponent, and then covered their retreat. Revol later tried to attack the Riders again, but was chained up on the sidelines by Parado to make way for his debut as Para-DX.

Revol and his soldiers later showed up to protect Emu from Brave trying to force out his Bugster infection, as Emu is the source of Nico's stress. Even when Emu joined the fight and attacked Revol, his attacks still missed. Revol escaped with Genm. He later reappeared to protect Emu from Snipe, who attacked Emu only to draw out Revol, fighting him until Genm took over. Then Revol saw Para-DX defeating Ex-Aid Level XX. He reluctantly attacked Para-DX to defend the only thing that could lead to him becoming a complete being, but his attacks were too weak, and Para-DX destroyed Revol against Genm's order with a Knock Out Critical Smash for interfering with his "fun", his debris quickly being collected by Genm with the Gashacon Bugvisor.

Kamen Rider Chronicle

Revol briefly appeared alongside the other revived Bugsters summoned by Parado before being pulled into the start screen of Kamen Rider Chronicle, completing the game.

He soon appeared at an unknown Level as an enemy of Kamen Rider Chronicle infecting a woman Ride-Player, terrorizing her and other Ride-Players with his soldier Viruses. As he was about to fight Ex-Aid and Brave Level 2, Nico arrived and became a Ride-Player, quickly and easily defeating his Viruses with bumper car animals before defeating Revol with a "Nico Critical Kick". He became the first Bugster in Kamen Rider Chronicle to be defeated by a Ride-Player.

Revol was one of four Bugster bosses that were summoned against the Kamen Riders by Masamune Dan once he became Super Gamedeus. They were eliminated with Gamedeus' virus by the vaccine spread through Doctor Mighty XX by Poppy Pipopapo's sacrifice.

Other Events

Kamen Sentai Gorider

Revol was part of an perpetually reviving army of Bugsters which emerged in the real world as a result of Kuroto Dan's plot to revive in the Game World. This endless horde was held off by Kamen Riders Brave and Snipe, sharing the Gashat Gear Dual β and Hunter Gamer between each other, while Emu Hojo was sent from CR to the Game World to stop Dan. Ultimately, the Bugster horde was suddenly dissipated in an instant as the destruction of the Game World brought about by Kazuma Kenzaki thwarted Dan's ambition to revive.

Other Events


A female version of Revol appeared in a stageshow.


Born from the data of Commander Revol, the Revol Bugster has great commanding skills, and is shown to be frustrated when his opponents don't use full battle strategies to face him and instead treat their fight like a simple "mindless brawl". However, when it comes to situations where things are beyond his control, he easily gets dumbfounded and confused. He's also scared of heights.


Bugster Virus bacterium.

The Bugsters originate as the microscopic Bugster Virus (バグスターウイルス, Bagusutā Uirusu), a result of humans being contaminated by the Bugster, thus developing the condition known as the Game Disease (ゲーム病, Gēmu-byō).

The revolver-like Bugster Union that became the Revol Bugster.

The Bugster Union (バグスターユニオン, Bagusutā Yunion) is the monster form of a Bugster-infected patient when the virus first flares up. When a Bugster-infected patient experiences enough stress, the Bugster Viruses inside multiply rapidly and overtake the patient's body, forming a giant orange virus form around it; the Union's shape seems largely irrelevant to the Bugster's appearance. Bugster Unions can only be defeated by a Kamen Rider in Level 1; the reason why is unexplained, though it may be because other Levels are too strong and may injure the patient inside the Union.

Appearances: Ex-Aid Episode 3

Revol Bugster

The Revol Bugster has a large machine gun named the Revol Arm (リボルアーム, Riboru Āmu) on his right arm, a smaller machine gun over his left hand, and a cannon on his back as his main weapons. He can turn his Bugster Virus soldiers into clones of himself, but only if the infection has enough of a grip on its victim. He also has the ability to turn invisible.

Appearances: Ex-Aid Episode 3

Revol Bugster Level 5

  • Height: 222.0 cm
  • Weight: 167.6 kg

Revol later returns as a Level 5 (レベル5, Reberu Faibu) Bugster, armed with a tactical support device attached on the side of his face, manifesting into his monster form immediately from Nico Saiba, who has a deep hatred toward Emu Hojo. Since Emu was the one who gave her stress, he is the only one who cannot harm Revol and his Bugster Virus soldiers.

Appearances: Ex-Aid Episodes 15, 16

Powers and Abilities

Revol's initial form is armed with a large machine gun on his right arm, a smaller machine gun on his left hand, and a canon on his back. They function as powerful guns.

His Level 5 form has these same weapons and an additional Gatling gun on the left side of his face.

Behind the Scenes


Concept Art

Revol Bugster concept art

Revol Bugster was designed by Katsuya Terada (寺田 克也, Terada Katsuya).


  • Revol Bugster's use of henchmen disguised as himself is similar to the Fake Bowsers from the Mario franchise.
  • Coincidentally, both Taiga and Revol, the Kamen Rider and the Bugster of the same game, had both their phobias openly revealed in the show (ghosts and heights). Both Emu and Parado had the least interaction or cooperation with the former two. As of episode 29, this may not be a coincidence.




Icon-exaid.png Kamen Rider Ex-Aid
Kamen Riders
Emu Hojo - Hiiro Kagami (Game World) - Taiga Hanaya - Kiriya Kujo - Kuroto Dan - Parado - Asuna Karino/Poppy Pipopapo - Masamune Dan - Ride-Players (Nico Saiba - Haima Kagami) - Genm (Bakusou Treasure) - Kagenari Nagumo - Ninja-Player - Black Parado
Game Scope - Gamer Driver - Kimewaza Slot Holder - Rider Gashat - Energy Items - Buggle Driver (II) - Bugster Buckle - Gashat Gear Dual (β - Another) - Rider Gauges - Rider Gashat Case - Energy Item Holder
Gashacon Weapons
Gashacon Breaker - Gashacon Sword - Gashacon Magnum - Gashacon Sparrow - Gashacon Bugvisor (II - G) - Gashacon Key Slasher - Gashacon Parabragun
Other Weapons
Flamber Saber - Ride Weapon - Fuma Sōzantō - Genin Weapon
Robot Gamer - Beat Gamer - Combat Gamer - Chambara Gamer - Sports Gamer - Hunter Gamer - Bike Gamer - Burger Gamer - Fantasy Gamer - Simulation Gamer - Maximum Gamer - Safari Gamer - Tank Gamer - Legacy Gamer - Pac Gamer - Famista Gamer - Xevious Gamer - Galaxian Gamer
Asuna Karino - Haima Kagami - Kyotaro Hinata - Ginko Yumita - Nico Saiba - Satsuki Ogimachi - Mizuki Nishikikoji - Tsukuru Koboshi
Others: Saki Momose - Sakurako Dan - Eight Kirino - Saiko Yaotome
Locations: Seito University Hospital - CR - Ministry of Health - Hanaya Game Illness Clinic - Genm Corp. - Game World - Machina Vision - Next Genome Institute
Generals: Parado - Graphite - Ren Amagasaki - Gamedeus
Movie-exclusive: Michihiko Zaizen - Pac-Man Virus - Hatena Bugster - Soji Kuruse - Kazushige Ryuzaki - Ageha Takeda - Johnny Makishima - Nebula Bugster
Stageshow-exlusive: Futago Bugster
Regular Bugsters: Bugster Virus - Bugster Union - Salty Bugster - Aranbura Bugster - Revol Bugster - Motors Bugster - Collabos Bugsters (Gekitotsu - DoReMiFa - Giri Giri - Jet - Kamen Rider Genm series) - Burgermon Bugster - Gatton Bugster - Vernier Bugster - Kaiden Bugster - Charlie Bugster
Regular Games: Mighty Action X - Taddle Quest - Bang Bang Shooting - Bakusou Bike - Gekitotsu Robots - DoReMiFa Beat - Giri Giri Chambara - Jet Combat - Shakariki Sports - Drago Knight Hunter Z - Dangerous Zombie - Mighty Brothers XX - Perfect Puzzle - Knock Out Fighter - Perfect Knock Out - Ju Ju Burger - Night of Safari - Bang Bang Tank - Taddle Fantasy - Bang Bang Simulations - Taddle Legacy - Maximum Mighty X - Kamen Rider Chronicle - Toki Meki Crisis - Hyper Muteki - Doctor Mighty XX - Mighty Creator VRX - Hurricane Ninja - God Maximum Mighty X - Knock Out Fighter 2 - Zombie Chronicle - Mighty Novel X - Genm Musou
Legend Rider Games: Let's Go Ichi Gou! - Adventure Guy Kuuga - Agito of the Sun - Mirror Labyrinth Ryuki - Moshi Moshi Faiz - King of Poker Blade - Taiko Master Hibiki - Insect Wars Kabuto - Time Express Den-O - DokiDoki Makai Castle Kiva - Barcode Warrior Decade - Detective Double - Jungle OOO - Space Galaxy Fourze - Magic The Wizard - Toukenden Gaim - Full Throttle Drive - Kaigan Ghost - Kamen Rider Build - Ganbarizing
Legend Games: Pac Adventure - Famista - Xevious - Taiko no Tatsujin - Galaxian
Other Games: Hatesate Puzzle - Buddhist Priest of Temple - Chou Super Hero Taisen - Chou Shocker Taisen - Bakusou Treasure - WayoseTUNE - Nazo Toki Labyrinth