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

This Collabos Bugster (コラボスバグスター, Korabosu Bagusutā) appeared exclusively in Kamen Rider Ex-Aid "Tricks": Kamen Rider Genm. It can copy and manipulate the Rider Gashat installed on his head.


This Collabos Bugster appeared in order to collect data for the penultimate three Heisei Rider Gashats as part of Genm Corp. CEO Kuroto Dan's secret ambition to assemble the power of the legends. Intercepting Emu Hojo who was on the way to return the Kaigan Ghost Gashat to Kuroto, this Bugster, initially utilizing the Proto Gekitotsu Robots Gashat that had been stolen from Genm Corp. by Dr. Pac-Man, easily overpowered Ex-Aid when he assumed Ghost Gamer Level 2 on hand again. Kuroto provided Ex-Aid with the Full Throttle Drive Gashat to fight back. After Ex-Aid in Drive Gamer Level 2 defeated it, the Bugster switched to the Proto Giri Giri Chambara Gashat and attacked Kuroto though inflicting no serious injurie. Appropriately provided with the Toukenden Gaim Gashat to face the now katana-wielding Bugster, Ex-Aid disarmed it again in Gaim Gamer Level 2. Kuroto transformed into Genm to complete the data collection personally, doing so by swiftly defeating Ex-Aid using Wizard Gamer Level 2, retrieving the Proto Giri Giri Chambara himself. This allowed him to complete his Ganbarizing Gashat which he plugged into the Collabos Bugster's head, projecting a Game Area from which duplicates of Kamen Riders Double, OOO and Fourze were summoned.

As Genm's Kamen Riders were fought by the three doctor Riders in Game Areas generated by Bandai Namco Gashats provided to them by "Dr. Pac-Man", the Collabos Bugster was found by Poppy Pipopapo, inert and projecting a blank Game Area which soon enough manifested as Ganbarizing, causing it to come back to life and go berserk before Ex-Aid arrived, allowing Poppy to get away. Taking out the Ganbarizing Gashat from the Bugster's head, Ex-Aid inserted it into his Gashacon Breaker, performing its Critical Finish to destroy the Bugster.


to be added


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).

File:KREA-Collabos Bugster Original.png

Collabos Bugster Prime Body

The blank form Collabos Bugsters have when not infused with a Rider Gashat.

Appearances: "Tricks": Kamen Rider Genm (Legend Rider Stage, Legend Gamer Stage)

Collabos Bugster (Proto Gekitotsu Robots)

The Proto Gekitotsu Robots Gashat arms the Collabos Bugster with raw physical strength. Its right fist can be launched and fly to hit far away targets before returning.

The armament gained from this Gashat is similar to the Robol Bugster.

This form is exclusive to Kamen Rider Ex-Aid "Tricks": Kamen Rider Genm "Part. I: Legend Rider Stage"

Collabos Bugster (Proto Giri Giri Chambara)

The Proto Giri Giri Chambara Gashat gives the Collabos Bugster expert skills with a samurai sword, noted by Emu as being too fast to land a hit on.

The armament gained from this Gashat is similar to the Giril Bugster.

This form is exclusive to Kamen Rider Ex-Aid "Tricks": Kamen Rider Genm "Part. I: Legend Rider Stage"

Collabos Bugster (Ganbarizing)

The Ganbarizing Gashat, while not granting armor to the Collabos Bugster, does allow it to act as a conduit to channel its power by generating a Game Area and summoning past Kamen Riders.

Appearances: "Tricks": Kamen Rider Genm (Legend Rider Stage, Legend Gamer Stage)

Behind the Scenes


This Bugster was portrayed by an unidentified suit actor.


  • This is the first Collabos Bugster to use more than one Gashat.



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 Maxima - 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
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