Icon-kuuga.png This article is about a/an Gurongi in Kamen Rider Kuuga.

Zu-Gumun-Ba (ズ・グムン・バ Zu Gumun Ba)[1], also known as Unidentified Life Form #1 (未確認生命体1号 Mikakunin Seimeitai Ichigō) to the police, is the first of the Gurongi to appear in Kamen Rider Kuuga.


Gumun first appeared in southern Nagano weaving a web on the 1532 MK Building, overwhelming law enforcement as he attacks them without mercy with his power to spray webbing and create claw extensions on his hands.

Crashing into the police station, Gumun slaughters the police officers until Yuusuke puts on the Arcle, being targeted by the Gurongi as he becomes Kuuga in "Growing Form" in a fight that ends with Gumun being knocked out of a helicopter several feet in the air. Revival

Surviving the fatal fall, Gumun reappeared to settle the score by aiding Gooma in his clash with Kuuga, now in his Mighty Form. But in the end, the Zu was mortally wounded by Kuuga's incomplete Mighty Kick, screaming his intent to kill Kuuga as he exploded. Transformation

Kamen Rider Decade

World of Kuuga

At least one Zu-Gumun-Ba was part of a group of human-turned Gurongi created when they were exposed to N-Gamio-Zeda's miasma. Some were later absorbed by him in a last effort to defeat Kuuga and Decade. The remaining Gurongi died after Gamio was defeated. Transcendence

World of Agito

Zu-Gumun-Ba was one of two Gurongi seen on the front page of a newspaper detailing the appearance of the Unidentified Life Forms that was read by the Hikari Studio group when they arrived in the World of Agito. Reunion: Project Agito

Kamen Rider Wizard

Zu-Gumun-Ba's destruction at the hands of Kuuga (as seen in Transformation) was shown in a recollection by Amadum as he explained the nature of his world as a paradise for monsters destroyed by the Kamen Riders. The Kamen Rider Rings

Video game appearances

Kamen Rider Kuuga video game

Zu-Gumun-Ba appears as a playable character in the Kamen Rider Kuuga video game.

Kamen Rider Agito & Kuuga Wild Battle

Zu-Gumun-Ba is one of eight Gurongi who are playable in the Fighting, Training, and Survival Modes of Kamen Rider Agito & Kuuga Wild Battle.

Battle Spirits

Zu-Gumun-Ba in Battle Spirits

Zu-Gumun-Ba appears with other Kamen Riders and Monsters in Battle Spirits.



  • Height: 198cm
  • Weight: 196kg
  • Group: Zu

The sticky thread that vomits from its mouth is said to be harder than steel and more supple than silk. This thread can be ejected at a high speed enough to break through the window of a police car with a single blow. He specializes in tactics in which the target is entangled with a thread and stabbed with the elastic claws growing from the back of the hand. Also, it has the ability to move while sticking to the wall. In addition to this, it possesses super-speed counter attack and supernatural power as a common ability of Gurongi, boasting vitality that invalidates even handgun's bullets, and a strong arm that gently pushes the bus.

Behind the scenes


Zu-Gumun-Ba's voice actor is Tetsuo Sakaguchi (坂口哲夫 Sakaguchi Tetsuo) (in series) and Kōichi Sakaguchi (坂口候一 Sakaguchi Kōichi) (in Special Chapter).

His suit actor is Hirofumi Fukuzawa (福沢 博文 Fukuzawa Hirofumi).

Concept Art

Zu-Gumun-Ba concept art

Zu-Gumun-Ba was designed by Takuya Abe (阿部 卓也 Abe Takuya).


  • His name is derived from the Japanese word for "spider" (蜘蛛 Kumo).
  • Zu-Gumun-Ba being a spider Gurongi and the first Gurongi to appear mirrors Spider Man, the spider Shocker kaijin and the first kaijin to be fought by the original Kamen Rider, being the first kaijin of the first show of the original era just as Zu-Gumun-Ba is the first kaijin of the first show of the revival era.
  • Zu-Gumun-Ba is the only Gurongi in the show whose human form is not seen.
  • Zu-Gumun-Ba is also known as Spider-type Monster Zu-Gumun-Ba (クモ種怪人 ズ・グムン・バ Kumo-shu Kaijin Zu Gumun Ba).



External Links

Icon-kuuga.png Kamen Rider Kuuga
Riku - Yusuke Godai - Mika Natsume (Novel Only)
Arcle - Amadam - Gouram - TryChaser 2000 - BeatChaser 2000 - Dragon Rod - Pegasus Bowgun - Titan Sword - Mighty Anklet
Kaoru Ichijo - Hikari Enokida - Sadao Matsukura - Morimichi Sugita - Tsuyoshi Sakurai - Nozomi Sasayama
Other Allies and Characters
Sakurako Sawatari | Minori Godai | Shuichi Tsubaki | Tamasaburo Kazari | Nana Asahina | Jean Michel Sorrel | Mika Natsume | Shoji Kanzaki | Junichi Chono
Ra Group

Ra-Baruba-De | Ra-Dorudo-Gu

Zu Group

Zu-Gumun-Ba | Zu-Goma-Gu | Zu-Mebio-Da | Zu-Badzu-Ba | Zu-Zain-Da

Me Group

Me-Badjisu-Ba | Me-Giiga-Gi | Me-Biran-Gi | Me-Gyarido-Gi | Me-Gadora-Da | Me-Ginoga-De | Me-Garume-Re | Me-Garima-Ba

Go Group

Go-Buuro-Gu | Go-Bemiu-Gi | Go-Gamego-Re | Go-Bada-Ba | Go-Jaraji-Da | Go-Zazaru-Ba | Go-Jaaza-Gi | Go-Baberu-Da | Go-Gadoru-Ba

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