Metal Heroes Wiki
This article is about a/an hero in Juukou B-Fighter.

"Blue Beet!"
-His catchphrase after his transformation.

Takuya Kai (甲斐(かい) 拓也(たくや) Kai Takuya?) is the main protagonist of Juukou B-Fighter. He is 23-year-old entomologist at the Earth Academia who transforms into Blue Beet (ブルービート Burū Bīto?), the leader of B-Fighter[1].


Juukou B-Fighter

Takuya joined Earth Academia six months ago to solve various problems on Earth. He is the first to meet Guru in the South American rainforest, he was also the first to gain a B-Commander and use his suit. A blood sample from Takuya was used by the evil sorcerer Jagul in the creation of his evil clone Shadow with the help of a kamikirimushi (long-horned beetle). Knowing that Shadow is a clone of himself, he loses his fighting spirit and leaves the front line from the feeling of self-responsibility that "the cause of Shadow is himself", but he regaining his fighting spirit after realized that he can ends his fate with Shadow.

In Episode 51, Takuya made a final single combat with the Black Beet, and became a trade-off. Even though he died, he was given a life by Saint Papilia, who was impressed by his desire to prioritize many lives on Earth over himself, and achieved a resurrection.

After that, in the joint force with Janperson, Gun Gibson, and Blue SWAT, he renewed his determination with the scolding and help of the two major heroes, although he once pulled his legs with a dance from the pride of defeating Jamahl, defeated the Destructive God Jagul, who is also the creator of the Shadow.

B-Fighter Kabuto

Takuya in B-Fighter Kabuto Episode 1

After the defeat of Jagul, He worked at the Beetle Base along with Guru to form a New Generation of B-Fighters. He returned along with his team on Episodes 25-27, and 47 to help the New B Fighters. After Guru died protecting the insects from Dargriffon, and their B-Commanders disappeared, He buried Guru in the cave where he first found him.

B-Robo Kabutack

Kabutack&Blue Beet&B-Fighter Kabuto.JPG

A toy version of Takuya was brought to life by the Star Pieces. Kabutack and Judge Robo Tomborg did it to help Kabutack kill the A-Robos. They accomplished the task, and they turned back to normal and the Star Piece disintegrated.B-Robo Kabutack: The Epic Christmas Battle

Space Squad

Blue Beet with B-Fighter Kabuto.

Alongside B-Fighter Kabuto, Blue Beet was a candidate to join the Space SquadIcon-crosswiki.png, a combined force of Sentai and Metal Heroes assembled by the Galactic Union Police under Geki Jumonji to combat the Genmakuu crime cult. Uchuu Keiji Gavan vs. Tokusou Sentai Dekaranger

Kyuranger vs. Space Squad


Evidently, Blue Beet was indeed inducted as a member of Space Squad. Uchu Sentai Kyuranger vs. Space Squad

Super Mode of Toei Metal Spirit



Stage Show Appearances

Ohranger Stage Show at Double Hero Korakuen YuenchiIcon-crosswiki.png

In a stage show where the OhrangersIcon-crosswiki.png are seen fighting usual foes, Gigaro and Jamars show up and wind up defeating them. Blue Beet, G-Stag, and Reddle arrive and assist the Ohrangers.

Ohranger Stage Show at Return of Himitsu Sentai Gorenger Korakuen YuenchiIcon-crosswiki.png

In a stage show where the Ohrangers are seen fighting usual foes, Gigaro and Jamars show up and wind up defeating them. GorengerIcon-crosswiki.png, Blue Beet, G-Stag, and Reddle arrive and assist the Ohrangers.

Ohranger Stage Show at Final Battle Korakuen YuenchiIcon-crosswiki.png

In a stage show where the Ohrangers are seen fighting usual foes, Gigaro, Shadow and Jamars show up and wind up defeating them. Blue Beet, G-Stag, and Reddle arrive and assist the Ohrangers.


Takuya has an intelligent and gentle personality, loves nature deeply, has a stronger fighting spirit against evil than anyone else, and is willing to sacrifice himself to protect others.


Blue Beet

Blue Beet


  • Height: 203 cm
  • Weight: 118 kg

Ability Parameters[2]

  • Maximum Jump Height: 36 m
  • Maximum Running Speed: 100 m. per 2.8 sec.

As Blue Beet and leader of the team, his Insect Armor was modeled after a kabutomushi (helmet beetle). Blue Beet's Beet Machine is the Beetluder.


Beet Machine

Super Blue Beet

Super Blue Beet

In Episode 36, Blue Beet gained the ability to evolve into Super Blue Beet (スーパーブルービート Sūpā Burū Bīto?) using Beet Ingram and Takuya's fierce anger.

As a physical feature, a Generator Parts (ジェネレーターパーツ Jenerētā Pātsu?) are equipped on the left arm and the shins of both legs, a Power Generator (パワージェネレーター Pawā Jenerētā?) reminiscent of a four huge metallic insectoid wings is formed on the back, and a Plasma Dischargers is growing from his wrists and ankles.

Its ability surpasses that of Blue Beet, it does not accept all the rays attack from the enemy, and in close combat it has the power to blow off monsters with just one hand punch, so it can be said to be virtually invincible and has the strongest fighting ability of all armor.

Takuya transforms to Super Blue Beet with the command "Metal-phose!" (メタルフォーゼ Metarufōze?), and in this mode he can employ the full power of the Beet Ingram. Energy is collected in his wings and is then transferred to the Beet Ingram Final Mode, releasing the Super Final Blow.


Appearances: B-Fighter Episodes 36, 39, 41, 42, 47 & 50-53

Henshin & Roll Call

Metal Hero Key

The Blue Beet Ranger Key

"Special Ranger Key!"
MobilatesIcon-crosswiki.png' Gokai ChangeIcon-crosswiki.png announcement (toy)[src]

The Blue Beet Key (ブルービートキー Burū Bīto Kī?) is a Metal Hero Key that appears in Kamen Rider × Super Sentai × Space Sheriff: Super Hero Taisen Z. It was used by Gokai BlueIcon-crosswiki.png.

A custom Blue Beet Ranger Key.

Behind the Scenes


Opening Credits

Takuya Kai is portrayed by Daisuke Tsuchiya (土屋 大輔 Tsuchiya Daisuke?). As Blue Beet, his suit actor is Jiro Okamoto (岡元 次郎 Okamoto Jirō?)[4][5], Hideaki Kusaka (日下 秀昭 Kusaka Hideaki?)[6][7], who is also Super Blue Beet's suit actor, and Seiji Takaiwa (高岩 成二 Takaiwa Seiji?)[8][9][10], only in action scene.


Main article: List of Takuya Kai's appearances

See Also

External Links


  1. Hobby Japan. (2018). "Uchusen" Vol.161 (SUMMER 2018). pp. 94-97, "Uchusen Archives Juukou B-Fighter". ISBN 978-4-7986-1719-0.
  2. 2.0 2.1 Shogakukan <Televi-kun Deluxe Favorite Edition>. (1996). "Juukou B-Fighter Cho Zenshu". pp. 4-5, "Blue Beet - Takuya Kai". ISBN 978-4-09-101452-8.
  4. Ohta Publishing. (2010). "JAE NAKED HERO". p. 34, "LIST OF WORKS Jiro Okamoto". ISBN 978-4-7783-1210-7.
  5. Tatsumi Publishing. (2014). "Toei Hero Masked Actor Retsuden". pp. 47-60, "Chapter 2 From Showa to Heisei Innovation under the Mask 04 Jiro Okamoto" (published in Toei Hero MAX Vol.31). ISBN 978-4-7778-1425-1.
  6. Tatsumi Publishing. (2014). "Toei Hero Masked Actor Retsuden". pp. 133-142, "Chapter 4 Takumi's Techniques and Work Engraved in Toei Hero History 12 Hideaki Kusaka". ISBN 978-4-7778-1425-1.
  7. Kodansha <Kodansha Series MOOK>. (2017). "Super Sentai Official Mook 21st Century Vol.5 Mahou Sentai Magiranger". p. 32, "Backstage of Super Sentai Production Hideaki Kusaka". ISBN 978-4-06-509516-4.
  8. Ohta Publishing. (2010). "JAE NAKED HERO". p. 141, "LIST OF WORKS Seiji Takaiwa". ISBN 978-4-7783-1210-7.
  9. Tatsumi Publishing. (2014). "Toei Hero Masked Actor Retsuden". pp. 5-22, "Chapter 1 Mr. Heisei Rider & Mr. Red's Trajectory 01 Seiji Takaiwa" (Toei Hero MAX vol.27/28). ISBN 978-4-7778-1425-1.
  10. Kodansha <Kodansha Series MOOK>. (2017). "Super Sentai Official Mook 21st Century Vol.5 Mahou Sentai Magiranger". p. 33, "Backstage of Super Sentai Production Seiji Takaiwa". ISBN 978-4-06-509516-4.
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