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Renn Kousaka

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This article is about a/an ranger in Engine Sentai Go-Onger.
"Just Correct!! Go-On Blue!"
―Go-On Blue's roll call[src]

Renn Kousaka (香坂 連 Kōsaka Ren?) is Go-On Blue (ゴーオンブルー Gōon Burū?) of the Go-Ongers. Nicknamed the "Cyclopedia" for his attention to the smallest detail, is a former bus driver who tends to be somewhat talkative.



Because of his doting personality and cooking expertise, he has been referred to as the Go-Ongers' "mother" (オカン okan?) by the other Go-Ongers and even his own Engine partner, Engine Bus-on; he takes no offense to and even revels in the reference. The son of a family that runs a beach-side inn, Renn, as a young boy, prayed and offered omelets every day to a guardian statue in the eventually futile hope that his sickly mother would recover. The guardian statue turned out to be the sealed form of the Arerunbra Uzumaquixote, which Renn learned only after Air Pollution Minister Kitaneidas and Water Pollution Minister Kegalesia tried to claim it. Renn carries a small memo notebook, which is the source of his massive knowledge; in it, he jots down notes about and draws doodles of the enemies the team faces, even in the middle of a fight. Not only is Renn the "mother" of the team, but he is also the chief technician; he made modifications to the Engines so they could come together in the Engine-O G6 and Engine-O G9 formations, developed the Kyuyu Soul and the Double Engine Soul Kankanbar, and assisted the Go-on Wings in fine-tuning the Armored Wheel GoRoader GT. After the final battle, Renn becomes Sosuke Esumi's mechanic in the go-kart racing circuit.

As Go-on Blue, Renn's physical strength is magnified. After transforming into Go-on Blue, Renn says, "Just Correct!! Go-on Blue" (ズバリ正解!!ゴーオンブルー Zubari Seikai!! Gōon Burū?). With the Mantan Gun in Rod Mode, he can perform the Go-on Drift (ゴーオンドリフト Gōon Dorifuto?). With the Mantan Gun in Gun Mode he can perform the Sniper Shoot (スナイパーシュート Sunaipā Shūto?). With the Garage Launcher (ガレージランチャー Garēji Ranchā?) he can perform Launcher Starter (ランチャースターター Ranchā Sutātā?) and Jumping Attack (ジャンピングアタック Janpingu Atakku?).

Encountering the Gekiranger, the Go-Ongers lose the Engine Souls to the Gaiark and Meka. With Retsu Fukami and Gou Fukami's help Renn and Hanto manage to gain Geki. With Engine-Ken, a new type of Geki fighting fist, Renn was able to access his beast spirit (which turned out to be Bus-on). With this he performs On On Dan, where Bus-on, apart of his Engine Soul attacks, as a manifestation of will.

Shinkenger vs. Go-Onger

To be added Samurai Sentai Shinkenger vs. Go-Onger: GinmakuBang!!

Renn in Shinkenger


Legend War

A few years later, Renn fought alongside not only his own team, but every single Sentai ranger in existence, against the Empire of Zangyack when it attacked the Earth in the Great Legend War. After fighting against hundreds of Gormin and their Zgormin commanders. AkaRenger noticed the fleet moving towards them, he gathered all the Rangers together and gave them the order to sacrifice their powers to wipe out the first invasion's armada. Ep. 1: The Space Pirates Appear Gokaiger Goseiger Super Sentai 199 Hero Great Battle

Farewell Space Pirates

After the defeat of Ackdos Gill, the Gokaiger returned all the Ranger Keys to the former Sentai heroes. Renn and his team have their powers again. Final Ep.: Farewell Space Pirates

Super Hero Taisen

Dimensional wall - Gekiranger, Go-Onger, Gorenger, Goseiger, Shinkenger

The Go-Ongers, alongside the Gekirangers, Gorengers (bar Akarenger), Goseigers, and Shinkengers, emerge through a dimensional wall.

Renn, alongside his team (the Go-On Wings were absent), among the majority of the Super Sentai heroes, was caught up in the "Super Hero Taisen" incident which eventually resulted in the Super Sentai teams and Kamen Riders joining forces to defeat both Dai-Zangyack and Dai-Shocker. Kamen Rider × Super Sentai: Super Hero Taisen


Kozukozu Mita cosplays as Renn in the seventh episode of Hikonin Sentai Akibaranger: Season Two. Ep. 7: Delusional Spy

Video Game appearances

Super Sentai Battle: Ranger Cross

Go-On Blue appears with his team in Super Sentai Battle: Ranger Cross.

Super Sentai Battle: Dice-O

Go-On Blue

Go-On Blue as depicted in Super Sentai Battle: Dice-O.

  • Profile
Renn Kousaka/Go-On Blue: to be added

Super Sentai Battle Base

Go-On Blue is among the vast pantheon of Rangers which are avaliable in the mobile game Super Sentai Battle Base.

Go-On Blue


Go-On Blue



Ranger Key

Go-On Blue Ranger Key

The Go-On Blue Ranger Key.

The Go-On Blue Ranger Key (ゴーオンブルーレンジャーキー Gōon Burū Renjā Kī?) is Renn Kousaka's personal Ranger Key and what became of his powers after he along with the rest of the 34 Super Sentai sacrificed their powers to end the Great Legend War.

This key along with the majority of the Ranger Keys were collected by the Red Pirates and later used by the Gokaigers. The Go-On Blue Ranger Key was mainly used by Joe Gibken (Gokai Blue), who used it to fight as Go-On Blue.

After Zangyack were finally defeated, the Gokaigers gave the Ranger Keys back to their rightful owners. It is presumed that Renn received his key and became Go-On Blue once more.

Behind the scenes


Renn Kousaka is portrayed by Shinwa Kataoka (片岡 信和 Kataoka Shinwa?). As a child, he is portrayed by Shunpei Ijuin (伊集院 竣平 Ijūin Shunpei?). As Go-On Blue, his suit actor was Yoshifumi Oshikawa (押川 善文 Oshikawa Yoshifumi?).

Dub names

In the Korean dub of Go-Onger entitled Power Rangers Engine Force, which aired in South Korea, Renn keeps his name, while his Ranger designation is Engine Blue.


See Also

External links

Blue Rangers

Secondary Rangers
NinjamanGunmazinSignalmanIsshuuRamirezYuko Fukui
EAGLE agentDummy Dia JackDeathdark BlueGinga BlueShadow Blue SwallowGolem
Previous TenmaRangerCopy TenmaRangerShoji's grandsonAyameZokuBlueNeziBlue
Copy TimeBlueCopyBlueShade GaoBlueWendinuFake HurricaneBlueFake KuwagaRaiger
AyameganezumiEvil MagiBlueVrilEvil Bouken BlueKarthRyuzaburoRyujiDDai-kun

Power Sets
AorengerDia JackBattle FranceDenziBlueVulSharkGoggleBlueDynaBlueBlue3ChangePegasus
Blue FlashBlue MaskBlue DolphinBlue TurboFiveBlueBlue SwallowTriceraRangerTenmaRangerNinjaBlue
OhBlueBlue RacerMegaBlueGingaBlueGoBlueTimeBlueGaoBlueHurricaneBlueKuwagaRaigerAbareBlue
DekaBlueMagiBlueBouken BlueGekiBlueGo-On BlueShinken BlueGosei BlueGokai BlueBlue Buster
Blue GorillaKyoryu BlueKyoryu CyanDeathryugerKyoryu NavyToQ 2gouAoNingerZyuoh Shark


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