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Ryuu Hoshikawa

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This article is about a/an ranger in Kagaku Sentai Dynaman.
―DynaBlack's roll call[src]

Ryuu Hoshikawa (星川 竜 Hoshikawa Ryū) is DynaBlack (ダイナブラック Daina Burakku) of the Dynamen.



A descendant of Iga ninjas, skilled in the art of ninpou and invisibility and never allowing himself to miss a day of training. Comedic and cheerful, children take a liking to him. A 22 year old astronomer, he dreams of contacting and befriending alien lifeforms.


Dynaman (Turboranger special)

Dynaman come to cheer on the Turborangers.

Ryuu and his team joined up with the other nine Sentai to stand behind the newest Sentai, the Turborangers, as they faced off against the Hundred Boma Tribes. Counting on You! Turboranger

Gaoranger vs. Super Sentai

DynaBlack is among the Sentai warriors seen in clips when Daimon Tatsumi (GoYellow) lectured Kai Samezu (GaoBlue) about the past Sentai technical warriors and their fighting spirit. Hyakujuu Sentai Gaoranger vs. Super Sentai


Legend War

Years later, Hoshikawa 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. The DynaBlack powers are later utilised by Don Dogoier via the Ranger Keys. Ep. 1: The Space Pirates Appear Gokaiger Goseiger Super Sentai 199 Hero Great Battle

Farewell Space Pirates

After the Gokaigers defeated the second Zangyack invasion, Marvelous returned the Ranger keys to the Super Sentai, it is assumed Ryuu and his team have their powers back. Final Ep.: Farewell Space Pirates

Super Hero Taisen

Dimensional wall - Flashman, Changeman, Bioman, Dynaman, Turboranger

The Dynamen, alongside the Flashmen, Changemen, Biomen, and Turborangers, emerge through a dimensional wall.

Ryuu, alongside his team, 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. During the final battle, he was seen fighting a Gormin, a Zgomin, and Uni-Armadillo Yummy. Kamen Rider × Super Sentai: Super Hero Taisen

Stage Show appearances

Dynaman Stage Show at 3 Heroes Korakuen Yuenchi

In a stage show where the Dynaman are seen fighting Tailed-People Clan Jashinka Empire, SharivanIcon-crosswiki and Gavan arrive to assist the Dynaman.

Dynaman Stage Show at Super Hero Korakuen Yuenchi

In a stage show where the Dynaman are seen fighting Tailed People Clan Jashinka Empire, Goggle Red, Goggle Black, GogglePink, Ultraman TaroIcon-crosswiki, Gavan, SharivanIcon-crosswiki, VulPanther, and Kamen Rider StrongerIcon-crosswiki arrive to assist the Dynaman.

Video Game appearances

Super Sentai Battle: Dice-O

DynaBlack (Dice-O)

DynaBlack as depicted in Super Sentai Battle: Dice-O.

  • Profile
Ryuu Hoshikawa/DynaBlack: to be added

Super Sentai Battle Base

DynaBlack is among the vast pantheon of Rangers which are available in the mobile game Super Sentai Battle Base, with his Battle Tector being available as well.

Super Sentai Legend Wars

DynaBlack is among the vast pantheon of Rangers who feature in the mobile game Super Sentai Legend Wars.







  • Strong Shower
  • Meteor Kick
  • Black Art of Delivery
  • Hiding in Leaves of Wood
  • Hiding in the Smokes
  • 8 Step Kick
  • Ninja Arts Dance of Thick Fried Tofu
  • Attitude Change Arts
  • Black Spike (original version unused)

Dynablack battletector

DynaBlack Battle Tector



DynaBlack has a spandex suit, with a white main body seen in the legs with a red stripe along the sides, with the torso covered by a black "short-sleeved" shirt with a red stripe down the middle and along the cuffs, similar to the appearance of a baseball jersey. Both his gloves and boots are black in color; while a holster on the right side where he holds his DynaRod and a pin on his left torso with the Dynaman logo on it. His belt surrounds his waist with a buckle in the shape of the DynaBrace. His helmet is black, with a black visor that rises up in the middle appearing like glasses and a gray mouthpiece. The top of the helmet has a silver stripe rising up triangularly with a yellow logo inside: the top with a "II" symbol (the Roman Numeral "2") and the letters "DB" (which stands for "DynaBlack"). The logo and the visor are separated by a raised silver "lid" similar to a baseball cap.

Ranger Key

DynaBlack Ranger Key

The DynaBlack Ranger Key.

The DynaBlack Ranger Key (ダイナブラックレンジャーキー Daina Burakku Renjā Kī) is Ryuu Hoshikawa'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 DynaBlack Ranger Key was mainly used by Don Dogoier (Gokai Green), who used it to fight as DynaBlack.

The Dynaman keys, along with all the Ranger Keys of the first 33 Super Sentai, were briefly taken by the Black Cross King and turned into Ranger puppets that were fought by the Gokaigers and the Goseigers. The Dynaman keys were defeated by Gokai Red. Gokaiger Goseiger Super Sentai 199 Hero Great Battle

After Zangyack were finally defeated, the Gokaigers gave the Ranger Keys back to their rightful owners. Ryuu received his key and became DynaBlack once more. Final Ep.: Farewell Space Pirates

Behind the scenes


Ryuu Hoshikawa is portrayed by Jyunichi Haruta. As DynaBlack, his suit actors were Tsutomu Kitagawa (喜多川務 Kitagawa Tsutomu), as well as Jyunichi Haruta himself.


  • Ryuu's surname, Hoshikawa, is shared with the five sibling warriors of Chikyuu Sentai Fiveman
  • Ryuu is the first "official" ninja Sentai hero (the heroes of Ninja Captor were part of a revoked Sentai, while Ryuu existed many years before official ninja-themed teams such as Kakuranger, Hurricaneger or Ninninger).
    • He appeared nearly a year on air before Ryo MurasameIcon-crosswiki (Kamen Rider ZX), but was preceded by the Rider ninja by a year due to a manga appearance in 1982.
    • He is unique in being the only ninja who is associated with the color black
  • While not the first Black Ranger, Ryuu is the first Black who has no association with the color Green, making him the first "pure" Black Ranger.
    • Shiro Akebono had a black costume but had many elements associating him with green.
    • Kanpei Kuroda is the first official Black, but he derives his powers from the emerald, a green gemstone.
  • During filming of Gokaiger Goseiger Super Sentai 199 Hero Great Battle, Haruta stated in an interview that he would have rather appeared as Hoshikawa instead of Kuroda, but it would have caused confusion. (his castmate Sayoko Hagiwara appeared for Dynaman instead)


See also

External links

Black Rangers

Secondary Rangers
ShotaVRV MasterBullBlackHyuugaRio
Deathdark BlackGinga BlackGolemNeziBlackCopyBlackShade GaoBlackManmaruba
YousukeEvil Bouken BlackTakeshiIcchanRight

Power Sets
Battle KenyaGoggleBlackDynaBlackChangeGriffonBlack MaskBlack BisonBlack TurboFiveBlack
Black CondorMammothRangerNinjaBlackKingRangerMegaBlackBlack KnightGaoBlackHurricaneDark
AbareBlackBouken BlackGo-On BlackGosei BlackBlack PumaKyoryu BlackZyuoh The World
Oushi Black
Brave Black Dino


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