Ryuu Hoshikawa

"DynaBlack!"

Ryuu Hoshikawa (星川 竜, Hoshikawa Ryū) is DynaBlack.

Biography
A descendant of Iga ninjas, skilled at 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.

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. Kaijou 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.

Mecha

 * Dyjupiter (shared with Red, Blue, Yellow, and Pink)
 * Dyna Mobile (shared with Blue)

Arsenal

 * Dyna Brace
 * Dyna Rod
 * Attack: Black Star Flash
 * Dyna Punch
 * Cross Cutter
 * Battle Tector

Attacks

 * Strong ShowerDynablack_battletector.jpg
 * 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)

Ranger Key
The DynaBlack Ranger Key (ダイナブラックレンジャーキー) 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.

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

Trivia

 * He will later share his surname with the Hoshikawa siblings of Chikyuu Sentai Fiveman. Ironically, Fiveman also has a Black Senshi.
 * 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 or Hurricaneger).