|This article is about a/an ranger in Choudenshi Bioman.|
|Sentai Show:||Choudenshi Bioman|
|First Appearance:||The Enigmatic Giant Robo Arrives|
|Last Full Appearance:||The Great Gathering of 11 Sentai: The Glorious Opening Collection|
|Number of Episode Appearances:||n/a|
Full list of appearances
Ryuuta Nanbara (南原 竜太, Nanbara Ryūta) is Blue3 of the Biomen. He is a water sportsman who is boyish and adventurous. He also loves to explore and discover new things.
- Age: 18 years old
- Weapons: Super Electron Ear and Elec-Sword
- Attacks: Super Sky Diving
- Actor: Akito Oosuga
- Birthday: July 13, 1961
Do not mistake him for an absent-minded child, though, he is quite level headed and full of determination, as his confrontation with the evil Prince showed. His years of diving have made him very nimble and thus he is very skilled in stealth techniques.
Gaoranger vs. Super Sentai
Years later, Ryuuta 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 Blue Three powers are later utilised by Joe Gibken via the Ranger Keys.
After the Zangyack's final defeat, Marvelous returned the Ranger Keys to their original owners, Ryuuta and his teammates have thier powers once again.
Super Hero Taisen
Ryuuta, 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.
Stage Show appearances
In a stage show where the Bioman are seen fighting Neo Empire Gear and Bio Hunter Silva, Kamen Rider Stronger, Shaider, Kamen Machineman, DynaRed, DynaBlue, Goggle Black, VulPanther, and DenjiGreen arrive to assist the Bioman.
- Biojet 2 (shared with Green and Yellow)
- Super Sky Diving
The Blue Three Ranger Key (ブルースリーレンジャーキー Burū Surī Renjā Kī?) is Ryuuta Nanbara'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 Blue3 Ranger Key was mainly used by Joe Gibken (Gokai Blue), who used it to fight as Blue3.
- When the Gokaigers became the Biomen while fighting Kiaido.
- As part of a bombardment of changes in the final battle with Emperor Ackdos Gill.
After Zangyack were finally defeated, the Gokaigers gave the Ranger Keys back to their rightful owners. It is presumed that Ryuuta received his key and became Blue3 once more.
"Blue Three" (ブルー・スリー) is spelled the same way in Japanese as "Bruce Lee" (ブルース・リー), with the dot moved one over to the right.