Mythical Chi Beast RyuseiOh

"Mythical Summoning! Ryuuseioh!"

Mythical Chi Beast RyuseiOh (気伝獣龍星王, Kidenjū Ryūseiō, Dragon Star King) is the Mythical Chi Beast of RyuRanger. At first, Kaku had to use his chi energy to control RyuseiOh, until Lin of the Heavenly Wind Star was transported to China to find the five Heavenly Treasure Lai-Lai Jewels and revived the other four Mythical Chi Beasts.

First introduced in episode 1 to prevent Ryo from being captured by Baron String. RyuseiOh can breath streams of fire from his mouth called Big Blaze (大火炎, Dai Kaen). It forms the core of Dairen'oh with the other Mythical Chi Beasts attaching to it as armor. Helped out in Hyakujuu Sentai Gaoranger vs. Super Sentai.

Mythical Chi Warrior RyuseiOh
"RyuseiOh, Warrior Change!"

First introduced in episode 2, RyuseiOh has the ability to transform into a humanoid form called Mythical Chi Warrior RyuseiOh (気伝武人 龍星王, Kiden Bujin Ryūseiō), or Warrior Mode for short, with the command "Warrior Change" (武人変化, Bujin Henge). In Warrior Mode, RyuseiOh's armed with a staff weapon similar to the Dairangers' Dairen Rods called the Mythical Chi Flying Dragon Rod (気伝飛龍棍, Kiden Hiryū Kon). It's attacks include:


 * Windmill Kick : Planting its rod into the ground, RyuseiOh spins around it to roundhouse kick opponents.
 * Great Windmill (大風車, Dai Fūsha): RyuseiOh rapidly spins the Flying Dragon Rod, creating a gust of wind that immobilizes enemies.  The attack can also be used to kick up loose debris to pummel enemies with.
 * Great Windmill Slice (大風車斬り, Dai Fūsha Kiri) : RyuseiOh's finisher where it charges forward while spinning its Flying Dragon Rod and smashes the opponent with it, typically done after performing the Great Windmill technique first.
 * Super Certain Kill: Heavenly Great Windmill (超必殺・天空大風車, Chō Hissatsu: Tenkū Dai Fūsha) : An alternate version of the Great Windmill Slice where RyuseiOh mounts onto the Heavenly Qi Palace and is carried into the sky before leaping off, using the momentum of its fall to increase the power of the Great Windmill Slice.

Ranger Key
Through the powers of the Phantom Ranger Keys, the Gokaigers can re-create and summon the Greater Power of any Super Sentai team in existence. In Tokumei Sentai Go-Busters vs. Kaizoku Sentai Gokaiger: The Movie, the Phantom Ranger Keys reproduced the Greater Power of the Go-Busters, which allowed their respective mechas to transform to other previous Super Sentai mechas through Megazord keys. Hiromu on board CB-01 used his Megazord key to transform Go-Buster Ace into Mythical Chi Warrior RyuseiOh.