Ra-Dorudo-Gu is a condor-like Gurongi armed with a pair of tonfa, Dorudo assumed the form of a man in black with white robes on him, he is labelled by the police as Unidentified Life Form #47 and B#9. He carries an abacus which he uses to count the number of kills by the Go Group Gurongi until Ichijo destroyed it with a Marking Bullet, forcing the Gurongi to reveal his true form in a hit and run attempt to kill Ichijo. However, as a result, Dorudo lost his purpose as the game's overseer and is forced to fight for his life against Gadoru as Ichijo arrives to the scene. Dorudo eventually attempts to retreat from the fight and is pursued by Sugita and Sakurai who shoot him dead with the completed Nerve-Breaking Bullets.
Kamen Rider Decade
In Kamen Rider Decade, he is labeled Unidentified Life Form #8. He fights Kuuga and attempts to flee before being destroyed by Kuuga who uses Pegasus Form's Blast Pegasus attack