Ryudamon

Ryudamon is a Rookie Level Beast Digimon. He is one of the naturally born X Digimon. He has an old interface on his forehead and is assumed to be a former "Prototype Digimon". He follows the Bushido code. He wears an expensive Japanese-styled armour on his body that, despite his heavy defensive powers, can allow him to jump onto the enemy's chest daringly and fight via light movements. He is a master of attacking with the spirit of a samurai and isn't afraid of any powerful enemies. It's said that his Digi-core is carved with the battle data of both a military commander and a dragon of Japanese myth; at the time of being experimented on, he was said to digivolve quickly into a powerful Digimon.

Digimon Chronicle
Ryudamon is Yuuji Musha's partner. He eventually digivolves to Owryumon and battles against Gallantmon of the Royal Knights but is defeated by Gallantmon X.

Digimon D-Cyber
Ryudamon is the partner of Masuken Kana, and was originally a Gaiomon. However, he was defeated by DexDorugoramon, and reverted to a Digiegg. After temporarily Death-X digivolving into DexDorugamon, he was reborn as Ryudamon, who called Masuken "master". He would later become Hisyarumon, and later Owryumon.

Attacks
 * Katana Attack (居合刃): He jumps at the enemy, firing iron blade projectiles from his mouth.
 * Kabuto Gaeshi (兜返し): He deflects his enemy's attack with his armored helmet using the power of his Digi-Core.