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.

Ryudamon has a complete Digivolution line from Fufumon (Fresh) to OwRyumon (Mega).

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 an iron blade projectile from his mouth.
 * Kabuto Gaeshi (兜返し): He deflects his enemy's attack with his armored helmet.