Otamamon X is an Amphibian Digimon and carrier of the X-Antibody. Since its body has become even larger, its vocals have become louder, and the effects of its Special Move "Lullaby Bubble" have strengthened. It is said that because of a certain Mutant-type Mega Digimon, it looked forward to a promising future with its round body and was gifted the gorgeous crown "Prince no Osagari" (プリンスのオサガリ? lit. "Prince's Hand-me-down") and it became difficult to be attacked by the enemy due to its majestic appearance. Furthermore, it also taught Otamamon its Signature Move "Smiley Headbutt".[1]


  • Lullaby Bubble: Sends the opponent into an eternal slumber.
  • Smiley Headbutt: Headbutts the enemy without breaking its smile, but its face still cramps up and its power is weak.


Otamamon X is an altered version of Otamamon that enhances its amphibian traits. It gains a crown on its head and bracelets on its wrists. Its body has also expanded and it has lost its hind limbs while its tail has become more tadpole-like though is still supported by rays.


Otamamon (X-Antibody) (オタマモン(X抗体))

Official romanization given by the Digimon Reference Book and used in Japanese media. Some media format the "(X-Antibody)" without parentheses[2] or leave it out entirely.[3]

Otamamon X (オタマモンX)

Name used in Digimon Collectors.

Notes and References