Otamamon X

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)" 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".

Attacks
 * 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.

Attacks
 * Lullaby Bubble
 * Smiley Headbutt

Design
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.

Etymologies
Official romanization given by the Digimon Reference Book and used in the franchise. Some media modify the "(X-Antibody)" by removing the parentheses, shortening it to "X", or leaving it out entirely.
 * Otamamon (X-Antibody) (オタマモン（X抗体）)
 * (Ja:) Otamajakushi (オタマジャクシ).
 * X-Antibody.