|Partners||Takeru "T.K." Takaishi|
|Voice actors||(Ja:) Miwa Matsumoto (Adventure), Kaoru Shiomi (Adventure, Village of Beginnings), Tailmon-betsu, Yukiko Hanioka (Frontier), Umeka Shoji (Xros Wars)|
(En:) Peggy O'Neal, Dorothy Elias-Fahn (Frontier)
Poyomon is a Slime Digimon whose name is derived from the onomatopoeia for toddling (ぽよぽよ Poyopoyo?), and as such it is a baby. With a translucent body, it is a Digimon Baby that drifts through the "Net Ocean" like a jellyfish. As it has the most primitive structure among the Digimon discovered to date, it has been showered in attention as the "Missing Link", the key to solving the mystery of the origin of Digimon, by the scholars and enthusiasts studying the roots of Digimon.
Several Poyomon are seen in Primary Village.
Digimon Adventure 02
A Poyomon is the only Digimon kind to Ken when he comes looking for Wormmon at Primary Village.
Some Poyomon are at the Great Trailmon Race. Other Poyomon are among the babies in the Village of Beginnings and stand up to fight the Royal Knights when they attack. Poyomon are among the newly-hatched Digimon at the Yellow Moon after the Digital World's destruction, and one bonds with Koichi Kimura.
Digimon Frontier: Island of Lost Digimon
Digimon Data Squad
A Poyomon was among the Digimon caught in the vortex that appeared when humans were deleting Digimon.
Digimon World DS
Digimon World Dawn and Dusk
Poyomon is #004 in Digimon World Dawn and Dusk, and is a Tank-class Aquan species Digimon with a resistance to the Water element and a weakness to the Machine element. Its basic stats are 70 HP, 62 MP, 37 Attack, 38 Defense, 31 Spirit, 26 Speed, and 10 Aptitude. It posseses the Fog Mantle 1 trait. Poyomon can be found in the Loop Swamp.
Digimon Story: Lost Evolution
Poyomon is #004, and is an In-training level, Defense-class, Aquan species Digimon with a resistance to the Water element and a weakness to the Thunder element. It possesses the Confusion Protection trait.
It dwells in the North Marine.
Poyomon can be hatched from the Blue Egg.
Digimon World Championship
Poyomon appear in the Foxkids DigiCannon game.
- Kyouryoku San no Awa (強力な酸の泡? lit. "Powerful Acid Bubbles"): Spits powerfully acidic bubbles from its mouth to defend itself from intruders.