Jellymon (ジェリーモン) is a rookie, Data attribute, Mollusk Digimon. It is a pink skinned humanoid and appears clothed. Its tentacles/"hair" resembles a blue jellyfish.

Its whole body is flexible, which allows it to retract its body into its head, and it usually lives with just its head showing. While it is in this form, it is light enough to fly just by being blown by the wind. It prefers beautiful environments and acts, and once it sees foul behavior, it will free its body in anger and turn into its Battle Mode.

In Digimon Ghost Game, she is the partner of Kiyoshiro Higashimitarai, whom she calls "darling". She's strong-willed but also trollish and prone to trouble.

• Fresh: Puyomon
• In-Training: Puyoyomon
• Rookie: Jellymon
• Champion: TeslaJellymon
• Ultimate: Thetismon
• Mega: Amphimon