Blissey has a large egg shaped body, one half pink and the other white. The hair-like growths she had as a Chansey have curled up on her head. She has white, wing-like appendages where her arms meet her body and around her middle. She seems to have lost the tail she had as a Chansey. Like her pre-evolutions, she has a pouch on her stomach that holds an egg.
Blissey is a female-only species with no male counterpart.
It is said that anyone who takes one bite of a Blissey's egg will become unfailingly caring and pleasant to everyone.
Like many other Normal-types, Blissey can learn moves of many elemental types. Itt can learn the three elemental punches as well as the rare Drain Punch via a Move Tutor.
Blissey is an extremely compassionate Pokémon by nature. If she sees a sick Pokémon, she will attempt to nurse the injured Pokémon back to health. Blissey's fluffy fur allows her to sense feelings of sadness. Upon sensing any sadness, this Pokémon will race to the source of the sadness, no matter the distance, and share her egg of happiness that instantly makes a person smile.