Metamon

Metamon is a light-purple or pink, blob-like Pokémon with a simple smiling face, small head nubs and pseudopod-like arms. Though often described as amorphous, its natural appearance is fairly consistent.

Metamon can transform into an exact replica of a physical object or living creature, copying both form and abilities. Individual Metamon vary in transformation skill, but laughing can break the transformation, and relying on memory can cause inaccurate details.