A dual Water/Ground type Pokémon
introduced in Generation II
. It evolves
starting at level 20.
Wooper resembles an upright, armless axolotl
. Its head is large compared to its body, and it has small, round, black eyes. It has purple, branching gills on either side of its head; the males have more branches in its gills than the females. Wooper stands on two small, round feet, and it has a large, thick tail. On its belly are dark blue curved markings.