Imposert

Imposert is a Dark-type Pokémon introduced in Generation Neo-I.

It evolves into Oppanzer starting at level 33.

Biology
Imposert consists of three Pokémon dwelling in a large, sac-like pouch. These Pokémon are small, black, rodent-like creatures with massive, peering eyes. Their tails intertwine behind them, hoisting them up by latching onto a tree, street lamp, or other tall object.

There are more female Imposert than male ones, with a gender ratio of 3:1.

Triva
Imposert may be based off of small rodents and primates such as opossums, bush babies, and aye-ayes. Specifically, they seem to reference the marsupial concept of young dwelling in their mother's pouch.

Imposert may be a combination of impose and the Ghanaian term aposor, given to members of the bush baby family because of their firm grip on branches. It may also incorporate assert.