Nidorina, the Poison Pin Pokémon. Nidorina is a quadruped, light-blue Pokémon with darker blue patches. It has red eyes, large, spiny ears, and has two pointed teeth protruding from its upper jaw. It possesses large poison spikes, which it retracts when with a group and while resting in its burrow. Its paws have three claws each, and it is able to stand on its hind legs. The hind legs are longer and thicker than its forelegs. It has a stubby tail.