Octillery is a red, cephalopod-like Pokémon with large, round eyes and a turret-like mouth. There are yellow bumps on its rock-hard head and yellow suction cups on each of its eight tentacles. These suction cups and yellow bumps are smaller on a female Octillery. It uses its tentacles for manipulating objects and the suction cups give it strong gripping power. Because of this, it is very hard for it to be blown away. Octillery is the only known Pokémon that learns Octazooka naturally.
Octillery is a relaxed Pokémon who loves fuss from its Trainer. In the wild, it will spurt ink at predators to protect its young from danger. Even though it is more docile when domesticated, it can be very stubborn at times in the wild. It instinctively sneaks into rocky holes, and if it gets sleepy, it steals the nest of a fellow Octillery. It sometimes sprays ink on prey by sticking out only its mouth, and its suction cups hold prey tightly. Octillery is normally found in oceans.
Octillery, the Jet Pokémon. Will instinctively sneak into rocky holes. It locks onto opponents with its leg suckers, then rams them with its rock-hard head.
Octillery grabs onto its foe using its tentacles. This Pokémon tries to immobilize it before delivering the finishing blow. If the foe turns out to be too strong, Octillery spews ink to escape.
It ensnares its foe with its suction-cupped tentacles before delivering the finishing blow. If the foe turns out to be too strong, it spews ink to escape.
Octillery grabs onto its foe using its tentacles. This Pokémon tries to immobilize it before delivering the finishing blow. If the foe turns out to be too strong, Octillery spews ink to escape.
Octillery is the only Pokémon to have an attack specifically named after it; in Japanese, "Octazooka" is known as "Okutank Cannon," named after its Japanese name.
Origin
Octillery is based on an octopus. It also has some basis on a tank or a wheeled cannon.