Grumpig is a bipedal, pig-like Pokémon. It has large ears, a pink snout, and oval eyes. The lower half of its body is black, while the upper half is purple. There are black markings on its ears and arms, while its hands and feet are purple. Its tail is pink and curly. There appear to be three shining black pearls on its body: two on its head, and another on its mid-section where the black meets the purple. These pearls are used to amplify its psychic powers, which allow it to control its opponents. The dance it performs while using its powers is very popular. It lives on mountains.
Grumpig, the Manipulate Pokémon. Grumpig is the evolved form of Spoink. Using its dark pearl to magnify its psychic waves, it is able to manipulate its opponents easily.
In the manga
In the Pokémon Adventures manga
In VS. Grumpig I of the Ruby & Sapphire arc, a herd of wild Grumpig attacked Ruby and Sapphire, only to be promptly defeated by the former's Mightyena, Nana. This would turn out to be a critical development in the manga's plot, as it is through this that Sapphire grows aware of Ruby's real strength.
Grumpig uses the black pearls on its body to amplify its psychic power waves for gaining total control over its foe. When this Pokémon uses its special power, its snorting breath grows labored.
Grumpig uses the black pearls on its body to wield its fantastic powers. When it is doing so, it dances bizarrely. This Pokémon's black pearls are valuable as works of art.
It stores power in the black pearls on its forehead. When it uses psychic power, it performs an odd dance step. Its style of dancing became hugely popular overseas.
Grumpig shares the same species name with Gothorita. They are both known as the Manipulate Pokémon.
Origin
It is possible the inspiration for Grumpig came from the biblical phrase "do not cast your pearls before swine, lest they trample them under your feet." The pearls were supposed to represent wisdom given to an audience who wouldn't appreciate the teachings. Grumpig and Spoink appear to instead use those pearls of wisdom to enhance their mental powers. It is also based on a pig.
Name origin
Grumpig may be a combination of grump and pig. Grump may also be a corruption of grunt, a sound that pigs make.
Boopig may be a combination of ブーブー būbū (the sound of grumbling or oinking) or 豚 buta (pig) and pig.