Pikachu (Japanese: ピカチュウ, Hepburn: Pikachuu) (PEE-ka-choo) is an Electric-type Pokémon introduced in Generation I. Pikachu is renowned for being the most well-known and recognizable Pokémon. Pikachu are usually friendly creatures that love to be cuddled. They love having their tails rubbed, especially at the base; they also like being stroked. However, if threatened or angered, this Pokémon can be quite aggressive. It is so big it's thighs can crush a skull. Its strongest attack is Thunderbolt.