Pikachu is a Pokémon from Kanto, Hoenn, Sinnoh, and Kalos, and is #25 in the PokéDex. It evolves from Pichu when it has high friendship, and evolves into Raichu after being exposed to a Thunder Stone.
Pikachu is a very rare Pokémon, and it commonly lives in forests, such as Viridian Forest. It uses electric abilities, such as the famous move Thunderbolt, to ward off its prey. But Pikachu doesn't even have prey!
Pikachu is a well-known Pokémon among many anime fans, and Chatango is one of the many places where Pikachu is recognized, as well as tons of other Pokémon. There is even a Chatango Account for Pikachu. Pikachu is also roleplayed in many Pokémon Roleplay Chatrooms.