The mascot character of the Pokémon franchise Pickachu or Pika is covered in yellow fur with two horizontal brown stripes on its back. Pikachu is cute, small, and short, with some similarities with a chubby rodent. In games, it evolves from Pichu when leveled up with high friendship and it can further evolve into Raichu when exposed to a Thunder Stone. When several cute Pikachu Pokémon gather, their electricity can cause lightning storms. But in general, they are friendly creatures that love to be cuddled. A Pokémon Pikachu Running progress bar for YouTube.