Pokemon pikachu evolution

Pikachu has four evolution stages. The stages are:

Stage 1 (First): Pikachu is the first stage of the Pokémon species line.

Stage 2 (Second): To evolve Pikachu, you need to obtain a Thunder Stone and use it on your Pikachu.

Stage 3 (Third): Raichu is the third stage of the evolutions. Pikachu evolves into Raichu when exposed to a Thunder Stone.

Mega Evolution (Final): Mega Raichu is the final stage of the evolutions. However, this can only be used in battle, and will revert back to the Third Evolution after the battle is over.

To evolve Pikachu, you need to follow these steps:

1. Catch Pikachu or obtain it through other means.
2. Train your Pikachu to increase its level.
3. Obtain a Thunder Stone.
4. Use the Thunder Stone on your Pikachu to evolve it into Raichu.

Keep in mind that Pikachu cannot learn new moves after evolving, except via a TM.