This Yamper is an electric-type Pokémon owned by Koharu.


Yamper is friendly, as it befriends Pikachu whom it met at first sight.


SS002 5

Yamper meeting Pikachu and befriends him.

Yamper first appeared where it saw Ash at Sakuragi Institute. Ash then attempted to befriend it, but Yamper electrocuted him instead, causing him to faint. Yamper quickly befriended Pikachu, before its trainer Koharu arrived and walked away. Yamper then reappears after Ash and Go got back their adventure with Lugia.[1]

Known moves

  • Using Thunderbolt
Move Type Debut
Thunderbolt electric SS002


  • Yamper is the first secondary major electric-type Pokémon owned by one of Ash’s friends who isn’t part of Pikachu family.



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