Pika

Pika (Japanese: ピカ Pika) was the fourth Pokémon shown to be obtained by Red in the Pokémon Special manga.

History
Red first encountered Pika in Pewter City where he was seen causing trouble for the townsfolk by stealing and eating food from the market. Red battled the troublemaker with Saur, and captured him after putting him to sleep with Sleep Powder. Despite his capture, Pika was antagonistic towards Red and would constantly shock him when given the chance.

Even though he knew Pika wouldn't listen to him, Red decided to use him in his first gym battle against Brock due to the fact that Poli and Saur were exhausted and no Pokémon Center was available at the time. Red used Pika in his battle against Brock and he was surprisingly able to defeat Brock's Onix with one attack and winning Red the Boulder Badge, despite this, Pika still continued shocking Red.