Pikachu

 is a support Pokémon that can be unlocked in Magikarp Jump.

Pikachu is unlocked upon obtaining the after completing the Friend League.

Skill
Activating Pikachu's skill provides an immediate, small JP boost. Litten & Greninja both award JP but both award it in bigger quantities than Pikachu.

Support Pokémon(s) with Similar Skill

 * Spell Tag.PNG Mimikyu - Awards a little JP
 * Flame Plate.PNG Litten - Awards some JP
 * Shell Bell.PNG Greninja - Awards lots of JP

Random Encounters
Pikachu is featured in the random encounter: Tag Battle?