Pokémon: Pikachu, What's This Key?

Pikachu and the other pokemon play a game of hide and seek.

While playing in the ocean near a tropical resort, Pikachu & Co. get in a scuffle with Team Rocket's Pokémon. This scuffle causes the Pokémon to wind up miles away in an Ice-covered Paradise. However, when they get there, they are seperated soon find that certain Pokémon in the area require their assistance. Will they be able to reunite with their friends and help these Pokémon out?

While being let out to play by their trainers, Pikachu and Piplup wind up separated from their Pokémon friends and wind up travelling with a Skitty into a strange dimension, unknowingly followed by Croagunk, Team Rocket's Pokémon and a Marill that's desperate to have someone hear her sing...

Summer! Everyone is full of energy today. Pikachu and friends play with their beach ball! Pikachu and Pochama are chasing and diving in a river when they drift over and see a metropolis. "Where are we?" they said, searching from the rooftops of the buildings. Suddenly, with a bang, jagged-eared Pichu and Muchul collide. The two argue in an angry mood. "Sparkling is gone! It was the present to give to Kireihana..." Besides, today is her birthday!? This is troublesome! We must hurry and search. Moreover, Nyarth-tachi are aiming too! Thus, the Great Sparkling Search begins!