In the sequel to PokéPark Wii: Pikachu's Adventure, Pikachu comes to a new PokéPark with his best friend Piplup. They hear of an area there called Wish Park, full of fun and adventure. However, they find that Wish Park is actually a place where Pokémon are trapped and cannot leave. Furthermore, Reshiram and Zekrom have seen that a dark omen is about to fall on the PokéPark.
Playable Pokémon include Pikachu, Snivy, Tepig, and Oshawott. The player switches out members of their team to choose between them. Skill games return, Chase and Battle. During Battle, the player cannot switch Pokémon. Friend Pokémon can be used for aid once during a battle. Attractions also return, but are much less focused on and are much fewer in number.