Pokemon Diamond & Pearl Atsumare! Pokemon Hoshi Matsuri

Satoshi, a boy aiming to be the world's best Pokémon Master, his partner Pikachu, and his friends Hikari and Takeshi. Today is the "Pokémon Star Festival," and various Pokémon are gathering. Satoshi and his friends decide to join in! The festival hosts seem shady, and our heroes think they've seen them before. As everyone enjoys events like the Pokémon Quiz and nighttime star gazing, the Pokémon start disappearing. Even Pikachu goes missing! Can Satoshi and Pikachu escape safely?