Pikachu and friends are having a picnic when they discover a Ghost Festival. They walk in it only to find out that it is haunted by a bunch of Ghost Pokemon and other Pokemon such as Koffing, Lickitung, Ditto, and Cubone. Meowth also discovers this Ghost Festival and gets scared to death. Pikachu makes friends with the ghosts, and they work together to shoo Meowth out of the festival.

Source: pokenightmare.com

Note: Originally shown on All Nippon Airways flights.

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Parent story: Pocket Monsters Advanced Generation