Pikachu no Obake Carnival is a special anime that premiered in summer 2005.

About the production: there is 1 episode of about 20 minutes and its current status is "finished".

Its main genres are action, adventure, comedy, fantasy and supernatural, with themes such as Kids, Animals and Ghost.

On AniList, Pikachu no Obake Carnival has an average score of 58%, an average score, and appears on 2,150 users' lists.

Pikachu and his friends have a picnic when they discover a Ghost Festival. The walk in to it, and find out that it is haunted by Ghost Pokemon and other Pokemon such as Koffing, Lickitung, Ditto, and Cubone. Meowth also discovers the Ghost Festival and gets scared out of his mind. Pikachu makes friends with the ghosts, and they work together to make Meowth run out of the Festival. (Source: Anime News Network)

Official synopsis from AniList.