Team Rocket encounters the Ghost Pokémon in a haunted tower while setting a trap for Ash and his friends, and end up getting frightened away. Ash and Pikachu enter alone since his friends are afraid to go in. Inside, he and Pikachu are the victims of pranks by a Gastly, Haunter, and Gengar looking for playmates. After being crushed under a falling chandelier, Haunter turns Ash and Pikachu into ghosts where they have some fun, though Ash asks them to send him back after seeing Misty and Brock cry over his lifeless body. Ash and Pikachu are brought back to life and Haunter decides to follow Ash as his new Pokémon.
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