#37 "Ditto's Mysterious Mansion"

    Ash and his friends find themselves in the House of Imité, run by Duplica and her Pokémon, a Ditto. Ditto can transform into a replica of any other Pokémon, and Ash thinks this is stupid as it can't learn real attacks. So Duplica challenges him, and two Bulbasaurs fight each other, Duplica's winning. Ash realises that Ditto can duplicate attacks too, and is impressed, if a little sore at losing to a 'fake' Bulbasaur. Ditto's transformation is imperfect, however, as its face stays the same. Duplica, who likes to imitate Pokémon and perform with Ditto, couldn't impress the crowds because Ditto couldn't transform perfectly.

    Team Rocket appear and steal Ditto. James wants to make Ditto transform into a Dratini to fool the boss and impress him. Ditto does some transformations for them, but its transformations would not fool anybody, it's obviously still a Ditto. Team Rocket gets angry and threatens it, so terrified, it manages to successfully transform perfectly. Duplica and Team Ash, imitating Team Rocket, show up to take Ditto back, and Duplica is happy that Ditto can transform. She has Ditto turn into a cannon which destroys Team Rocket's hot air balloon and sends them off...