Then, Team Rocket appears and tries to steal Ditto, in the hopes that they can get it to transform into Dratini and present it to their boss as a Legendary Pokémon. Using Weezing’s Smokescreen, they are able to escape with Ditto. Once they are away from the house, Jessie and James try to test Ditto’s power by having it turn into a Dratini from a picture in a book that they have. However, Jessie suddenly says that they should have a little bit of fun before handing Ditto over to the boss. She asks Ditto to transform into what a certain boy would look like if he were an adult, and pulls out a photo frame. James and Meowth then try to get Jessie to show the picture to them, but she refuses. Ditto agrees, and transforms into a picture of a man with blue hair, though it has Ditto’s face. When it licks Jessie’s face, James and Meowth laugh hysterically, but Jessie responds by furiously slapping them unconscious. She then commands Ditto to become a Dratini, but instead, it transforms into a book, which aggravates Jessie even further.
(Source: Bulbapedia)
