Pokémon Yellow Version/Changes from Red, Green, and Blue/Location Changes


 * In some locations, Trainers who reference characters from the anime replace previous Trainers.
 * On, a and  are changed to reference Joe and Giselle.
 * On, a was replaced with a  to reference A.J.
 * Two extra trainers (a and another ) were added in Viridian Forest.
 * The Summer Beach House, where Pikachu's Beach can be played, was added to.
 * In the Cinnabar Gym, the player must now take the quiz machines' quiz before they can battle the Trainer stationed nearby.
 * The Bicycle theme does not play on and in.
 * Cerulean Cave has a completely different layout.
 * Changes were made to the locations and availability of Pokémon.
 * Some changes may have been made to reinforce the anime-based setting.
 * and are removed from all availability in the wild, leaving only the player's starter Pikachu (who cannot evolve).
 * In the anime, catches a  and a  in Viridian Forest. In the game, though both  and  were available in previous games, only Caterpie is now.  and  are also both added to Viridian Forest.
 * The player can now also obtain all three of the original Kanto starter Pokémon (at Cerulean City,, and Vermilion City), just like Ash in the anime.
 * The Pokémon that uses (,, , and their evolutions) are no longer available to be caught in the wild.
 * In-game trades are changed to different Pokémon, and two trades are removed from the game.
 * and, previously available only through in-game trades, now appear as wild Pokémon.
 * , previously available on the routes north of Cerulean City, has now been relocated to the four routes surrounding Saffron City.
 * A trash can was added next to the table at Professor Oak's Laboratory.