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


 * is the only starter Pokémon the undefined can choose and travels with the player on-screen, outside of a Poké Ball like Ash's Pikachu. It will also cry like Ash's Pikachu in the anime, with its cries now voiced by Ikue Ohtani.
 * This Pikachu cannot be evolved or.
 * The starts with . He will eventually have a different team based around one of Eevee's evolutions depending on how the player fares in the first two battles with the rival (the second being optional), at Professor Oak's Laboratory and.
 * If the player wins both, Eevee evolves into.
 * If the player wins one battle and loses or skips the other, Eevee evolves into.
 * If the player loses or skips both, Eevee evolves into.
 * A minimal friendship system is implemented to track how Pikachu feels about the player.
 * Gym Leaders have different teams, some based on those that appear in the.
 * Level-up learnsets and TM compatibility are altered slightly for certain Pokémon., for example, can now learn via HM02.
 * Support is added for the Game Boy Printer.
 * If the player does not have 500, they can still enter the . The player will have to pay any money they do have and will receive a number of Safari Balls proportional to the amount paid (but at least one).
 * is given to as its signature move. In the previous games,  was never used and the only way it might appear would be if randomly called by.
 * A new mode, "Colosseum 2", was added to the Cable Club.
 * The Viridian City Poké Mart now sells Potions. The NPC complaining about Potions not being sold in Pokémon Red and Blue now states that the Mart finally sells Potions again.