Like Pokémon Red and Blue, Yellow takes place in the region of Kanto, which features habitats for 151 Pokémon species. The objectives remain the same as well, though some differences exist along the way. For example, in the beginning, the player is not given an option of choosing one of three starters. Instead, a wild Pikachu that Professor Oak catches becomes player's Pokémon, while the rival character takes an Eevee that was intended for the player. The plot takes from the anime, and features characters that were not featured in the game or have been enhanced to resemble their anime characters, including Jessie, James, Meowth, Nurse Joy and Officer Jenny. Similar to the anime, Pikachu refuses to evolve. Players are also given the opportunity to obtain the original three starters. As players quest on, they collect more Pokémon and use them to defeat the eight Gym Leaders and eventually the Elite Four, all the while battling Team Rocket, a gang devoted to using Pokémon in order to make themselves more powerful.