: An emergency forces Giovanni to leave the gym, and he leaves Jessie, James, and Meowth in charge as substitute Gym Leaders. They use Giovanni's Pokémon—including Rhydon, Kingler, and Machamp—to battle Ash.
: Before Ash can challenge the gym, his rival Gary Oak enters and faces the Gym Leader, Giovanni. Despite Gary's skill, Giovanni unveils a powerful, never-before-seen armored Pokémon—Mewtwo—who effortlessly defeats Gary's Arcanine and Nidoking. 63 : The Battle of the Badge
: The appearance of Mewtwo serves as a direct prelude to the first movie, Mewtwo Strikes Back . : An emergency forces Giovanni to leave the
: Gary reveals he already has ten badges, despite only eight being needed for the league, suggesting Kanto has more than eight total gyms. and he leaves Jessie