5 iconic moments · verified episode numbers · no spoiler ratings
Ash Ketchum oversleeps on the day he is supposed to choose his starter Pokémon. The only one left is a stubborn Pikachu who refuses to go into its Poké Ball. Pikachu only warms to Ash after Ash shields him from a flock of Spearow — the moment their bond begins.
Lt. Surge's Raichu easily defeats Pikachu. Ash offers to evolve Pikachu to even the score — but Pikachu refuses. He will win as himself or not at all. He defeats Raichu using speed Raichu lost when it evolved. The defining episode for Pikachu's character.
Ash finally battles the Viridian City Gym Leader — who turns out to be Team Rocket's boss, Giovanni. Ash holds his own and earns the Earth Badge through sheer determination, though Giovanni departs mid-battle, caring little for the result.
Ash faces the ghost of a Marowak whose child was taken by Team Rocket and who has haunted the Pokémon Tower ever since. The episode was banned in several countries and remains one of the most emotionally affecting in the series.
After years of losses, Ash finally claims the top spot at the Indigo Plateau League in a new region arc. The journey continues through Johto with Misty and Brock at his side.
Episode numbers are verified against the aired broadcast order. Pokémon is the property of its respective creators and studios.