: The Grimer and Muk attack the group, and even Pikachu is too weak to fight effectively.
In the Pokémon anime episode (Season 1, Episode 30), Ash and his friends arrive in the gloomy, industrial Gringey City , a place plagued by pollution and smog . Pikachu’s "Cold" 30 : Sparks Fly for Magnemite
: The Magnemite that was following Pikachu suddenly summons a group of other Magnemite and Magneton. Together, they use their electrical attacks to drive away the Grimer swarm. : The Grimer and Muk attack the group,