Meowth is a Normal-type Pokémon in the episode, The Purr-fect Hero.
Timmy was attacked by a Beedrill suddenly when walking through the forest. Then, the Meowth appeared and saved Timmy from it. Because of this, Timmy will not play with any other Pokémon on Kid's Day. Later, he had mistaken Team Rocket's Meowth as his "hero" Meowth.
When a huge boulder came down, Timmy tripped. Ash picked him up to save him, but the boulder was too close. Then, the Meowth appeared again and kicks the boulder. Later, Timmy told Ash that when he grows up, that he and Meowth would go to the Pokémon League.