Meowth was first seen in Pokémon Red and Blue and has been in almost every other Pokémon game since. It is a scratch cat Pokémon that is known for its high speed stat and the fact that is one of only two Pokémon to learn Pay Day (The other is Persian). It evolves into Persian at Level 28. It is known to be somewhat similar to other cat Pokémon such as Skitty and Glameow.
Other Pokémon games
Super Smash Bros. series
It is seen in the Super Smash Bros. series as a Poké Ball Pokémon that throws coins at the players.