Most people here usually ask if Pikachu is a rabbit because of the ears. Ash can kinda of see where the ears look kind of alike. A cat though? Every cat type Pokemon he's seen have always had little triangle shaped ears. He pulls the pokedex up again and looks up the first cat type Pokemon he could think of which of course would be Meowth.

"Meowth, the Scratch Cat Pokémon. When it sees round objects, it plays and loses track of time." The pokedex voices, displaying a picture tan cream colored cat with a gold charm affixed to its head.

"Hm, that doesn't sound like the Meowth we know at all." Ash frowns. Pikachu finally looks up from his ketchup to see what Ash is up to when he doesn't see any immediate threat he's back to licking the ketchup bottle.