Pokemon that Meowth could have picked to play as

[Rei Kurosawa]

Banette

Pokédex entries
Ruby: Banette generates energy for laying strong curses by sticking pins into its own body. This Pokémon was originally a pitiful plush doll that was thrown away.
Sapphire: A cursed energy permeated the stuffing of a discarded and forgotten plush doll, giving it new life as Banette. The Pokémon's energy would escape if it were to ever open its mouth
Emerald: An abandoned plush doll became this Pokémon. They are said to live in garbage dumps and wander about in search of the children that threw them away.
FireRed/LeafGreen: Strong feelings of hatred turned a puppet into a Pokémon. If it opens its mouth, its cursed energy escapes.
Diamond/Pearl/Platinum: A doll that became a Pokémon over its grudge from being junked. It seeks the child that disowned it
HeartGold/SoulSilver: This Pokémon developed from an abandoned doll that amassed a grudge. It is seen in dark alleys.
Black2/White2: A doll that became a Pokémon over its grudge of being thrown away. It seeks the child who disowned it.

[Rei Kurosawa]

Yamask

Pokédex entries
Black:Each of them carries a mask that used to be its face when it was human. Sometimes they look at it and cry.
White:These Pokémon arose from the spirits of people interred in graves in past ages. Each retains memories of its former life.

[Rei Kurosawa]

Gengar

Pokédex entries
Emerald: Deep in the night, your shadow cast by a streetlight may suddenly overtake you. It is actually a Gengar running past you, pretending to be your shadow.
FireRed: It is said to emerge from darkness to steal the lives of those who become lost in mountains.
LeafGreen: On the night of the full moon, if shadows move on their own and laugh, it must be Gengar's doing.
Diamond: It hides in shadows. It is said that if Gengar is hiding, it cools the area by nearly 10 degrees F.
Pearl: Lurking in the shadowy corners of rooms, it awaits chances to steal its prey's life force.
Platinum: The leer that floats in darkness belongs to a Gengar delighting in casting curses on people
HeartGold: It steals heat from its surroundings. If you feel a sudden chill, it is certain that a Gengar appeared.
SoulSilver: To steal the life of its target, it slips into the prey's shadow and silently waits for an opportunity.
Black2/White2: The leer that floats in darkness belongs to a Gengar delighting in casting curses on people.