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>Why does the Player Character talk when he/she is acting? Because they don't talk anywhere else due to the fact the makers wanted you to imagine their personalities, and in Pokéstar Studios they talk because they're acting.
>Bianca's slight redesign includes glasses. This seems like a somewhat inexplicable addition until you take into account how klutzy she is in the first games - she's nearsighted!
>Why is Pikachu still not in the Unova Dex despite being the anime mascot as Ash's signature Pokemon? All to be consistent with the anime where it was already stated that Pikachu is a rare Pokemon not found in the Unova region!