Professor Oak holding a book

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Professor Oak character art

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Scientist with Grill — Gray, Humorous

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Scientist with Grill — Gray

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Pokémon in Poké Balls — Yellow

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Five Poké Balls — Black

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Team Rocket Grunts holding Poké Balls

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Pokémon Poké Balls in a box

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Professor Oak frustrated

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Various Poké Balls

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Professor Frink waving

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Girl Holding Poké Balls

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