Ep. 9: Ash busca la ayuda de Hala para resolver una infestación de Rattata en la Isla Melemele

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Ash meets Hala, the Kahuna of Melemele Island, who created his Z-Ring. As part of Ash's first Island Trial Challenge, Hala tasks him with finding a solution to an infestation of Rattata and Raticate without fighting them. Thanks to his friends' suggestion, Ash decides to recruit the local Yungoos and Gumshoos. However, Ash must defeat their leader, the Totem Pokémon Gumshoos, in battle in order to earn their cooperation, with Tapu Koko secretly observing. (Source: Wikipedia)