Jungle de Ikou! - Season 1 Episode 3 Happening Three MAI We Got Fun and Games!
Overview: Ongo, God of Destruction, appears at Natsumi's father's museum and destroys the building. He wants to destroy the whole world, but Mai and Ahem the witch doctor step up and fight back. Mai becomes the Flower Spirit, and she chants a spell along with the spirits of the jungle. Mai becomes a giant capable of fighting Ongo.