One Piece: Giant Mecha Soldier of Karakuri Castle

Monkey D. Luffy (Mayumi Tanaka) wants one thing from Mecha Island, and that is the Golden Crown a fisherman sings about in an old folk song. Konosuke Uda sends the Straw Hats into a hidden cave entrance with Roronoa Zoro (Kazuya Nakai), Nami, Usopp and Sanji, along with Ratchet, the island's leader, who is hunting the same treasure. Beneath the machinery, the island is a giant turtle, and the film puts a living creature up against the people who would drive it.