Movie 6: 1998 Blitzkrieg! Pig's Hoof's Secret Mission w: Subs

The story begins when a secret agent Orioke hides on a houseboat stealing a disk necessary to make a secret weapon from the airship of the secret society Pig's Hoof where the students of Futaba Kindergarten were dining. An airship of Pig's Hoof took boat with Orioke, Shinnosuke, Kazama, Masao, Nene and Bo.