Dr. Slump and Arale-chan: Hoyoyo! The Treasure of Nanaba Castle
Dr.スランプ アラレちゃん ほよよ!ナナバ城の秘宝
Dr. Slump and Arale-chan: Hoyoyo! The Treasure of Nanaba Castle On Soap2Day. Senbei Norimaki finds the secret treasure named “Eye of Rainbow” of the legendary Nanaba Castle in the mountain. This treasure makes every dream come true. When the gang of Arale Norimaki and Gatchan tried to steal the treasure, Bisna, who is the descendant of Nanaba Kingdom, takes the treasure. Bisna wants to revive the devil and Nanaba Kingdom. Arale and her friends went towards the secret Nanaba Castle to get back the treasure.
- Genre: Comedy, Animation
- Country: Japan
- Director: Hiroki Shibata
- Cast: Kenji Utsumi, Mami Koyama, Kazuko Sugiyama, Naomi Jinbô, Toshio Furukawa, Hiroshi Ôtake, Isamu Tanonaka, Shigeru Chiba, Mitsuko Horie, Masaharu Satô, Tesyo Genda, Mariko Mukai,