While at the beach Arale Norimaki rescues a shark. In return, the shark invites her and the rest of the Norimaki to their underwater city. Meanwhile, Suppaman intends to follow them and get revenge. While in the city, Arale meets Urashima Tarō, who joins Arale while playing at the amusement park.
Kenji Utsumi
Senbei Norimaki (voice)
Mami Koyama
Arale Norimaki (voice)
Naokazu Adachi
Taro Urashima (voice)
Wakako Shimazaki
Mermaid Queen / Obotchaman (voice)
Takeshi Aono
Urashima Taro(voice)
Hiroko Emori
Turbo Norimaki(voice)
Toru Furuya
Suppaman(voice)
Hirohiko Kakegawa
Eel(voice)
Yoko Kawanami
Midori Norimaki(voice)
Chie Sato
Child Shark (voice)
Naoki Tatsuta
Father Shark (voice)
Yōko Teppōzuka
Gajira Norimaki (voice)
Dr. Slump and Arale-chan: Hello! Wonder Island
1981
Dr. Slump: Hoyoyo! Space Adventure
1982
Dr. Slump and Arale-chan: Hoyoyo! The Great Race Around The World
1983
Dr. Slump and Arale-chan: Hoyoyo! The Treasure of Nanaba Castle
1984
Dr. Slump and Arale-chan: Hoyoyo! City of Dreams, Mechapolis
1985
Dr. Slump and Arale-chan: N-cha! Clear Skies Over Penguin Village
1993
Dr. Slump and Arale-chan: N-cha! From Penguin Village with Love
1993
Dr. Slump and Arale-chan: Hoyoyo!! Follow the Rescued Shark...
1994This film
Dr. Slump and Arale-chan: N-cha!! Excited Heart of Summer Vacation
1994
Dr. Slump: Arale's Surprise Bang
1999
Dr. Slump: Dr. Mashirito and Abale-chan
2007
