When a space probe crash-lands on a far-flung Pacific atoll, the craft's alien stowaways decide to take over their new world one creature at a time. Soon, the parasitic life forms latch onto three indigenous critters -- a squid, a crab and a snapping turtle -- and transform them into colossal mutant monsters.

• TOHO
• Toho Eizo Co.
• Akira Kubo
• Yukiko Kobayashi
• Atsuko Takahashi
• Yoshio Tsuchiya
• Tetsu Nakamura
• Sachio Sakai
• Kenji Sahara
• Yū Fujiki