Gappa, the Triphibian Monster

大巨獣ガッパ

Also known as The Gigant Beast Monster, The Triphibian Monster, Monster from a Prehistoric Planet, The Giant Beast Gappa, Gappa - Frankensteins fliegende Monster

“Vast! Hideous! Invincible!”

An expedition in the South Pacific lands on a tropical island where the natives worship the mysterious deity Gappa. An earthquake opens up an underground cavern and a baby reptile is discovered inside. The natives warn the foreigners to leave the hatching alone, but they don't listen and take it back to a zoo in Japan. Soon after, moma and papa Gappa start smashing Tokyo looking for their kidnapped child.