Varan the Unbelievable

A rare species of butterfly, native only to Japan's Kitakami River area, is discovered by two Japanese students while vacationing. Nearby villagers insist that both deaths were a result of the wrath of their god Baradagi-sanjin. Reports of the monster's existence reaches Tokyo, and the military is mobilized. The military begins releasing toxins into the lake to drive out the monster. The plan is successful, and Varan emerges from the water and is immediately shelled by the surrounding forces.