A species of mosasaur was found off the island nation of Japan, dubbed the Chirosaurs, and both the D-Force and Ururu wanted to study these creatures. In order to learn more about the aquatic reptiles, Ururu dispatched Parasa to guard the saurians. The massive hadrosaur was soon put to the test when the D-Force raced to the island and were instantly bombarded with heat beam after heat beam from the duckbilled dinosaur. However, the saurian retreated back into a cave after a barrage of missiles scored a direct hit. After a while, Parasa was lured out of the cave and into the ocean, where the twins combined, transforming the Aizenborg 1 into the Super Aizenborg! With Parasa in the water, the battleship dove under the waves, and after a brief moment of silence, two halves of the dinosaur slowly floated up to the surface, signifying the end of Parasa.