Ultraman: S1 E14 - The Pearl Defense Directive
In the district aroudn Iseshima, cultured pearls suffered near-annihilation. The pearl farmer evacuate the surviving pearls to the Sea of Japan side, but Gamakugira appeared at such timing. And surprisingly Gamakugira began to eat pearls with its long tongue. Attack of SSSP was ineffective, and it moves forward toward the big city with pearls!