to captain Ibuki's arrival, he was able to trick the monster into catching his missile as Jack fired it, killing it after detonating its head with Specium Ray. : A monster that appeared in one night and sliced one of the three Guanyin statues Matsumoto, Nagano with its buzzsaw arms. Jack fought the monster in a kickboxing challenge. Even with its arms dismembered, Gronken still had its tail to perform jumping attack but Jack quickly beheaded the monster with a combination of Ultra Spark and Ultra Kick. : A jellyfish monster from the coastal area of Micronesia and had created various typhoon incidents in Japan. In addition to emitting gas, Varricane's mouth can also absorb Jack's Specium Ray. When Varricane exposed itself in Tokyo, MAT came up with the plan to inject it with anesthesia missiles, but it only agitated the monster even further to create a typhoon. With explosive missiles and even Jack's Specium Ray were proven futile, the Ultra brought the monster to outer space for detonation. : The endling of an ancient water buffaloes, Oxter survived fossilization long enough to be mutated into a giant monster while dedicating to protect the remains of its deceased comrades. After it killed a pair of scavengers and a local old man, the Sakata brothers reported the incident to MAT. Initially Oxter had the upper hand against Jack but the Ultra turn the tables by evaporating an entire lake using his Ultra Bracelet. Oxter was stripped to the bone with Ultra Shot while its remains sank in the rejuvenated lake. : A moth-like monster from beneath the Ryujindake mountain and awakened due to a series of earthquakes. Normal equipemts like MAT Vehicle's cannons were incapable of injuring the monster, but Ueno's bombs managed to dismember its right arm. Unfortunately Kingmaimai evolved into a winged monster that Jack faced against. After faking death, it sprayed web to Jack but was defeated by force-swallowing the Bracelet Bomb. : A salmon-like monster with the ability to shoot heat ray, which was sealed by the Alien Mates in order to protect Sakuma and a nearby city. When the Alien Mates was killed by the citizens, his telepathic seal was undone and Muruchi was released into the city to resume its original reign of terror. Despite Go's initial refusal to transform (wanting Mates' killers to reap for their misdeeds), he fought Muruchi as Jack and defeated