An ancient monster that loves uranium. It fires radioactive beams from its mouth, and a protective barrier surrounds its body and deflects enemy attacks.

It appeared in the mountains of Hakone and headed towards a nuclear powerplant in search of uranium, but MAT intercepted it, and it fired a radioactive beam at the MAT Arrow 2 in retaliation.
Ultraman Jack appeared and engaged it in battle.
The monster’s barrier deflected all of Jack’s beam attacks, and it fought back with beams fired from its horns. After repelling Jack, it disappeared into the ground.

It later reappeared near the powerplant.
MAT had been training to target its barrier’s weak spot and attacked the monster directly from above.
Ultraman Jack appeared to fight it again, delivering a technique developed through vigorous training called the “Meteor Kick.” The kick broke the monster’s horn, rendering it unable to use its barrier. Powerless, it tried to escape before Jack finished it off with a Spacium Beam.