Black Giras
A monster controlled by the Saber Tyrant Alien Magma alongside its younger brother, Red Giras. Black Giras attacks by firing beams from the horn on his head, and the Giras Spin attack performed with its brother.

Black Giras, its brother Red Giras, and Alien Magma wiped out Ultraman Leo’s homeworld Planet L77. Next they flew to Earth where the Twin Monsters fought against Ultraseven on Kurokami Island, injuring him with their Giras Spin. They twisted the hero’s right leg and damaged him so badly, he became unable to transform back into his Ultra form.

The trio were forced to retreat when Leo arrived as reinforcement, but the brothers reappeared and sank the Kurokami and Ozu Islands before heading to Tokyo. Black Giras caught Ultraman Leo in a pincer attack with his brother Red Giras. However, MAC captain Dan Moroboshi, now unable to transform into Ultraseven, used his Ultra Psychokinesis to stun the monsters. Leo used the opening to snap Black Giras’ horn, so the brothers retreated once again.

The twin monsters reappeared in Tokyo and dealt a severe blow to MAC, but in the end both Black Giras and Red Giras were defeated by Leo’s corkscrew kick.


Red Giras
A monster controlled by the Saber Tyrant Alien Magma alongside his older brother, Black Giras. Red Giras attacks by firing beams from his horn and the Giras Spin combination attack performed with Black Giras.

Red Giras, its brother Black Giras, and Alien Magma wiped out Ultraman Leo’s homeworld Planet L77. Next they flew to Earth. The trio ambushed Ultraseven on Kurokami Island, 250 km out to sea, where they injured Ultraseven so badly that he could no longer transform. Reinforcements arrived in the form of Ultraman Leo. Leo put Magma at a disadvantage, and the three of them retreated.

Red Giras reappeared with its brother Black Giras and sunk Ozu Island, 150 km out to sea before heading towards Tokyo. When Leo came to stop them, Red Giras and Black Giras gave Leo no room to fight back. However, Captain Dan Moroboshi used his Ultra Psychokensis to paralyze the monsters. This gave Leo time to break off Red Giras’ horn, and the twins retreated.

The monsters reappeared in Tokyo after their horns had grown back and dealt MAC a large blow. However, Ultraman Leo had developed a corkscrew kick to counter the Giras Brothers’ Giras Spin, and Red Giras was defeated along with its brother.