"My name is Kate."
"And I can control monsters too.

―Kate as she introduced herself to Rei.
Gender: Female
Age: Unknown
Home world: Unknown
Series: Ultra Galaxy Mega Monster Battle
First appearance: Ultra Galaxy Mega Monster Battle episode 5 The Trap in Belargo City
Last appearance: Ultra Galaxy Mega Monster Battle: Never Ending Odyssey episode 7 The Second Awakening
Number of appearances: TBA
Type: Anti-Hero (formerly)
Ally (later)
Family: Rei (brother)
Affiliation: Fire Golza,
Gan Q,
Portrayed by: Mayu Gamo
Sound(s): None

Kate (ケイト Keito) is a fictional character from the Ultra Galaxy series. She is a powerful Reionics and Rei's older sister. She served as Ultra Galaxy Mega Monter Battle's main villain.


  • Height: As same with humans
  • Weight: As same with humans
  • Origin: Planet Boris


Ultra Galaxy Mega Monter Battle

Kate was a Reionics who tried to interfere with Rei with every possible means. She took on the appearance of a bio-plant researcher named Maki Azursa. She appeared to be evil, but she revealed that she was Rei's sister and was trying to help reawaken Reimon. She was thought to be killed after EX Gomora destroyed her monster Zetton.

However in Ultra Galaxy Mega Monster Battle Never Ending Odyssey, she appeared again. She revealed that she 'survived' as a spirit, explaining how was able to appear in front of the ZAP SPACY crew first in the Pendragon, in front of Grande (who had a crush on her) and then in front of Rei in a dream in episode 7. She had appeared and explained to the crew what was wrong with Rei once he lost Eleking, and explained that they had to return to Planet Hammer, to retrieve Rei's Battlenizer.

Kate stated that her desire was for Rei, to defeat the Reiyonix and rule as the successor of Alien Reiblood's bloodline.

Powers and Weapons

  • Battle Nizer: Like her brother, Kate also had Battle Nizer thanks to her being a Reionics. Her monsters were:
    • Fire Golza, a much stronger form compared to his original, Fire Golza was the first monster to appear from Kate's Battlenizer. He first appeared to battle a number of Sadora's and killed them all, but when he was in battle with Gomora, Gomora impaled Golza with his horn, surging his Oscillatory Wave through his body. Even though Golza tore the horn out of his body, he still fell and in the end was destroyed by Kates Gan-Q.
    • Gan-Q, a monster that's even more ferocious than Fire Golza, Gan-Q was the second monster commanded by Kate. Gan-Q entered battle with Gomora, Litra, and the Space Pendragon and was defeated by the ship's Hyper Omega Gun.
    • Zetton, the Space Dinosaur himself, Zetton was the third, final, and most powerful monster that belonged to Kate. In episode 12, Zetton entered battle with all of Rei's monsters (Gomora, Litra, and Eleking) and outmatched them all. In the final episode, when Zetton had Gomora in defeat and King Joe Black appeared, fighting Zetton to a standstill, Gomora transformed into EX Gomora and defeated them both, which resulted in Kate's supposed death.
  • Spiritual Form: Kate can project herself in a spiritual form in front of anyone she wanted. Like her ancestor Reiblood, Kate, can survive in a spiritual state. She can manifest her physical appearance, but generally takes the form of a bright white light.


Ultra Galaxy Kaiju & Seijin
Ultra Galaxy Mega Monster Battle Telesdon | Sadola | Red King | Rei's Gomora | Rei's Litra (S) | Juran | Golza | Gudon | Neronga | Bemstar | Fire Litra | Fire Golza | Gan Q | Banpira | Twin Tail | Frogos (B) | Bullton | Cherubim | Arstron | Eleking | Gromite | Angross | Arigera | Zoa Muruchi | Nova | Saramandora | Lunaticks | King Joe Black | Verokron | Doragory | Zetton | Reimon | EX Gomora
Never Ending Odyssey Alien Pitt | Reionyx Hunters | Gomess (S) | Magular | Rei's Gomora | Dorako | Eleking | Alien Hook | Rei's Litra (S) | Alien Guts | Alien Zelan | Arstron | Alien Nackle | Galberos | Illusion Zetton | Burst Mode Reimon | Reionic Burst Gomora | Doragory | Alien Metron | Bemstar | Alien Babarue | Antlar | Vakishim | Alien Keel | Tyrant | Fire Litra | Alien Zarab | Imitation Ultraman | Alien Mefilas | Armored Mefilas | Dada | Alien Temperor | Arigera | Armored Darkness | Miclas | Alien Zetton | Telesdon | King Joe Black | Cherubim | Red King | Alien Reflect | Birdon | King Joe Scarlet | Alien Reiblood | EX Gomora | EX Red King
Mega Monster Battle: Ultra Galaxy Legends THE MOVIE Bemular | Alien Zarab | Zaragas | Rei's Gomora | Dorako | Bemstar | Saramandora | Windom | Miclas | Agira | Pigmon | Rei's Litra (S) | Gomess (S) | Alien Baltan | Antlar | Red King | Magular | Telesdon | Dada | Alien Mefilas | Alien Zetton | Zetton | Eleking | Alien Metron | Nurse | Alien Shaplay | Alien Guts | Arstron | Sadola | Gudon | Twin Tail | Black King | Alien Nackle | Verokron | Vakishim | Doragory | Lunaticks | Birdon | Mukadender | Alien Temperor | Tyrant | Alien Valky | Alien Magma | Alien Pressure | Alien Babarue | Nova | Hoe | Fire Golza | Gan Q | Galberos | Frogos (B) | Banpira | Cherubim | Gromite | Zoa Muruchi | Alien Reflect | Angross | Jasyuline | Arigera | Roberuga II | King Joe Black | Super Alien Hipporito | King Silvergon | King Goldras | King Pandon | King Guesra | Beryudora
Ultra Galaxy Gaiden: Ultraman Zero vs. Darklops Zero Rei's Gomora | Litra | Darklops Zero | Mecha Gomora | Alien Salome | Robot Ultraseven | Robot Ultraman | Robot Ultraman Jack | Fake Ultraman Ace | Robot Zoffy