Bugbuzuns (バグバズン Bagubazun) are Space Beasts who appeared in Ultraman Nexus.

Subtitle: Insect Type Beast (インセクトタイプビースト Insekuto Taipu Bīsuto)


Ultraman Nexus


A new type of space beast, Bugbuzan, appeared on Earth and began to feed off of humans that were driving by in their cars. After Jun had nightmares from the creature's dream infestation of a Beesectar swarm he quickly turned into Ultraman Nexus. The two began fighting and while Nexus did have the upper hand Bugbuzan managed to do some damage including making a gash into the hero's right leg. Night Raiders Chesters Alpha, Beta, and Gamma soon arrived on the scene. Chester Alpha began to assault Nexus and Beta and Gamma opened fire on Bugbuzan. Because of the interference from Night Raiders neither giant could land a hard blow on the other. Seeing this as a chance to escape Bugbuzan flew off, but not before Nexus used the Chrome-Storm Ray to heavily damage the monster's back. Bugbuzan later reappeared the next day as it began to eat unfortunate hitch hikers. After night Raiders updated the Chesters into Chrome Chesters to penetrate Nexus's meta field Bugbuzan was found in an abandoned factory and ate three graffiti artists. Night Raiders was soon on the scene and was informed that a six year old girl named Rina might be in the area. Jun was about to turn into Nexus, but was forced to battle the evil Dark Faust. After Kazuki and Nagi found Bugbuzan communications were jammed from the energies of Faust and Nexus. Soon into battle Kazuki found Rina and tried to protect the young girl and her dog, Hayate. The two were soon cornered by Bugbuzan's pincer tail. Nagi arrived just in time and after a couple shots to the tail the group made it out. As Bugbuzan came out to reveal itself the rest of Night Raiders showed up and used ice shots to free him. As the space beast was walking forward half frozen Nagi fired a single shot into it, blowing Bugbuzan to pieces. Chosen One - Deunamist -

  • Bugbuzun's suit was modified from Shildoban.
  • Bugbuzun‘s roar is modified Gakuma (Alpha)’s roar combined with Godzilla's, Rodan's, and Adult Mothra's.

Bugbuzun Brood

Bubuzun Brood (バグバズンブルード Bagubazun Burūdo) are human-sized drones used by Bugbuzun Growler, these man-sized insectoid monsters prowled the streets, killing any that they came across. After feeding, they’d return back to their giant master and be devoured themselves, giving the blood they ate to Bugbuzun Growler. Their heads modified their beast signals so the Night Raiders couldn’t find them, and within days, over ten people had gone missing.

Their heads modified their beast signals so the Night Raiders couldn’t find them, and within days, over ten people had gone missing. One of the creatures made the mistake of attacking one of the team, however, and soon their tricky disguise as humans was blown. The Night Raiders led a full campaign against them. When Himeya confronted the first Bugbuzun Brood creature, the Unknown Hand suddenly appeared and empowered it. The result was a towering titan, a monster that would have destroyed the entire warehouse if Ren didn’t act fast enough. As it grew larger and larger, the human called on Ultraman and created a Meta Field as he did so. The two were now in a safe area of combat as the Night Raiders dealt with the other smaller beasts. The giant insect, however, was far from a match for Earth’s defender. Coating his fist in energy Ultraman Nexus killed the giant in one quick strike.

When one the scent they had given to one of their victims to the hospital, it was attacked. With its head damaged, it could no longer alter its beast signal, allowing the forces to find the nest and their maker. After Bugbuzun Growler was destroyed, so was the remains of its brood.

  • Giant Bugbuzun Brood's suit is modified from Alukela's suit.
  • Bugbuzun Brood's roar is a modified Vakishim's roar and Izac's roar, which combined Golza's roar.
  • These Bugbuzuns were originally to be called Bugbuzun Embryo (バグバズンエンブリオ Bagubazun Enburio).

Bugbuzun Growler

The source of the infestation that plagued Japan, Bugbuzun Growler (バグバズングローラー Bagubazun Gurōrā) was far stronger than the original one. Feeding on its own brood to absorb the sustenance that they acquired from human prey, the monster went unnoticed for the longest time. Only after the Night Raiders caught on to the brood did they finally bare witness to the real monster as it fed. Knowing its cover was blown, Bugbuzun Growler ripped itself out of the ground and was on the attack. Night Raider shots, not even their vanisher attack, could stop this beast.

Ultraman Nexus was called forth by Ren, and soon the two were battling inside a Meta-Field. When his energy punch failed to stop the beast, the Unknown Hand again made its presence known and began to convert the area into a darkness field! However, fighting so many times in this, Ultraman used it to his advantage. Absorbing some of the wicked energy into his hand and converting it to light, he fired a beam of powerful energy from his fist. The beam tore into Bugbuzun Growler’s body, quickly making the man-eating monster explode.

  • Bugbuzun Growler's roar is modified Gakuma's roar.
  • The Bugbuzun Growler's suit is modified from Bugbuzun's suit.

Ultraman X

Bugbuzun X

Several Bugbuzuns appeared in the Ultra Flare Timeline after being attracted to the Dark Thunder Energy. They were spotted in an underground parking lot and shot dead by Xio. When one of them was about to attack the trapped Deputy Capain; Sayuri Tachibana, she was saved by Nexus, whom bonded with her and killed the Bugbuzun.

However, one single member managed to escape the onslaught and grew to gigantic proportions the next day by Dark Thunder Energy. Ultraman X tried to attack it but he was easily overpowered by its superior mobility until Nexus/Sayuri came to his aid in Junis form and quarantined the Space Beast in a Meta Field allowing both Ultras to gain the upper hand over it and, eventually, to finish it with their Over-Ray Schtrom and Xlugger Shot respectively. Bond -Unite-


  • These Bugbuzun Broods were portrayed differently compared to the ones from the Ultraman Nexus EX episode: their smaller forms used the appearance of the original large Bugbuzun Brood outfit while the enlarged version sported a slight modification, which is a pair of "branches" on both shoulders. In their original appearance, their human sized form, was similar enough to humans to wear clothes to disguise themselves.
    • Said branches were recycled from Arakunia, a fellow Space Beast whose original size is also that of human.
  • In the official website of Ultraman X, Bugbuzun Brood was mispelled as バグバズンブルー (Bagubazun Burūto), where said changes were the katakana letter Do (ド) was replaced with To (ト).
  • Unlike with most of the Dark Thunder Energy victims, Exceed X did not expel the dark energy from Bugbuzun. This is likely due to the pre-mutation Bugbuzun being smaller in size, thus making it harder to be killed. It is more likely because it was made clear that Bugbuzun are naturally violent, especially towards humans.
  • Director Yuichi Abe stated that he believed the Broods were too weak in their original appearance, so made them a more threatening enemy in this episode.


  • Height: 40 m
  • Weight: 35,000 t
  • Origin: Unknown Hand
  • Predation methods: Caught both victim and car (while the victim is still driving).
Powers and Weapons
  • Dream Infest: Bugbuzun can infest the dreams of others with using Beesectars, but it does nothing to the victims physically.
  • Flight: Bugbuzun can fly at high speeds.
  • Pincer: Bugbuzun has a large mandible-like pincer on the end of it's tail. The skin of this tail can also increase the temperatures of their targets upon impact.
  • Claws: Bugbuzun has sharp claws on its hands that can cut the likes of Ultraman Nexus.
  • Burrowing: Bugbuzun can burrow at low speeds.
  • Tentacles: Bugbuzun can create tentacles that can wrap around prey.

Bugbuzun Growler
  • Height: 53 m
  • Weight: 35,000 t
  • Origin: Unknown Hand
  • Predation method: Unleashing tentacles from its mouth before dragging the victim for feeding
Powers and Weapons
  • Burrowing: Bugbuzun Growler can burrow underground in a moderate speed.
  • Mandibles: The head that tips Bugbuzun Growler's abdomen is tipped with a large mandible strong enough to hold struggling opponents for a good amount of time.
  • Tentacles: Bugbuzun Growler can launch several tentacles, perfect for ensnaring human-sized prey, from the mandibles on its abdomen.
  • Bugbuzun Brood creation: In order to feed humans, Bugbuzun Growler can create smaller drones of itself called Bugbuzun Brood to feed on human so and for it to feed on Bugbuzun Broods instead.

Bugbuzun Brood


Normal Form


Giant Form

  • Height: 1.8 m, 45 m (Large)
  • Weight: 150 kg, 35,000 t (Large)
  • Origin: Bugbuzun Growler
  • Predation method: Unleash gas to victims before feeding them.
Powers and Weapons
  • Scent: The Bugbuzun Brood can emit a small amount of purple gas from its mouth. This gas smells very sweet and can confuse and disorient humans. This also allows them to track victims, possibly for days, should one ever escape.
  • Growth: Bugbuzun Brood can grow into gigantic proportions, however this is only possible through outside help, such as Dark Field and Dark Thunder Energy.
Ultraman X
  • Sharp Talons: After being grown by the Dark Thunder Energy, Bugbuzun Broods sported a set of longer and sharper talons, ideal for combat.


Ultraman Nexus

Ultraman X

Ultra N Project Kaiju & Seijin
ULTRAMAN (2004 film) Beast the One | Zero (Mentioned)
Ultraman Nexus Pedoleon | Beesectar | Bugbuzun | Bugbuzun Brood | Bugbuzun Growler | Galberos | Lafleya | Nosferu | Beast Human | Galberos II | Arakunia | Frogos | Golgolem | Kutuura | Grantella | Banpira | Lizarias | Lizarias Growler | Mega Flash | Izmael
Unused Ultraman Nexus Monsters Unused Space Beasts from Ultraman Nexus
Ultraman X Kaiju & Seijin
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Ultraman X The Movie: Here Comes! Our Ultraman Alien Fanton Guruman | Cyber Gomora | Zaigorg | Gorg Antlar | Gorg Fire Golza | Tsurugi Demaaga | Alien Baltan | Desastro
Ultraman Festival 2015 Alien Selemo Marie | Skedon | Cyber Skedon | Denpagon | Cyber Denpagon
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