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Ace Killer[1] (エースキラー, Ēsu Kirā), also known as Mebius Killer (メビウスキラー, Mebiusu Kirā) and Victory Killer (ビクトリーキラー, Bikutorī Kirā), is a robotic assassin from the TV series Ultraman Ace, first appearing in episode 14. Ace Killer and his variants are designed to be as strong (if not stronger) as their Ultra counterparts.


  • Extradimensional Terrible-Being[2] (異次元超人, Ijigen Chōjin, lit. Alternate Dimension Superman)
  • Beatstar: Celestial Sphere Terrible-Being (天球超人, Tenkyū Chōjin)


Ultraman Ace

Ace Killer was a creation of Yapool in an attempt to kill Ultraman Ace. By luring the Ultra Brothers onto a desolate planet and forcing Ultraman Ace to battle the Terrible-Monster, Baraba on Earth. Ace Killer was released and absorbed the powers and weapons of the Ultra Brothers. With their power, Yapool released a robot replica of Ultraman Ace to demonstrate Ace Killer's power. Withstanding a Metalium Beam, Ace Killer used a barrage of Ultraseven's Emerium Beam and Ultraman's Spacium Beam to weaken the robot until it destroyed it with a variation of Zoffy's M87 Beam.

Eventually, Ultraman Ace returned to try and rescue his brothers but was ambushed by the powered-up Ace Killer. With the Ultra Brothers' powers, Ace Killer easily overpowered Ultraman Ace until the Ultra Brothers used the last of their energy to replenish Ultraman Ace. With their combined energy, Ultraman Ace hurled a concentrated ball of their energy (the attack known as Space Q) at Ace Killer, destroying Yapool's weapon against him and releasing his comrades. 5 Stars Scattered in the Galaxy


  • Designer: Yoshio Suzuki
    • Suzuki also said that Ace Killer is his favorite Ultra Kaiju to design, but has no idea on how did he manage to design his head.
  • Voice actor: Frank Welker (Fighting Evolution only)
  • Original magazines claim that Ace Killer is a cyborg, as it was originally a corpse from a Planet Golgotha that Yapool took and zombify it. Eventually after Ultraman Mebius, later Ace Killers are written as robots instead.
  • This is the only series in which Ace Killer carries his sai, series-wise. In video games, he uses it as a weapon.
  • Interestingly, in the Ace manga by Matsuhisa Akihito, Ace Killer does not appear at all, his role and name being taken by Baraba instead.
Ace Killer Belyudra

Ace Killer

Andro Melos


Ace Killer amongst the revived remodeled monsters of Gua Army.

The magazine series of Andro Melos revealed that the original Ace Killer was resurrected by the Gua Army into Remodeled Ace Killer (改造エースキラー, Kaizō Ēsu Kirā) and conscripted into their force of the remodeled monster army.

In June 1981 issue, the Ace Killer fought against Zoffy at some point after Ultraman 80 finished his mission on Earth. The Ace Killer threw Zoffy into a black hole and was killed by Andro Melos, who happened to be the disguised Zoffy.

In February 1982, Ace Killer was revived alongside the other remodeled monster army. The entire team trap Melos and Andro Wolf inside a flaming vortex, but the two were able to escape and defeat the entire army.


  • According to Shinichi Wakasa, the photography for Remodeled Ace Killer was taken in Yorii of Osato District in Saitama Prefecture.[3]
  • In the magazine picture where Ace Killer attacked Melos, its appearance was only rendered to its legs. Ultra Super Legends further compensated and expanded his role and reason for hunting Zoffy.

Ultraman Mebius

Ultrmn Mbs Ac Kllr

Ace Killer in Ultraman Mebius

Ace Killer returned in episode 43 of the series, Ultraman Mebius as Mebius Killer. In this series, Yapool created a second Ace Killer and used it as a weapon to battle Ultraman Mebius.

Ace Killer

Mirai had gone on a walk in the park with a girl he'd met, but Yapool was spying on them, disguised as a human once more. He held a clutch of balloons with him; these looked innocent but had devious powers. Yapool finally confronted Mirai, as he was dealing with an annoying, smug reporter, revealing his true identity as Yapool. But rather than fight him, he released a red balloon with gold stripes into the sky. The balloon opened up a dimensional hole, and from it, Ace Killer emerged! Yapool teleported to a safe distance to observe, as Ace Killer made his way toward Mirai, crushing anything in his path. The reporter made a hasty getaway, but Mirai stayed with the girl, telling her to run, and that he'd take care of Ace Killer. Mirai ran off to transform into Ultraman Mebius, but unknown to him, she followed him and witnessed his transformation. Mebius confronted Ace Killer, who proved to be a much better fighter. Things only got worse as Yapool called Gadiba into action. The little gas monster leaped into Ace Killer's body, and gave him new abilities; he was now Mebius Killer.

Mebius Killer

Ultrmn Mbs Mbs Kllr

Mebius Killer

After Gadiba transformed Mebius Killer, Yapool ordered Mebius Killer to first use the Mebium Shoot; placing his left palm over the green pendant on his right forearm, Mebius Killer charged his hands with energy and performed the Mebium Shoot. It struck Mebius' body, but he sidestepped most of it. Yapool, laughing, ordered him to fire it again, but this time, Mebius fired his own Mebium Shoot, and the two were evenly matched. Yapool then ordered Mebius Killer to use the Mebium Blade, which formed out of his green pendant. Mebius pulled out his blade as well, but Mebius Killer was stronger still and outmatched him. Finally, Yapool ordered him to use the Mebium Burst. The ball of fire struck Mebius with great force, and Mebius fell to the ground as Yapool laughed. Mebius tried to get up, but he was too weak. That's when the girl ran up and spoke to Mebius; she believed in him and his strength. Mebius wouldn't give up now, and he got back up to fight once more. This time, however, Mebius was winning. Mebius Killer grappled with Mebius and was overpowering him. That's when Mebius pulled out his newest power; his body began glowing red, and then he engulfed Mebius Killer and himself in flames! It was Mebius' version of the Ultra Dynamite move Ultraman Taro uses; the Mebium Dynamite! Mebius Killer groaned in agony as Mebius' flames burned his flesh, but Mebius kept a good grip on him, and finally, with one last burst of power, Mebius caused the finishing explosion, destroying Mebius Killer once and for all. Unfortunately despite its destruction, Mebius Killer fulfilled its purpose to exhaust Mebius, allowing Yapool to kidnap Mirai, Aya, and Hirukawa into his dimension. Threatening Mebius Killer


  • The new suit is designed by Hiroshi Maruyama, based on an old picture of Ace Killer from his time in Ace. Despite looking almost identical, Maruma admitted that his redesign involved several minor alterations.

Ultraman Mebius Gaiden: Ghost Rebirth

Ace Killer Ghost Rebirth

Mebius Killer battling Ultraman Ace

Mebius Killer returned as a body possessed by Yapool in Ultraman Mebius Gaiden: Ghost Rebirth as part of the assembled Dark Four Heavenly Kings. To denote his revived status, he is labeled as Mebius Killer (G) (メビウスキラー(G)ゴースト, Mebiusu Kirā Gōsuto)

The Heavenly Kings assaulted the Ultra Brothers in an attempt to reunite the Giga Battlenizer and Mechazam in an attempt to resurrect Alien Empera. However, their plans are foiled when Ultraman Mebius loses the Giga Battlenizer and Mechazam sacrifices his life to keep The Emperor from being revived. In the end, he battles Ace and is destroyed by his Metallium Beam. Ultraman Mebius Gaiden: Ghost Rebirth


  • Voice actor: Ryoichi Tanaka
  • As stated at the cover of the show's DVD jacket, Yapool was meant to physically return but due to his suit being used in an outside attraction at the time, only Mebius Killer was left available and this forced the filming crew to come up with the excuse of Yapool possessing the body of his creation.

Mega Monster Battle: Ultra Adventure

Ace Killer Ultra Adventure

Ace Killer with a replacement pincer claw for left arm.

Ace Killer was utilized by Yapool to threaten the Alien Pedan into surrendering Io Mikura, then was forced to retreat when they retaliated with King Joe Black, who managed to destroy its left arm. By the time Ace Killer joined Alien Nackle's Terrible-Monster army on Planet Pedan, its left hand was given a pincer claw. It was defeated by Io's Gomora, resulting with its inner machinery spilled out from breaking apart.

In Mega Monster Battle: ULTRA MONSTERS, Ace Killer and Tyrant are assigned to attack the protagonist after they killed Alien Nackle and his Black King.

Ultraman Zero Gaiden: Killer the Beatstar

Ace Killer saga

Ace Killer battles Glenfire

Ace Killer returned as a mechanical replica built by Beatstar, designated Ace Killer (BS) (エースキラー(BS)ビートスター, Ēsu Kirā Bītosutā) as part of his Mecha Robot Army.

In part 1 of the special, after Gomora destroys a Legionoid Beta, Ace Killer (as well as Inpelaizer and King Joe) appear and together with the team up and beat down Gomora, forcing the monster back into Rei's Battlenizer. Shortly after, the Ultimate Force Zero arrives on the scene and battles the robots. Glenfire battles with Ace Killer and eventually destroys the robot by pile-driving him into the ground. Ultraman Zero Gaiden: Killer the Beatstar


  • Although it was built as "Ace Killer", supplementary magazines such as 2013 All Monsters Photobook claims that Ace Killer (BS) also bears the data of Mebius Killer, hence explaining the Mebius Brace on his right wrist.

Ultraman Ginga

Ace Killer and Kabuto the Killer were participants of the Dark Spark War turned into a Spark Doll by Dark Lugiel.

In episode 7, Ace Killer along with many other Kaiju and aliens are seen cheering on Ginga as he fights Dark Galberos.

In a couple of shots of the series, Ace Killer and Kabuto the Killer could be seen in Dark Lugiel's collection along with Deathfacer, Ghighi, Gatanothor, Birdon, Goldras, Alien Babarue, Gan-Q, Dada, Mecha Baltan, Alien Hipporit, Twin Tail, Mochiron, and a lot of other monsters and aliens.

It is assumed that after Ultraman Ginga defeated Dark Lugiel, they traveled back into space to return to Yapool's dimension, having regained their original forms.

Ultra Fight Victory


Ace Killer returns as Victory Killer.

Ace Killer was the guard of a captured Ultraman Ginga, on orders from Yapool on Satellite Golgotha. He then dueled Ace there when he came to save Ginga. They were an even match for the most. After Ace launched the Ultra Guillotine attack, Ace Killer was thought he finished off. However, the Terrible-Monster survived and debuted his KillerTrans as being reintroduced by his master as Victory Killer. He summoned his new EX Red King Knuckle and struck Ace down to the surface with it. He then summoned the King Joe Launcher and fired at Ace, but the Ultra summoned his Ultra-Neo Barrier to deflect the energy bullets. Victory Killer then attacked Ace from behind, summoning his Eleking Tail, and defeated Ace by striking him with it many times. He was about to finish off Ace when Ultraman Victory showed up, used his Knight Timbre to transform into Victory Knight, and began to fight him. When the latter summoned his Sadola Scissors, Victory became shocked by this and Yapool explained that he studied the Ultlance and used them to modify the robot to become Victory Killer.

While Victory was kept busy with the new and improved robot, Yapool summoned Lunaticks to kill Ginga. Victory then decided to use the Knight Timbre to bring Shepherdon back to life, the process temporally knocked away Victory Killer. Victory Killer then got back up, summoned his Gudon Whip and fought Victory again until the knight slashed him across the chest with a glowing sword twice and finally finished him off with the Knight Victorium Shoot while Shepherdon finished off Lunaticks with his Victorium Flash. Ultra Fight Victory


  • KillerTrans voice actor: Tessho Genda
  • For this appearance, Ace Killer had his Mebius Brace removed so that he looked identical to his first appearance.
  • The KillerTrans props were reused from Ultraman Victory's, while the end part used to connect Victory's arm was recolored to match Ace Killer's color scheme.
  • Unlike previous incarnations, all of Victory Killer's KillerTrans were used on the same arm as the Ultra it was modified to copy, as opposed to being on the opposite arm (possibly due to Victory Killer's large claw on its left hand.).

Ultraman Geed

Main article: Thunder Killer

Ace Killer's Kaiju Capsule is used by Kei Fukuide as a component of Thunder Killer.


Ace Killer (Uncharged)
Ace Killer First

Ace Killer

Powers and Weapons
  • Battle Sai: Ace Killer is equipped with a large sai, which he holds in his right hand. It can be used as a normal sai; slashing, stabbing, battery, etc.
  • Power Absorption: Ace Killer can absorb energy from other beings to copy their powers. The stolen energy and corresponding beam weapon takes the form of a light red beam of energy that is absorbed by the emerald gemstone on Ace Killer's chest, with the exception of Jack's Ultra Bracelet, which Ace Killer simply confiscated and equipped.
  • Armored Hide: Ace Killer's body was created specifically to endure the power of Ultraman Ace's weapons, like the Metalium Beam. Attacks like these don't even cause him to flinch.
  • Talons: Ace Killer's left hand is armed with talons over his fingers.

Ace Killer
Ace Killer Charged

Ace Killer

  • Height: 40 m
  • Weight: 43,000 t
  • Origin: Planet Golgotha, Beastar Celestial Sphere (Killer the Beastar)
Powers and Weapons
  • Emerium Beam (エメリウム光線, Emeriumu Kōsen): After absorbing Ultraseven's energy, Ace Killer gained the ability to emit a yellow Emerium Beam from the red area on his forehead. It has the same strength as Ultraseven's.
  • Spacium Beam (スペシウム光線, Supeshiumu Kōsen): After absorbing Ultraman's energy, Ace Killer gained the ability to emit a yellow Spacium Beam by crossing his arms in a "+" shape. It has the same strength as Ultraman's.
  • Ultra Bracelet (ウルトラブレスレット, Urutora Buresuretto): After stealing Ultraman Jack's Ultra Bracelet, he equips it to his left arm. Ace Killer uses it in a similar fashion as Jack when he throws it to slice foes. Ace Killer's use of the bracelet appears to match the Bracelet Bomb ability Jack's Ultra Bracelet has, as it will explode on contact with opponents then return to Ace Killer's arm.
  • M87 Beam (M87光線, Emu Hachi-Ju Nana Kōsen): After absorbing Ultraman Zoffy's M87 energy, Ace Killer can create a large ball of M87 energy with his hands and toss it at his foes. Despite being titled a "beam", the attack is fired as an energy blast. Ultra Adventure would see him firing it in a standard beam attack.
  • Battle Sai: Ace Killer is equipped with a large sai, which he holds in his right hand. It can be used as a normal sai; slashing, stabbing, battery, etc.
  • Armored Hide: Ace Killer's body was created specifically to endure the power of Ultraman Ace's weapons, like the Metalium Beam. Attacks like these don't even cause him to flinch.
  • Talons: Ace Killer's left hand is armed with talons over his fingers.
Ultraman Festival 2006
  • Ultra Lance (ウルトラランス, Urutora Ransu): A copy of Jack's signature weapon (transformed from Ultra Bracelet), he obtained it thanks to Yapool's modification.
  • Strium Beam (ストリウム光線, Sutoriumu Kōsen): Ultraman Taro's signature finishing move, this is obtained thanks to Yapool's modification.
  • U-Killersaurus' limbs: When engaging in a fight against the Ultra Brothers, his limbs changed to resemble U-Killersaurus.
Ultra Adventure
  • Ultra Slash (ウルトラスラッシュ, Urutora Surasshu): Ultraman's buzzsaw disc attack.
  • Pincer Claw: After losing its left arm claw in fighting King Joe Black, Yapool replaced it with a pincer for its substitute.
  • Killer Marionette (キラーマリオネット, Kirā Marionetto): A tag-team attack with Giant Yapool. Giant Yapool charges Ace Killer with purple aura energy for the latter to perform a screwdriver attack towards the target.
  • Calamity Shot (カラミティショット, Karamiti Shotto): Ace Killer unleashes a plethora of the Ultra Brothers' stolen attacks, in the same order as his fight with Ace Robot.
Ultraman Club: Fight! Ultra Brothers!
  • Fireball: Ace Killer can shoot fireballs.
  • Energy Blast: Ace Killer can shoot purple energy blasts in bursts in three. This attack is possibly inspired by the M87 Beam.

Remodeled Ace Killer
Re Ace Killer
  • Height: 40 m
  • Weight: 43,000 t
  • Origin: N/a
Powers and Weapons
  • Armored Hide: Ace Killer is able to withstand Zoffy's M87 Beam.
  • Flaming Car Tactic (火炎車戦法, Kaen-sha Senpō): A combination technique used alongside all of the revived Remodeled battalions of the Gua Army. To do this, Ace Killer and the Remodeled battalions form a circle to trap their targets and run around to create a whirlpool of fire.

Ace Killer (BS)
Ace Killer BS
  • Height: 40 m
  • Weight: 43,000 t
  • Origin: Beastar Celestial Sphere (Killer the Beastar)
Powers and Weapons
  • Ace Killer's Abilities: Being a direct copy of Ace Killer, this unit has all the abilities of its predecessors.
    • Spacium Beam (スペシウム光線, Supeshiumu Kōsen): Ultraman's original finishing move. Despite attempting to do so, it was interrupted before it can actually fire one.
    • Armored Hide: Ace Killer's body can endure multiple punishments, at the very least going toe-to-toe with a weakened Glen Fire before it explodes.
    • Talons: Ace Killer's left hand is armed with talons over his fingers.
  • Mebius Killer's abilities: Although not shown, the 2013 All Monster Photobook stated that Ace Killer (BS) possessed the knowledge of Mebius Killer's tactics, hence wearing the Mebius Brace on his right arm.

Ace Killer (Uncharged)
Ace Killer Second

Ace Killer

Powers and Weapons
  • Power Absorption: Ace Killer can absorb energy from other beings to copy their powers. This was done through Gadiba to gain Ultraman Mebius' powers.
  • Armored Hide: The second Ace Killer's body is just as tough as the first being able to resist most attacks from Ultras such as Ultraman Ace's Punch Laser.
  • Talons: Ace Killer's left hand is armed with talons over his fingers.
  • Dimensional Travel: Ace Killer II can travel through different dimensions at will by making a hole in the sky, which seems to shatter like glass. The sky will piece itself together when he leaves or enters the hole.

Mebius Killer
Mebius Killer

Mebius Killer

Powers and Weapons
  • Talons: Mebius Killer's left hand is armed with talons over his fingers.
  • Mebius Brace (メビウスブレス, Mebiusu Buresu): Mebius Killer possessed a copy of the Mebius Brace on his right gauntlet. This is hard to see since the color is gold, which matches is gauntlets. The Crystal Circle is replaced with the Killer Crystal (キラークリスタル, Kirā Kurisutaru), the same component from Mebius Killer's chest.
    • Mebium Shoot (メビュームシュート, Mebiūmu Shūto): Mebius Killer can perform the Mebium Shoot by placing his left palm over the Mebius Brace, then extends them in different directions horizontally, and then brings them together above his head, creating an "infinity loop." Then, putting his hands in the "+" shape, Mebius Killer can fire the beam. Matches Ultraman Mebius' in power.
    • Mebium Blade (メビュームブレード, Mebiūmu Burēdo): Mebius Killer can create a blade much like Ultraman Mebius'. From the green pendant on his right hand, a yellow blade can form. Perfect for slashing and cutting. Matches Ultraman Mebius' in strength.
    • Mebium Burst (メビュームバースト, Mebiūmu Bāsuto): Mebius Killer can also perform the Mebium Burst. Mebius Killer creates a large ball of fire in his hands and then hurls the fireball at his foes. Matches Ultraman Mebius' in power.
  • Armored Hide: The second Ace Killer's body is just as tough as the first being able to resist most attacks from Ultras such as Ultraman Ace's Punch Laser.
Ghost Rebirth
  • Mebium Slash (メビュームスラッシュ, Mebiūmu Surasshu): Mebius Killer can fire purple arrow-shaped blasts from his palms.

Kabuto the Killer
Kabuto the Killer Full
  • Height: 40 m
  • Weight: 43,000 t
Powers and Weapons
  • Claw Hand: Kabuto the Killer's left arm is equipped with a claw.
    • Claw Slicer (クロー・スライサー, Kurō Suraisā): Using its left pincer claw, Kabuto delivers a continuous slash to his target.
  • Absorption: Kabuto the Killer can absorb energy from other beings to copy their powers.
  • Emerium Beam (エメリウム光線, Emeriumu Kōsen): Through Ultraseven's energy, Kabuto the Killer gained the ability to emit a yellow Emerium Beam from the yellow horn on his forehead. It has the same strength as Ultraseven's.
  • Ultra Spark (ウルトラスパーク, Urutora Supāku): Ultraman Jack's weapon.
  • Space Q (スペースQ, Supēsu Kyū): By combining the stolen Ultra Brothers' finishing movements, Kabuto can concentrate it into the very same attack that Ace used to kill Ace Killer in the past. Unfortunately the only time he used it contributed to his defeat as Taro absorbed the attack to empower his Ultra Dynamite into the Cosmo Miracle Dynamite.
  • Mebium Shoot (メビュームシュート, Mebiūmu Shūto): Kabuto the Killer can perform a copy of Mebius' finishing movements.
  • Knight Shoot (ナイトシュート, Naito Shūto): Ultraman Hikari's finishing move.

Ace Killer
Ace Killerr

Ace Killer

Powers and Weapons
  • Emerium Beam (エメリウム光線, Emeriumu Kōsen): Copied from Ultraseven, Victory Killer gained the ability to emit a blue Emerium Beam from the red area on his forehead.
  • Spacium Beam (スペシウム光線, Supeshiumu Kōsen): Copied from Ultraman, Victory Killer gained the ability to emit Spacium Beam by crossing his arms in a "+" shape.
  • M87 Beam (M87光線, Emu Hachi-ju Nana Kōsen): Copied from Zoffy, Victory Killer can fire his own M87 Beam by simply performing a similar hand movement.
  • Power Absorption: Ace Killer can absorb energy from other beings to copy their powers.
  • Armored Hide: Victory Killer's body is able to resist most attacks from Ultras such as Ultraman Ace's Ultra Guillotine.
  • Talons: Victory Killer's left hand is armed with talons over his fingers.

Victory Killer
Ace Killerr

Victory Killer

Powers and Weapons
  • KillerTrans (キラートランス, Kirātoransu): After obtaining the data of Ultraman Victory, Victory Killer can perform the same Ultlance technique that the Ultra uses via Spark Dolls. Unlike Victory, the KillerTrans announcement was different from the original voices of Victory Lancer.
    • EX Red King Knuckle (EXレッドキングナックル, EX Reddo Kingu Nakkuru): Victory Killer changes his right arm into EX Red King's arm.
      • Magma Shock (マグマショック, Maguma Shokku): An analogous ability to EX Red King's Flame Road. By smashing the EX Red King Knuckle into the ground, Victory Killer can summon a series of massive eruptions capable of dealing damage to even the strongest of opponents.
    • King Joe Launcher (キングジョーランチャー, Kingu Jō Ranchā): Victory Killer turns his right arm into the robot's Pedanium Launcher, using it to fire multiple energy blasts at the opponent.
    • Eleking Tail (エレキングテイル, Erekingu Teiru): Victory Killer turns his right arm into an Eleking tail. He can use it like a whip and slam against the opponent. First used on Ultraman Ace, slamming him into submission without a chance of retaliation. Compared to Ultraman Victory, Victory Killer's Eleking Tail is always glowing yellow energy.
    • Gudon Whip (グドンウィップ, Gudon Uippu): Victory Killer turns his right arm into a Gudon whip. He uses it to whip the opponent multiple times.
    • Sadola Scissors (サドラシザーズ, Sadora Shizāzu): Victory Killer turns his right arm into a Sadola claw. Using its pincer, Victory Killer is capable of countering minor swordsmanship skills of Victory Knight.
  • Power Absorption: Yapool stated that he can continue to add powers to Victory Killer by using Ultraman Victory Knight's data.
  • Armored Hide: Victory Killer's body is able to resist most attacks from Ultras such as Ultraman Ace's Ultra Guillotine.
  • Talons: Victory Killer's left hand is armed with talons over his fingers.

Ultimate Killer
Powers and Weapons
  • Bio Memory: According to Yapool, Terrible-Monsters that the past Ultras had fought all share his grudges, which he also transmitted to Ultimate Killer. This allows the robot to imitate the Ultras' attacks from simply recollecting the Terrible-Monsters' fights with them, in addition to the past abilities of Ace Killers' models.
  • KillerTrans (キラートランス, Kirātoransu): Like Victory Killer, Ultimate Killer can imitate Ultraman Victory's Ultlance ability.
    • Shepherdon Saber (シェパードンセイバー, Shepādon Seibā): Ultimate Killer can summon Ultraman Victory's sword.
  • Spacium Beam (スペシウム光線, Supeshiumu Kōsen): Ultimate Killer can use Ultraman's Spacium Beam.
  • Ultra Bracelet (ウルトラブレスレット, Urutora Buresuretto): Ultimate Killer can imitate Ultraman Jack's Ultra Bracelet, although not physically visible. He appears to use Jack's Bracelet Chop with it.
  • Strike Boost (ストライクブースト, Sutoraiku Būsuto): Ultimate Killer can use Ultraman Geed Solid Burning's signature attack, with smoke emitted from him as he does so. This was a result of recollecting Thunder Killer's fight with Ultraman Geed, more specifically the Ace Killer capsule.
  • Victorium Slash (ビクトリウムスラッシュ, Bikutoriumu Surasshu): Ultimate Killer can use Ultraman Victory's Victorium Slash.

Z Killer
F2- KA0bIAAN6x5
Powers and Weapons
  • Talons: Z Killer's left hand is armed with talons over his fingers.
  • Space Martial Arts (宇宙拳法, Uchū Kenpō): Due to possessing data from Ultraman Z, Z Killer uses the same fighting style as Z’s Alpha Edge form.
  • Zestium Beam (ゼスティウム光線, Zesutiumu Kōsen): Z Killer can copy Z's signature Ultra Beam, fired from his arms in a "+", but fires it from his left arm instead of his right.

Other Media

Ultra Super Legend

The Ultra Super Legend manga portrays the Remodeled Ace Killer in the same way as the magazine version of the Andro Melos. However, its only scene was throwing Zoffy into the black hole and defeated by Andro Melos (also Zoffy adopting a new identity). The manga also expands its sole agenda to assassinate the Ultra Brothers one by one.


  • In Shinji Imura's version of the manga, Remodeled Ace Killer is capable of speaking in perfect sentences and is willing to use dirty tactics such as putting hostages in line. Its sole appearance here was to cover up its obscure appearance in the magazine of a similar story.

Ultraman Festival 2006

In the second live stage, an enhanced Ace Killer was sent to Earth alongside Verokron. In addition to all four Ultra Brothers' finishers from Ace, he can also manifest Jack's Ultra Lance and Taro's Strium Beam. In the climax of fighting the Ultra Brothers, Ace Killer's limbs transform to resemble U-Killersaurus.

Mega Monster Battle: ULTRA MONSTERS

Kabuto the Killer scan

Kabuto the Killer as a winning entry from the October 2007 issue of Televi-kun

The Ace Killer, Tyrant, and Vakishim were sent by Yapool to attack Io Mikura and destroy his Battlenizer. As with all three monsters, he was killed by the player's choice of card.

In the NEO edition, he was deployed by Giant Yapool to destroy Ai Asama/Kanegon's Battlenizer in order to prevent Alien Reiblood's revival. Likewise, he is also defeated by the player's choice of monster.

In the Galaxy Saga mode story, Yapool created Kabuto the Killer (カブト・ザ・キラー, Kabuto za Kirā) as an assassin sent to modify history. Kabuto went into the past where his first incarnation's fight with Ultraman Ace took place in Planet Golgotha and successfully crucify the Ultra. Mega Monster Battle: ULTRA MONSTERS


  • Voice actor (Kabuto the Killer): Ryoichi Tanaka
  • Kabuto the Killer was a fan redesign of Mebius Killer created as part of a contest for Bandai's Toyline. In contrast to his original appearance, Kabuto the Killer has crab-like claws and his body design resembles that of a Samurai.

Televi-kun Ghost Rebirth

Instead of Mebius Killer, Yapool created Kabuto the Killer as his new body to operate and leads an army of Inpelaizers to capture the Ultra Brothers. Using the stolen powers, Kabuto merged them into Space Q and hurl it towards Taro, but the latter used his training of Ultra Horn with his father to absorb the attack and created the Cosmo Miracle Dynamite to defeat the armored robot. With Deathrem, Kabuto leads an army of Terrible-Monster to fight the brothers. Upon his defeat, the Giant Yapool reveals himself.


  • Instead of simply being a possession, Kabuto the Killer acted as if he is a living shell/disguise for Yapool and nothing more.

Ultraman Belial THE STAGE Super Strongest! Belial Galactic Empire

In a stage show taking place a day before Ultraman Zero : The Revenge of Belial, Mebius Killer accompanied Darkgone under Yapool's orders to enslave Belial as his minion. Unfortunately, Mebius Killer was stabbed by Darkgone's Gone Blade when he becomes interested in joining Belial's forces.

Ultraseven Fan Meeting: Ultra Hero Show

In one of the stage shows held during a Dan Moroboshi meetup event[4], an Alien Raybeak by the name of Dan comes to Earth in search of parts to complete his peace-keeping robot Pisuke (ぴーすけ, Pīsuke) (a pun on the literal translation of the word "peace") and in the process, ropes Ultraman Orb into helping out.

Dan makes Orb don an armor which first helps him out in defeating Chandlar by granting him a power boost, but this eventually turns out to be an energy-draining device to power Pisuke, now known as Orb Killer (オーブキラー, Ōbu Kirā). On top of the powers of Ace Killer, Mebius Killer, and Victory Killer, Orb Killer was also granted the abilities of Ultraman Orb Hurricane Slash, alongside the Killer Slugger Lance (キラースラッガーランス, Kirā Suraggā Ransu), a copy of the Orb Slugger Lance.

Afterward, it was revealed that Yapool was possessing Dan all along, who then takes control of Orb Killer. However, through the combined efforts of Ultraman Orb, Ultraman Ace, and Ultraseven, Orb Killer was eventually beaten.

6 Ultra Brothers THE LIVE -Featuring Zoffy-

Yapool sent Victory Killer to defeat Ultraman Victory Knight. Using KillerTrans, Victory Killer obtained the Shepherdon Saber and fought Victory while utilizing the Ultra Brothers' abilities whenever Yapool commanded it. Yapool then revealed that this Victory Killer possessed the abilities of many more Ultras through the hatred that had been amassed within the cells of Yapool that made up the Terrible-Monsters, using Ultraman Geed Solid Burning's Strike Boost to demonstrate. Deciding that its name no longer fit, Yapool decided then to rename Victory Killer to Ultimate Killer (ウルティメイトキラー, Urutimeito Kirā). Yapool boasted that as long as the Ultras continued to fight him, his data on them would only increase. In response, Victory Knight declared that Yapool's arrogance was his greatest weakness and that he would never overcome the bonds between Ultras. Ultimate Killer then used a Victorium Slash, which Victory dodged before slamming his Knight Timbre into the ground to hit his enemy with a shockwave, allowing him to escape.

Later, Ultraman Ace and Victory fought Ultimate Killer and various other monsters sent by Yapool, and were in trouble until Zoffy arrived and reminded Ace of his Ultra Guillotine, which he used to knock some of their opponents away. Zoffy then summoned the Galactic Federation to aid them. Victory confronted Ultimate Killer and Alien Kettle simultaneously, eventually stealing back the Shepherdon Saber. By dual-wielding his two swords, he succeeded in defeating Ultimate Killer and Alien Kettle. 6 Ultra Brothers THE LIVE -Featuring Zoffy-


  • Ultimate Killer has the same appearance of the original Ace Killer, including its green, jewel-like eyes.
  • When speaking about the new abilities that Ultimate Killer possessed, images of Orb's fight against Aribunta, Geed's fight against Thunder Killer, Rosso and Blu's fight against Aribunta and Victory's fight against Vakishim are shown.


Ultraman Ace Kaiju
Verokron | Yapool | Chameleking | Vakishim | Garan | Aribunta | Giron Man | Brocken | Alien Metron Jr. | Doragory | Muruchi II | Gammas | Zaigon | Alien Antira | Unitang | Sabotendar | Baraba | Ace Killer | Ace Robot | King Crab | Cattle God | Cowra | She-Devil | Hotarunga | Black Pigeon | Android Couple | King Kappa | Zemistlar | Aprasar | Aprasar Fairy | Space Mask | Black Satan | Giant Yapool | Mazaron Man | Yojo | Mazarius | Alien Orion | Sphinx | Alien Hipporit | Lunaticks | Undergroundmon | Gitagitanga | Red Jack | Baktari | Coakes | Bad Baalon | Kaiteigagan | Dreamgillas | Soundgillar | Machless | Snowgiran | Namahage | Alien Fire | Firemons | Alien Steal | Kaimanda | Shishigoran | Iceron | Woo II | Fubugirara | Onidevil | Gasgegon | Daidarahoshi | Hanzagiran | Verokron II | Yapool Woman | Univerlages | Aquarius | Alien Revole | Signalion | Geegon | Alien Simon | Jumbo King
Andro Melos Kaiju
Andro Melos Juda | Mold | Gina | Alien Magma | Dakumiran | Bazelia | Shizurun | Gyeronia | King Joegue | Bemzn | Zabiden | Mecha Baltan | Alien Epu Erupa | Edoras | Gua | Gua Soldiers
Ultra Super Legends Remodeled Gora | Remodeled King Joe | Magma Trio | Remodeled Alien Magma | Remodeled Black King | Ace Killer | Remodeled Ace Killer | Alien Baltan | Mecha Baltan | Alien Nackle | Cyborg Juda | Boa | Cicada Human | Gigan | Nokogilin | Gomora | Alien Mefilas | Giradorus | Zumbolar | Alien Tsuruk | Alien Akumania | Alien Flip | Grand King
Ultraman Fighting Evolution Kaiju
Ultraman Fighting Evolution Alien Baltan | Gomora | Dada | Zetton | Eleking | Alien Metron | King Joe | Ace Killer | Alien Magma
Ultraman Fighting Evolution 2 Alien Baltan | Dada | Alien Magma | Tyrant | Yapool | Bemstar | Ace Killer | Giras Brothers | Zetton | King Joe | Gomora
Ultraman Fighting Evolution 3 Alien Baltan | King Joe | Bemstar | Ace Killer | Tyrant | Alien Magma | Giras Brothers | Silverbloome | Gomora | Zetton | Dada | Fire Golza | Geozark | Zoiger | Gatanothor | Sufume | Reicubas | Gan-Q Code №00 | Gan-Q Code №01 | Zoruim | Gloker Pawn | Gloker Bishop | Giga Endra | Red King | Gudon | Twin Tail | Vakishim | Evil Tiga | Ace Robot | Delusion Ultraseven | Imit-Ultraman Dyna
Ultraman Fighting Evolution Rebirth Bullton | Gomora | Red King | Eleking | EX Eleking | Kyrieloid | Chaos Kyrieloid | Tyrant | EX Red King | EX Gomora | Bullton II | Phantom-Ultraman Agul | EX Tyrant | EX Tyrant II | Geronimon | Alien Baltan | Waroga | Chaos Waroga | Alien Mefilas | Chaosroid T | Chaosroid S | Chaosroid U | Neo Chaos Darkness | Neo Chaos Darkness II
Ultraman Fighting Evolution 0 Alien Baltan | Zetton | Eleking | Black King | Vakishim | Alien Hipporit | Alien Temperor | Alien Babarue
Ultraman Mebius Kaiju
Ultraman Mebius Dinozaur | Gudon | Birdon | Miclas | Kelbim | Dinozaur II | Sadola | Twin Tail | Bogarl | Lim Eleking | Alien Fanton | C-Pin 929 | Bogarlmons | Dinozaur III | Windom | Dinozaur Reverse | Kodaigon The Other | Mukadender | Insectus | Gromite | Zamsher | Alien Magma | Alien Valky | Saramandora | Bemstar | Daigarugu | Arstron | Kelbim II | Lesser Bogarl | Chronorm | Alien Angel | Yapool | Fire Windom | Vakishim | Doragory | Verokron | Maquette Zetton | Ultraman Mebius (Maquette) | Nova | Maquette Nova | Inpelaizer | Roberuga | Alien Mates | Zoa Muruchi | Femigon Flame | Alien Reflect | Alien Babarue | Angross | Alien Psychokino | Jasyuline | Arigera | Alien Serpent | Sorichra | Sorichran | Roberuga II | Hoe | Gomora IV | Mysterious Saucer fleet | Gadiba | Red King | Gomora Alpha | Mebius Killer | Giant Yapool | Alien Deathre Deathrem | Lunaticks | Alien Groza Grozam | Alien Mefilas III | Gromite II | Alien Empera
Ultraman Mebius Gaiden: Hikari Saga Arb | Bogarl | Bemstar | Alien Babarue
Ultraman Mebius & the Ultra Brothers U-Killersaurus | Yapool | Alien Temperor | Alien Zarab | Alien Guts | Alien Nackle | U-Killersaurus Neo
Ultraman Mebius Gaiden: Super Galaxy Wars Ark Bogarl | Georgon | Alien Endeal | Lesser Bogarl | Eleking | Alien Iyros | Bogarlmons | Alien Magma | Giras Brothers | Inpelaizer | Grozam | Alien Guts | Seagorath | Seamons | Gammas | Dinozaur | Dinozaur Reverse | Alien Chibull
Ultraman Mebius Gaiden: Armored Darkness Saramandora | Mukadender | Roberuga | Kelbim | Armored Darkness
Great Decisive Battle! The Super 8 Ultra Brothers King Guesra | King Pandon | King Silvergon | King Goldras | Super Alien Hipporit | Giga Khimaira | Black Silhouette
Ultraman Mebius Gaiden: Ghost Rebirth Mechazam | Inpelaizer | Alien Mefilas III | Alien Groza Grozam | Alien Deathre Deathrem | Mebius Killer | EX Zetton | Ghost Rebirth
Ultraman Mebius: Anderes Horizont Alien Mates Bio | Matsue | Alien Serpent | Naga | Alien Shaplay | Albino Giradorus | Usual | Shaplay Beast
Ultraman Zero Kaiju
Ultraman Zero: The Revenge of Belial Alien Esmeralda Emerana | Brigante | Legionoid | Iaron | Darkgone | Darklops | Malebrandes | Delust | Pirates of Flames | Two-Dimensional People | Arch Belial
Ultraman Zero Gaiden: Killer the Beatstar Beatstar | Rei's Gomora | Ace Killer | Inpelaizer | King Joe | Rei's Litra (S) | Alien Bat
Ultraman Saga Hyper Zetton | Alien Bat | Sphere | Gubila | Gomess (S) | Arstron | Legionoid | Chaos Header 0 | Lidorias | Bolgils | Mogrudon | Golmede | Mienin | Eligal | Tyrant | Black King | King Pandon | Antlar | Verokron
Ultra Zero Fight Bemular | Telesdon | Gudon | Sadola | Alien Bat Gurashie | Red King | Galberos | Gan-Q | Bemstar | Pigmon Moroboshi-kun | Illusion Ultraman Zero | Alien Mefilas Sly | Alien Hipporit Jatar | Alien Temperor Villainous | Alien Groza Grocken | Alien Deathre Deathlogue | Silvergon | Fanegon People | Tyrant | Armored Darkness | Kaiser Darkness
Ultraman Ginga Kaiju
Ultraman Ginga Alien Valky | Black King | Thunder Darambia | Kemur | King Pandon | Ragon | Doragory | Alien Nackle Gray | Dark Galberos | Zaragas | Red King | Antlar | Jasyuline | Super Grand King | Dark Lugiel | Alien Magma | Zetton
Ultraman Ginga Theater Special Alien Icarus | Tyrant
Ultraman Ginga Theater Special: Ultra Monster ☆ Hero Battle Royale! Kanegon | Alien Baltan | Red King | EX Red King | Telesdon | Dorako | Gomora | Reionic Burst Gomora | EX Gomora | Mecha Gomora | Zetton | Miclas | Snowgon | Yametaranese | Alien Miracle | Mochiron | Alien Akumania | Evil Tiga | Gan-Q | Zamsher | Zoa Muruchi | Bug Rays (Chaos Ultraman, Evil Tiga, Chaosroid S, Chaosroid T, Chaosroid U)
Mountain Peanuts Detton | Jamila | Nosferu | Android One Zero
Ultraman Ginga S Victorian | Alien Chibull Exceller | Android One Zero | Chiburoid | Shepherdon | EX Red King | Eleking | Alien Guts Vorst | Inpelaizer | King Joe Custom | Sadola | Gudon | Yapool | Vakishim | Gomora | Fire Golza | Gan-Q | Five King | Bemular | Bemstar | Doragory | Verokron | Alien Akumania Muerte | Alien Metron Jace | Zoa Muruchi | Birdon | Alien Zetton Berume | Hyper Zetton | Vict Lugiel | Alien Valky | Alien Nackle Gray | Alien Icarus
Ultraman Ginga S The Movie: Showdown! The 10 Ultra Warriors! Etelgar | Eteldummies (Dark Lugiel, Five King, Dark Mephisto, Alien Sran, Alien Empera, Ultraman Belial)
Ultra Fight Victory Aribunta | Giant Yapool | Ace Killer | Victory Killer | Verokron | Vakishim | Doragory | Lunaticks | Shepherdon | Juda Spectre | Super Grand King Spectre