Ace Killer (Ultraman Ace)

Evil-doer
Full Name	Ace Killer
Alias	Mebius Killer Victory Killer
Origin	Ultraman Ace
Occupation	Servant of Yapool
Powers / Skills	Powers and weapons of the Ultra Brothers Superhuman strength Superhuman stamina Intimidation Combat experience Agility
Hobby	Fighting Ultras.
Goals	Defeat Ultraman Ace. Defeat Ultraman Mebius (both failed).
Crimes	Attempted murder Attempted destruction Assault
Type of Villain	Robotic Assassin

Ace Killer (エースキラー Ēsu Kirā), is a robotic assassin and a major antagonist in Ultraman Ace. He served as the main antagonist of the two part episode "Execution! The Five Ultra Brothers" and "The Five Stars That Scattered Throughout the Galaxy", the main antagonist of the forty-third episode of Ultraman Mebius titled "Threatening Mebius-Killer", a major antagonist in Ultraman Mebius Gaiden: Ghost Rebirth, a supporting antagonist in Ultraman Zero Gaiden: Killer the Beatstar, a minor character in Ultraman Ginga, and a supporting antagonist in Ultra Fight Victory. It is a Choju created by Yapool specifically to counter and kill Ace.

Ace Killer returns in Ultraman Mebius, where he is used by Yapool to battle Mebius.

Biography

Ultraman Ace

Ace Killer was created by Yapool to kill Ultraman Ace. After Ace Killer obtained the powers and weapons of the Ultra Brothers on Planet Golgotha, Yapool released Ace Robot, a robot replica of Ultraman Ace to demonstrate Ace Killer's power by having Ace Killer destroy it. The robotic assassin did so mercilessly, whaling on Ace Robot using each of his stolen powers in succession, leaving his opponent in a considerable amount of convincing pain before destroying him with Zoffy's M87 Beam.

Ultraman Ace arrived to rescue his brothers, but he was ambushed by the powered-up Ace Killer. Ace Killer easily overpowered Ultraman Ace with the Ultra Brothers' powers, but the Ultra Brothers used what energy they had left to empower Ultraman Ace. With the combined energy of his brothers, Ultraman Ace was able to use the Space Q technique for the first time to destroy Ace Killer, freeing his fellow Ultras.

Ultraman Mebius

Ace Killer later returned when it was used by Yapool to combat Ultraman Mebius.

Yapool summoned Ace Killer to Earth to battle Mebius. Ace Killer easily had the upper hand in the fight, and things only got worse for Mebius when Yapool had Gadiba merge into Ace Killer to transform him into Mebius Killer. Mebius Killer brutally beat down Mebius. However, some encouragement from Aya gave Mebius the courage he needed to overpower and defeat Mebius Killer, destroying the robot with the Mebium Dynamite move.

Ultraman Mebius Gaiden: Ghost Reverse

After Yapool was revived, he used Ace Killer as a host.

Ultra Fight Victory

Yapool later used Ace Killer again, giving him a copy of Ultraman Victory's UITrans and declaring him Victory Killer. Ace Killer was sent to prevent Ultraman Ace from saving Ginga. Victory Killer was later destroyed by Victory himself and Shepardon.