Mutos Reploid

Mutos Reploids (ミュートス・レプリロイド) are the therianthropic Reploids featured as bosses and sub-bosses in the Mega Man Zero series.

Description
Mutos Reploids are special Reploids created by Neo Arcadia to protect humans, their designs being based on mythological creatures to better exude their essence as guardians. To protect humanity, Mutos Reploids possess advanced skills and weapons not available to ordinary Reploids. Their aesthetic and practical traits are generally determined by, and allude to, the tasks each Mutos Reploid was created to perform, or a particular elemental force drawn upon during battle, resulting in a potentially unlimited variety of forms. Mentally, Mutos Reploids are as humanlike as the standard Reploids; each Mutos Reploid has a unique personality and way of thinking, which can be affected by their personal experiences.

The concept of animal-based Reploids acting as protectors of humanity was not new, since many animal-based Reploids acted as members of organizations like the Maverick Hunters and Repliforce before the Elf Wars, so it can be concluded that the Mutos Reploids were a simple evolution of this concept.

Minions of the Four Guardians
According to the hierarchical conventions of Neo Arcadia, Mutos Reploids serve as the elite soldiers and chief lieutenants to the Four Guardians within the four armies commanded thereby.

The Eight Judges
At the pinnacle of Neo Arcadia's judiciary were initially placed eight Mutos Reploids known as the Eight Gentle Judges, tasked with establishing the guilt and passing sentence on Reploids accused of Maverick behavior, each dawning a more human form whenever appearing before the public.

Einherjar
This group of Mutos Reploids is assembled by Dr. Weil under the command of Craft to carry out Operation Ragnarok.

Mega Man Zero series
Mutos Reploids were created by Neo Arcadia to serve as the protectors of the human race. However, under Copy X's leadership, they become ruthless enforcers who dispose of Reploids labeled Mavericks by Neo Arcadia, making them the primary enemies of the Resistance. Over the course of Zero's activities with the Resistance, he slays many Mutos Reploids along with the Guardian Phantom, whose Cutting Shadow Squadron is disbanded thereafter, the Mutos Reploids of the unit being reassigned to the other squadrons.

With the death of Copy X Mk. II, and the assumption of the mastery of Neo Arcadia by Dr. Weil, the remaining Four Guardians are relieved of command, and the Judges, having been modified by Weil, become known as Weil's Numbers and are placed in command of Neo Arcadia's various environs.

After the defeat of Weil's Numbers by Zero, Dr. Weil retakes Neo Arcadia and assembles the Einherjar Eight Warriors for Operation Ragnarok, a plan to destroy Area Zero in order to make Neo Arcadia the only habitable place in the world. The Einherjar are vanquished by Zero, who sacrifices his own life to save Area Zero from Dr. Weil.

Mega Man ZX series
The fate of the Mutos Reploids after the events of Mega Man Zero 4 is unknown, as their status is not accounted for in the Mega Man ZX series. However, it is possible that the ones in Neo Arcadia were obliterated by Ragnarok.

Although Mutos Reploids have been replaced by Pseudoroids as the eight bosses, certain Mutos Reploids from the Mega Man Zero series can be seen in the background as easter eggs:
 * Hyleg Ourobockle's body can be found in Area A, near the point where Giga Aspis is defeated.
 * Childre Inarabitta's body can be found deep in Area F.
 * Aztec Falcon's body appears in the amusement park of Area H as one of the horses in the carrossel.

Also, four of the Eight Gentle Judges and four members of the Einherjar Eight Warriors appear as secret bosses in Area N.

List of Mutos Reploids
Mutos Reploids that appeared in the series.

Mega Man Zero

 * Anubis Necromancess
 * Aztec Falcon
 * Blizzack Staggroff
 * Maha Ganeshariff
 * Hanumachine
 * Asura Basura
 * Herculious Anchus

Mega Man Zero 2

 * Hyleg Ourobockle
 * Poler Kamrous
 * Panter Flauclaws
 * Phoenix Magnion
 * Burble Hekelot
 * Kuwagust Anchus

Mega Man Zero 3

 * Blazin' Flizard
 * Childre Inarabitta
 * Devilbat Schilt
 * Deathtanz Mantisk
 * Cubit Foxtar
 * Glacier Le Cactank
 * Volteel Biblio
 * Tretista Kelverian

Mega Man Zero 4

 * Fenri Lunaedge
 * Heat Genblem
 * Mino Magnus
 * Noble Mandrago
 * Pegasolta Eclair
 * Popla Cocapetri
 * Sol Titanion
 * Tech Kraken