Mutos Reploid

Mutos Reploids are the animalistic Reploids featured as bosses in the Mega Man Zero series.

Characteristics
While regular Reploids are built to appear human, Mutos Reploids are based on animals and mythological creatures. They stand out for their completely mechanical appearance, and they usually possess skills and weapons not available to ordinary Reploids. The appearance and abilities of each Mutos Reploid are generally related to the tasks they are created for, allowing for an unlimited variety of Mutos Reploids. On a mental level, Mutos Reploids are as humanlike as their regular counterparts; each Mutos Reploid has a unique personality and way of thinking, which can be affected by their personal experiences.

Structure
In the hierarchy of Neo Arcadia, Mutos Reploids integrate the squadrons under the direct command of the Four Guardians, and divided into four armies as commanders.

The Eight Judges
Eight Mutos Reploids integrate the central council of Neo Arcadia, which judges Reploids accused of Maverick behavior. Led by X, they all have human guises which they use for public appearances. They were originally designed for administrative duties before being modified by Dr. Weil.

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

Mega Man Zero
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. When Zero joins the Resistance, many Mutos Reploids are slain by the legendary Reploid. Following the death of Phantom, the Cutting Shadow Squadron is disbanded and the Mutos Reploids of this unit are reassigned to the other squadrons.

When Dr. Weil returns to Neo Arcadia after a century of exile, he modifies the eight judges to become his personal servants, assisting on the efforts to capture the Dark Elf. Although the eight judges are eventually destroyed, Dr. Weil takes over Neo Arcadia and assembles the Einherjar 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
Although Mutos Reploids have been replaced by Pseudoroids, certain Mutos Reploids from the Zero series can be seen in the background.
 * 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 carasol.

Trivia

 * 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.