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Commander Yammark

From Mega Man Wiki
Maverick Info
MMX6 - Commander Yammark Art.png
Artwork from Mega Man X6.
Stage portrait(s).
General information
Name(s):Commander Yammark
Group(s):Nightmare Investigators
Appearances:Mega Man X6
Game Info
Weapon(s):X6X6 Yammar Option
Weakness(es):X6 Ray Arrow
X6 Rekkoha
Stage(s):Magma Area
Voice (JP):Yoshinori Fujita

Commander Yammark (コマンダー・ヤンマーク) is a Maverick from the X era, appearing as one of the main bosses in Mega Man X6. He is a drone-themed Reploid based on a darner dragonfly, who attacks with a squadron of dragonfly-shaped drones. He is a former forest preservation worker who is now part of the Nightmare Investigators.

In the Games

Mega Man X6

Sprite from Mega Man X6.

Commander Yammark debuts in Mega Man X6 as one of the eight Mavericks on the Stage Select screen. He was built by Gate to support forest preservation, and became the leader of an ecological observation team. One day, he accidentally started a fire that burned down a forest. He wasn't accused for the incident, but some time later, someone sabotaged his flight system, leading to a crash that killed him. However, he was later resurrected by Gate to serve as a Nightmare Investigator.[1]

Commander Yammark serves as the boss of the Amazon Area, observing the Nightmare Insects. He arranges his drones into various attack formations, firing shots and dropping bombs. Defeating Commander Yammark grants Yammar Option to both X and Zero. His weakness is the Ray Arrow or Rekkoha from Infinity Mijinion, which briefly stuns him. A boss attack rematch with Commander Yammark later occurs in the ?????? stage.

Other Game Appearances

Other Media

Official Data

Compendium of Rockman X

MMX6 - Commander Yammark Art.png
Amazon Area Commander Yammark
Weapon: Yammar Option Weakness: Ray Arrow/Rekkoha
Profile: A Reploid for jungle nature conservation projects who is the Investigator in the Amazon Area. He refuses to cooperate with the Maverick Hunters and distrusts Reploid researchers.
Attack: Effect:
Formation Guard Fires shots from the edge of the arena and moves to the opposite side.
Formation Wing Fires shots while moving from one side to the other, flanked by Yammar Option above and below him.
Formation Final Chases the player with Yammar Option following behind.
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Mega Man X Legacy Collection Gallery

MMX6 - Commander Yammark Art.png Commander Yammark
A Reploid created to support forest preservation projects. Yammark functions as the leader of an ecological observation team. In order to ensure the most thorough investigations, he is equipped with independent dragonfly Mechaniloids that act as his eyes and ears.

Behind the Scenes

Developer Commentary

"The concepts for the boss characters were relatively simple, so I was able to take a similarly simple approach to their overall designs. For example, Commander Yammark has touches of a helicopter and its pilot in him, and Metal Shark Player's legs were made to look like the open jaws of a shark." - (Haruki Suetsugu)[2]


Language Name Origin
Japanese Commander Yammark (コマンダー・ヤンマーク) "Commander" refers to his command of drones, while "Yammark" is derived from the Japanese "yanma" (ヤンマ), meaning the Aeshnidae dragonfly family (also known as darners).


  1. Boss info, Mega Man X6. 2001.
  2. MM25: Mega Man & Mega Man X Official Complete Works. 2013.