Concrete Man is one of the Robot Masters from Mega Man 9 whose period of use had expired and was scheduled to be scrapped. Concrete Man is a construction robot built to be the supervisor of dam construction. He is stubborn and will tell off any lazy robots.

Magma Man is one of the Robot Masters fromMega Man 9 whose period of use had expired and was scheduled to be scrapped.

Magma Man was built to oversee safety operations and manage a geothermal power plant. He is able to withstand incredibly high temperatures and loves to visit hot spas.

The lavafalls in his stage have the same effect as the laser beams from Quick Man's stage in Mega Man 2, the ignited oil in Flame Man's stage, and the fire beams from Turbo Man's stage in Mega Man 7 wherein they cause Mega Manto die instantly.

Tornado Man is one of the Robot Mastersfrom Mega Man 9 whose period of use had expired and was scheduled to be scrapped.

Before the robot revolt, he was permanently stationed at a weather regulation facility. Dr. Light equipped him with powerful equipment, such as the fans attached to his arms, to allow him to stave off tropical storms.

Hornet Man is one of the Robot Masters fromMega Man 9 whose period of use had expired and was scheduled to be scrapped. Hornet Man was designed to manage a flower park. It was his job to pollinate the flowers using his vast knowledge of flowers from around the world, and he loves gardening. He attacks by releasing robot hornets from the honeycomb in his chest.

Plug Man is one of Dr. Light's Robot Masters fromMega Man 9 whose period of use had expired and was scheduled to be scrapped. Plug Man was created to inspect the quality control in a television factory, strictly inspecting each unit. He is obsessed with gadgets and loves to browse electronic stores like Akihabara and talking with his friends about geeky subjects. His Special Weapon is Plug Ball.

Splash Woman is a Robot Master modeled after a mermaid that Dr. Light created to rescue swimmers and ships lost at sea, being an expert swimmer but having poor land mobility. She possesses a beautiful voice and is fond of karaoke, but it is rumored that she has turned down numerous invitations to enter the world of show business, possibly having a dislike of large crowds. Splash Woman attacks by singing to call fish robots and using her Special Weapon, the Laser Trident, which can emit a laser capable of penetrating tough surfaces such as shields and the hulls of ships.[1

Galaxy Man is one of the Robot Mastersfrom Mega Man 9 whose period of use had expired and was scheduled to be scrapped.

Galaxy Man was designed to work in a space research center where it was his job to instantly calculate the trajectories for rockets. He loves to observe stars and name any new ones that he finds. He seems to have the ability to fly short distances, retracting his arms and legs when he does so, just like Gigabolt Man-O-War's "UFO mode" from Mega Man X8, along with teleportation. Galaxy Man is also able to constantly change colors. His Special Weapon, theBlack Hole Bomb, can be used to suck enemies into a black hole or drain certain enemies' health, similar to the Gravity Well weapon from Mega Man X3. His stage consists of a series of portals.

Jewel Man is one of the Robot Masters fromMega Man 9 whose period of use had expired and was scheduled to be scrapped. Jewel Man was designed to work in a diamond mine where he was in charge of cutting and polishing rocks with dexterity. He likes to receive attention and collect shiny things.

His weapon, Jewel Satellite, has jewels surround Mega Man like a shield. Similar to shield weapons like Wood Man's Leaf Shield, Skull Man's Skull Barrier, Star Man's Star Crash, Junk Man's Junk Shield, and Pump Man'sWater Shield.