Machine Onslaught Empire Matrintis
Matrintis's names come from movies that feature robots. Another naming quirk of Matrintis is that their names feature non-Japanese characters. The name "Matrintis" is itself a portmanteau of the title of the films The Matrix and Atlantis, referencing their origins from beneath the sea. Matrintis was an ancient empire that sank into the sea 4500 years ago. However, in 2010, Matrintis resurfaces and used the likes of Warstar and the Yuumajuu to get an advantage over the Goseigers before beginning their plan to enslave humanity. The Matrintis Empire's forces are based in the Machine Fortress Terminel.

Robogogu of the 10sai
Robogogu is the emperor of Matrintis, who 4500 years ago was banished, along with the rest of his empire, beneath the ocean. He believes all organic life has no purpose other than to to serve machines. He possesses the Kisai Brain ability. He is named after RoboCop and modeled after a sea angel.

Metal Alice of the Agent
Metal Alice is Robogogu's personal attendant and the marshal of Matrintis who is the first high spec Matroid built by her master to serve him. In battle, she calculates any factor and uses previous battle data to enhance specs on Matroid designs. She wields the Alice Pad with a spear-like weapon mode that allows her to summon the Bibi Soldiers and the Bibi Bugs to fight for Matrintis and converts the Bibi Bugs into the Bibi Nails to enlarge the Matroids. She is named after Metropolis and modeled after a basket star.

Bred-RUN of the Cyborg
Bred-RUN is the revived form of Warstar/Yuumajuu member Buredoran, turned into a cyborg by Robogorg and made into the newest member of the Matrintis Empire with his memory wiped out save his name and hatred for the Goseigers. As a result, Bred-RUN is more of a team player and secretly perfected to be an ideal Matroid and serve as Robogorg's trump card against the Goseigers. His weapons are the BuredoLaunchers in his shoulders and the Buremerangs that he uses as close-range weapons. It would turn out that Robogorg copied Bred-RUN's original memory and keep it on his person for analysis on the Goseigers. By the time he learns of this, Bred-RUN is used by Robogorg in a scheme to cripple the Goseigers and Gosei Knight that drained of most of his energy as a result. However, Bred-RUN regained his memories prior to the battle thanks to Metal-A and had manipulated the fight's events so Robogogu's body would be heavily damaged by the Goseigers so he can personally finish the job. He then destroys Metal-A before leaving the Goseigers in shock. Taking the Terminel as his base of operations, Bred-RUN reveals his true nature as Brajira to the Gosei Angels. As a Matrintis member, Buredoran's name includes the English word RUN and is modeled after an ammonite.

Demon Bug Soldiers Bibi
Height: 200 cm to 50 m
Weight: 219 kg to 547.5 tons
Neon green insect footsoliders, they wield one twisted blade each. They are given life through the Bibi Bugs. They are also used by the Matrintis.