Prime Minister Yogoshimacritein (総裏大臣ヨゴシマクリタイン, Sōridaijin Yogoshimakuritain, 46-50) is the
black/gold armored leader of the Gaiark and Earth Pollution Minister Baron Yogorex de Stein's father, playing a part in forcing the Gian Race Engines into the verge of extinction. Overseeing the destruction of the three Braneworlds by Cleaning Minister Kireizky, Yogoshimacritein uses his fallen minion's Infinite Wastebin to enter the Human World, using it as a means to feed from in order for him to use his signature attack Justice Dissolution (正義解散, Seigi Kaisan), which can vaporize those it hits, altering his victim's bodies to a different wavelength that sends them to a subspace reality on Earth. He uses it to take out Hanto Jou, Gunpei Ishihara, and the Go-on Wings, along with their Engine partners, Engine Carrigator, Engine Jum-bowhale, and the ancient Engines.

Yogoshimacritein is the most ruthless of the Gaiark, easily using both Water Pollution Minister Kegalesia and Air Pollution Minister Kitaneidas as human shields if need be. After losing the Infinite Wastebin to the ministers, Yogoshimacritein fatally damages them both before making his way to the Deus Haguruma Magear to power himself up until he is trapped in the Bikkurium chamber by Renn and Saki Rouyama as the gear is destroyed by Sosuke Esumi and the Kankan Mantan Gun (by using the Engine souls of their primary partners in place of the Ancient Engines' for the weapon), causing the entire Hellgaille Palace to collapse around him and for the effects of the Justice Dissolution to cancel out. However, Yogoshimacritein reconstructs himself from his gears and attempts to destroy the city until he is halted by Hanto, Gunpei, and the Go-on Wings.

Once the primary Go-ongers join the fray, Yogoshimacritein enlarges himself in a process called Third Industrial Revolution (第三次産業革命, Daisanji Sangyō Kakumei?) and battles Engine-O G12. Though he is able survive the G12 Grand Prix attack by reconstructing his body again after it is broken apart by the impact, Yogoshimacritein is finally destroyed by the more advanced G12 Final Grand Prix attack. His attacks are Puppet Regime (傀儡傀儡政権, Kugutsu Kairaiseiken) which can turn his subordinates into his puppets, and Ration Provision Bullet (定額給付弾, Teigaku Kyūfu Dan). Like Yogostein, he ends his sentences with "Nari". His name is from the Japanese word for "to pollute" (汚しまくる, yogoshimakuru) and his title based on "Prime Minister" (総理大臣, Sōridaijin).

Yogoshimacritein is one of several old enemies of Super Sentai, revived by the Zangyack Empire in Gokaiger Goseiger Super Sentai 199 Hero Great Battle, he is shown squaring off against GokaiBlue and GoseiBlack.