Gosei Ultimate (ゴセイアルティメット, Gosei Arutimetto) is a giant machine that focuses the powers of the five Miracle Gosei Headders, hidden in the foundation of the newly rebuilt Heaven's Tower. Its flying MachineMode (マシンモード, Mashin Mōdo) is able to transform into a giant robot armed with the twin Ultimate Swords (アルティメットソード, Arutimetto Sōdo). Gosei Ultimate's final attack is the Ultimate Strike (アルティメットストライク, Arutimetto Sutoraiku). It was first introduce in Epic 32.
After combining with Gosei Ultimate, Gosei Great becomes Ultimate Gosei Great (アルティメットゴセイグレート, Arutimetto Gosei Gurēto), latching to the bottom of Gosei Ultimate to use it as a jet pack to increase its flying speed while using its Ultimate Swords. However, standing on the back of Gosei Ultimate and combining the Ultimate Swords into a bow, Gosei Great can execute the Ultimate Great Strike (アルティメットグレートストライク, Arutimetto Gurēto Sutoraiku), firing an arrow that multiplies while hitting its target.