Mammalian Warrior Beast Galgania and SuperHuman Warrior Beasts Alekteus were the tag team duo that saw action on episode 27 of the Great Mazinger Anime, in where they were under the command of the Great General himself.

Galgania had a bovine-like appearance, with thick purple armor covering his body and a panther-like face with large sharp fangs, and a large pair of yak-like horns and smaller pair of yellow just underneath. He had hoofed feet and a thin tail, his body had several large yellow spikes across it and he had an orange underbelly. The Large yellow spikes across his body acted as missiles, he could ram with his horns and used his tail like a whip. His true face is located in the back, which becomes visible when Galgania's head is lowered. He is one of the few Beasts that it is not destroy by the any of the shows Mechas.

Alekteus was a large humanoid that had and orange helmet and chest armor, the helmet had two large spikes on the sides and a larger crescent shaped spike on his head it also exposed pale brown skin. His two red true faces were located on either side of his chest, but was one of the few Warrior Beasts to contain the Human brain that operated it was in the head. He had spikes on either shoulder and large boots. On his left hand was a gigantic sickle and a set of spikes on the other. Alekteus had a scythe for a right hand and hand spikes for close combat on the left, this been a missile launcher in on itself, he could fly, fire electrical bolts from his cheek spikes and shoulder spikes and had three missiles in each knee.

The Great General is sent out to attack the Science Fortress, as this still under repairs, he chooses to take Alekteus and Galgania on the Mikelos for the new assault. On his way, he discusses with Janus the line of attack, and she discovers that two thirds of Great's Weaponry require the use of his arms to implement them. Removing these would only allow him to use the Great Burner, Photon Beam, Pectoral Missile and the Rust Hurricane. The General set Janus in charge of the operation and the two Warrior Beasts are unleashed, these are detected and Great is launched to confront them.

Great Mazinger arrives on their last known position, and confronts Galgania (unbeknownst to him, Alekteus is hiding close by) and Great fires his rocket punches, Alekteus attacks and blast the base of his right arm, preventing the Right Punch to re-dock. Alekteus then avoids the Thunder break, but Galgania rams Great. He fires his remaining Rocket Punch, but is cut down by Alekteus – without his arms, Great is now pin down and outmaneuver by the Warrior Beasts. Venus is launched to assist, but is knocked out by Alekteus when she drops her Guard. The Great General orders Galgania to rendezvous with the Mikelos to attack the lab, while Alekteus finished the job. When the Mikelos and Galgania arrive, the base tries to defend itself, but the barrage from two sides makes the situation difficult as the Great General sent out an ultimatum to Enzo Kabuto to surrender in three minute, threatening the lives of Tetsuya and Jun, Borot tries to help but is Tail whip into the canyon wall by Galgania. Enzo concedes, but Tetsuya and Jun recover conscious to continue to fight, Kabuto makes a turn around and the assault on the lab is reignited. In the middle of the assault, the lab's defenses destroy Galgania and Alekteus takes out Venus A, but Great destroy the Beast Missile Launcher with Rust Hurricane, as the Lab recovers the Force Field Functionality on time to block Mikelos attempt to crush it and destroying the Bottom Rotor. Mikelos lands next to it and continues to use it weapon to barrage the Lab down.

Prof. Kabuto orders Shiro and the rest of the staff to abandon the lab, as it will use it to ram it onto the Mikelos. Shiro and the Staff do so as the Fortress sails on its suicidal run with Kabuto on the controls. Meanwhile, Alekteus makes one last attempt to kill Great, but is dispatched when the Great Sword is use as an improvise missile, stabbing it in the Chest. Great then finishes off with the Great Burner, he then takes off to assist the lab, using its Great Burner on the Mikelos – the Great General orders the retreat and set the blame on both the Emperor and Janus for the strategy, as Janus blames him for the turn of events.