Mycenae Empire
One of the Great Subterranean Empires.
The Mycenae Empire was an empire that existed between 10,000 and 15,000 years prior to the present day. It operated some of the first known examples of relic mecha, known as Talos. The Mycenae Empire was corrupted by a being known as the Emperor of Darkness. Many of its denizens were transformed into Warrior Beasts, gargantuan cybernetic creatures. Nonhuman creatures were turned into a variety of "support craft" for Warrior Beasts, such as the Kedora, insectlike creatures with the ability to pilot mecha.
The Mycenae Empire's technologies, including the Kedora, the Talos, and its Warrior Beasts, informed the creations used by Amalgam's Dr. Hell to make war on the world.
After Dr. Hell's seeming first defeat, the Mycenae Army attacked with a Warrior Beast Dr. Hell eventually taking the field as one of its commanders.