Gyges is one of three of the Hekatonkheires. Having fifty heads and one hundred arms, massive, deformed creatures that are the sons of Ouranos and Gaia. Gyges is the brother of Briareus and Cottus. Ouranos banished them to Tartarus for their appearance. They helped Cronos defeat Ouranos, only to be banished once again. The cycle completed itself once again, as they helped Zeus overthrow Cronos, and finally became the guards of Tartarus.
In God of War Comics
After arriving on the island where the Ambrosia is being kept, Kratos encounters a waking yet hungry Gyges, one of the three Hecatonchires, who was the island itself and has remained dormant. There he waited, until Kratos returned, during his quest to acquire the Ambrosia once more. The island then revealed that, years ago, in Kratos' first quest for the Ambrosia, a hundred of Gyges' arms were burned off in his battle with Helios' Champion, after which, they vowed vengeance. Kratos, however, escaped the vines of Gyges and revealed that he intended to destroy the Ambrosia left on the island, as disciples of Ares desired to use it to revive their fallen God. Gyges pleaded to Kratos to not destroy the Ambrosia, as it keeps him immortal, but his pleas fell on deaf ears, as Kratos then used the Flames of Apollo on the island, burning it. As Gyges' life ended in agony, the Tree of Life and all its Ambrosia were burned along with him.