Hyperion was one of the twelve Titans of Ancient Greek Mythology and is also the Titan of Light. He is considered to be the second strongest of the Titans, only after Cronus/Saturn.
Hyperion was the lord of light, and known as the Titan of the East.
As Hyperion was known as the Titan of Light, the halo around his body, and its fiery appearance may refer to Helios, the Sun, which Homer sometimes referred to as Hyperion, then separated in the Theogony and Homeric Hymn.
The rings at around the center of this monster's chest is actually a representation of the Solar System complete with planets for each orbit.
However, the planets "Uranus" and Neptune are missing, as they did not have representative "Agent" monsters at the time this card was designed (there are only six rings).