Cerberus

A Cerberus is a three headed hound of darkness, they eat the flesh of the four heroes known as Achilles, Hercules, Perseus and Theseus. They are sub-bosses meaning there bosses but fought several times.

Powers and Abilities
They can breath fireballs from there mouths, they can do an atomic stomp like the Cyclops and can roar a sonic yell to make Beowulf have to shake around the Right Thumbstick.

Mythology
Cerberi were big three headed hell hounds that can run really fast sometimes.