In God of War III, the giant scorpion that attacks Kratos is called Skorpius.
Skorpius is a massive mechanical-looking creature encountered in the Labyrinth. The battle is one of the game's large-scale set pieces, combining direct combat with attacks against the creature's vulnerable limbs. Kratos must damage its legs before he can expose and attack its more vulnerable body.
The encounter fits God of War III's approach to Greek mythology, which combines mythological names and creatures with an exaggerated fantasy design. Skorpius is not a conventional human-sized scorpion; it is presented as a colossal monster capable of threatening Kratos and the structures around it.
This creature is often confused with other mythological monsters from the series, including the sea monster Scylla and the serpent-like Echidna. Those names refer to different creatures and different games.