Slit 50 Satyr throats

Beat the Challenge of the Gods

Execute a 200-hit combo

Watch the movie "Atlas and Persephone" three times

Don't push away Calliope for one minute

Beat the game (Hard Mode)

Kill Persephone

Completely upgrade all weapons and magic

Sacrifice powers

Running across the long chain

Acquire Gauntlet of Zeus

Collect all the Phoenix Feathers

Awaken all three horses