Story related, can’t be missed.
*** Spoiler - click to reveal ***Callisto was the Spartan mother of Kratos and Deimos. Kratos will run into his mother in the Temple of Poseidon. As she was about to reveal the name of Kratos' father, she transformed into a hideous beast.
Boss Fight - Callisto’s attacks:
Arm Slam Combo: Standard two slam combo attack.
Charge: Charge attack that will grab you and followed up by ferocious biting
Grab Throw: Reach out to grab Kratos and then throws him against a wall.
Phase 1:
There are no phases to this battle but Callisto is very similar to the Cyclops enemies. Callisto does nothing but swings her arms at the ground, charges, or grabs you to throw you against a wall. It's extremely important to take note that all her attacks are completely unblockable, so you'll have to dodge with the Right Stick button frequently. When the match starts take advantage and have Callisto destroy the pillars around the arena. You'll want them all destroyed so you can focus staying around the center of the arena. Simply attack her with the Blades of Athena's basic attacks and continue to dodge her moves. If Callisto does manages to grab you with her Charge attack you'll have to repeatedly press both the L1 Button + R1 Button buttons to break free and the beat the crap outta of her with the Square Button or Triangle Button buttons, then press the prompted button that follows to throw her across the room (this move can kill her if she's weaken enough). Eventually when she's knocked out, go up and finish her off by pressing the Circle Button button.
User Wayens has tested this solution and has found blocking is possible except from grabs, this ofcourse could be higher skilled based, if you suck at blocks and parries rolling might still be best option. Thanks Wayens!
All credit goes to original authors at playstationtrophies.org, and this is merely updating truetrophy fans with these guides.
http://www.playstationtrophies.org/game/god-of-war-ghost-of-...