Story related, can’t be missed.
*** Spoiler - click to reveal *** The Dissenter is a Spartan fanatic of Ares, the former, deceased God of War. Once in Sparta, Kratos takes a secret path to the Temple of Ares. Along the way, Kratos will accidentally release the Dissenter who'll release the Piraeus Lion, the gigantic Spartan beast. After slaying the lion you'll have to kill the dissenter and make him regret saying Ares was the true God of War.
Boss Fight - Piraeus Lion's attacks:
Roar: Stuns Kratos.
Paw Swipe: Swings his paw at Kratos.
Grab Biting: Shoves Kratos to ground and bites him repeatedly.
Phase 1:
There's nothing special to say about this fight. The Piraeus Lion is sadly nothing more than an overgrown cat. It only has three attacks and his main attack of his Paw Swipe can be parried with the L1 Button button. Occasionally during the fight he'll roar and stun Kratos. When this happens, simply tab both the L1 Button + R1 Button buttons repeatedly. The same goes with his Grab Biting attack so keep a long distance between yourself and him. Continue to attack him with normal attacks until you're prompted to press the Circle Button button to finish his off.
All credit goes to orginal authors at playstationtrophies.org, and this is merely updating truetrophy fans with these guides.
http://www.playstationtrophies.org/game/god-of-war-ghost-of-...