Watch out for the legs of the spider trying to pierce you. Press circle repeatedly to get it off from you. Now the battle starts.
BOSS 1A- Poseidon’s Limbs
The boss will attempt to climb. Once it’s up, he will wait for a couple of seconds to launch his Water Gun. Prevent this by hitting its legs as its climbing up. Hit it a few times and do the first QTE.
You see the broken pointy limb of Poseidon? You will have to use that later. In the second phase of this fight, Poseidon’s Limbs will start using Water Gun randomly combining it with its legs. Roll around to evade it and attack when you see a chance. A QTE sequence will start after dealing a certain amount of damage and you will have to press L1 and R2 to open its chest. Now, once Poseidon’s Limbs chest is open, grab that broken piece of its limb and throw it at him. That will end the fight and you will be back in climbing Gaia.
Start climbing and enter inside the body of Gaia. It sure it looks creepy inside a Titan but your goal is to reach her Heart. Now go!God of War III Walkthrough: Prologue- Poseidon,