In the City of Olympia, you'll find Helios. This is one hard battle Kratos must endure, and your want to get the Head of Helios. At first, Helios will be protected by a bunch of men with shields who you can't immediately attack. Once you win, you'll need to lay your hand over Helios to block out the sunlight. Watch the walkthrough for Helios's Head in God of War III on PS3.
Mahalo's God of War 3 Walkthroughs show every step to playing the video game on the PlayStation 3. The gameplay is very similar to previous installments of God of War, but there's tons of new missions and five primary weapons.
Description from Sony:
"Developed exclusively for the PlayStation 3 (PS3) system, God of War III is the final installment of the multi-million unit-selling trilogy. Developed by Sony Computer Entertainment's Santa Monica Studios, God of War III will bring epic battles to life with stunning graphics and an elaborate plot that puts Kratos at the center of carnage and destruction as he seeks revenge against the Gods who have betrayed him.
Set in the realm of brutal Greek mythology, God of War III is a single-player game that allows players to take on the climatic role of the ex-Spartan warrior, Kratos, as he scales through the intimidating heights of Mt. Olympus and the dark depths of Hell to seek revenge on those who have betrayed him. Armed with double-chained blades, and an array of new weapons and magic for this iteration of the trilogy, Kratos must take on mythology's darkest creatures while solving intricate puzzles throughout his merciless quest to destroy Olympus."