How do you kill Prometheus in god of war 2?

In "God of War II," you do not actually kill Prometheus; instead, you find him chained and suffering. You can interact with him to free him from his bondage, which ultimately leads to his demise. When freed, he is consumed by Zeus' wrath, providing Kratos with a new power in the form of the "Rage of the Titans." This moment highlights the tragic nature of Prometheus rather than a direct confrontation.