If you have a PlayStation 3 and a sense of history, tracking down the is worth the effort.
: Notably, the demo version featured mechanics that were later refined or changed for the retail release. For example, the "hit stun" effect (where weapons slow slightly upon impact) was present in the demo but removed in the final game to keep combat fluid. Performance Review: God Of War 3 (PS3) - IQGamer
: Using Helios’s head to light dark areas drained the item meter in the demo, whereas in the final version, the meter only drained when using it for active attacks.
Technically, the demo ran at a variable frame rate—averaging around but reaching up to 60 FPS in less demanding scenes. While impressive, Digital Foundry later noted that the final game saw massive improvements in lighting, motion blur, and texture detail compared to this early E3 code. How to Play It Today
Players could test the Blades of Athena , the Nemean Cestus , and the Bow of Apollo .