You might find a website that looks convincing, with screenshots from Ragnarok and a large "Download" button. However, after clicking it, you are taken to a page that asks you to complete a "human verification" process. This often involves tasks like downloading a specific app, submitting a form with personal data, or subscribing to a paid service. In reality, these are nothing more than methods for scammers to generate revenue, and they never lead to a legitimate game file.
Kratos wears his Norse armor, features his older bearded face, and weapons are re-skinned to look like the Leviathan Axe and Guardian Shield.
God of War Ragnarok PSP File Download: The Ultimate Emulation Guide