Can I edit official games on Unity?

OK, So I want to edit a official game like for example, if i put in an xbox 360 disc in my computer like Child of Eden or some other game could i put the files in unity and re edit environments and charcters? if so how? (btw i have the free version of Unity).

Unity is a tool for authoring new games. You can’t even edit games that were made in Unity with the editor once they’re built, let alone games that use completely different engines.

Unity is not a decompiler or resource mining tool.

Just in case people are putting too fine a point on it, the answer to the question is NO.

If you want to steal someone else’s work, you have to do it the hard way, start from scratch.