The RE4 community has made a list of all the differences between the 7 versions and 3 regions of the game. This should help you if you are just learning to run the game, or are learning a different version to play! ^_^ https://docs.google.com/document/d/1aXN-Kxt0jbt9HQk_YrUNEn4WalTyiw18u2XBeuhqMts/edit?usp=sharing