game stop is the art book
are there any other bonuses from other stores like Walmart or best buy?
nothing over the internet
and is the art book thing worth it?

most places are the art book. its really nothing too impressive, but for free, yea its worth it

looked on google and they say theres like a new end mission or something? is that with all games or just pre-order?

should be with all games, the only preorder specific(or early purchase specific) content advertised is the yuna costume for lightning in lightning returns