Like all products carried by WalMart, they place them in stores where there is demand.
A limtied agreement means WalMart would carry them only in a preselected number of stores and not on a nationwide level.
The article states that they will continue to sell the game in stores where there is demand which does not limit the game to any number of stores as if the demand was in every WalMart they would be carrying the game in all of them woudl they not?
According to the article they stated in stores where there was demand. That is unlimited as demand determines whether or not the game is placed on the shelf.
Like I said, people can interpre that in many ways but I read it to say that if there is demand for the game in any WalMart store it will be placed there and that would make it a national agreement for WalMart to place the game in as many stores as they see fit.