REDMOND, Wash.--(BUSINESS WIRE)--After more than six years of delivering fun Nintendo-themed rewards to its members, Club Nintendo is preparing to shut down. Nintendo’s loyalty-rewards program rewarded members with a variety of items, such as downloadable games, Nintendo posters or character figures in exchange for Coins that members earned by registering products or completing surveys. Club Nintendo members in the United States and Canada can earn additional Coins through the end of March, and