Nintendo has officially confirmed the gold Mario amiibo, which leaked out earlier this month. As was previously thought, the figure will be exclusive to Walmart. Nintendo says that the amiibo will be sold at 3,000 Walmart stores in the U.S. for $12.96. It will be available on March 20. You can find today’s full announcement below. REDMOND, Wash.–(BUSINESS WIRE)–Mario has...