The Nintendo World Championships 2015 which we shared with you after the Nintendo Financial Briefing now has more details. Best Buy will be hosting the qualifying events at eight locations across the U.S. and then the winner from each location will go on to the Nintendo World Championships held on June 14 in Los Angeles. You have to be atleat 13 years old to enter and the registration starts at the participating Best Buy locations at 9am. The entrants will…