Nintendo of America has announced that a free demo for Tri Force Heroes will be made available for free on the 3DS eShop, starting today! The demo will be available starting at 9am PST and will allow you to play via local play anytime, since it is a demo the single player and Download Play aspects of the game will not be available. But you will be able to enjoy online multiplayer and experience three different dungeons and outfits! The…