Can you play with players worldwide in Zelda triforce heroes?
Solution 1:
No, it looks like you can only play with people from the same region as you, as the multiplayer is region locked for some security and latency reasons. Maybe the website had some translation error, or they changed it near release.
Source: http://mynintendonews.com/2015/10/03/online-play-for-the-legend-of-zelda-tri-force-heroes-will-be-region-locked/