Board Thread:Smashpedia Business/@comment-12408658-20141003123219/@comment-6604133-20141004043836

I don't have it, so I'm not sure. But if it means what I think it means, then you need to unlock everything in the top row of the challenges section. Like in Brawl, where you had to do specific things to get trophies/soundtracks/stages/etc.