Hehe, I just made a pretty big discovery. It's the first time Nintendo has done anything like this and it's pretty cool. It makes an interaction between Swapnote and Super Mario 3D Land to give you a new gift! Check out the news story!
*facepalm* This isn't extra content. Anybody who streetpasses/spotpasses with people get these rewards. And what the it says with "1st" and "this Mii" is the exact same text as every other free box you get with every other street/spotpass. It isn't unique to Nikki. My guess is that this person just never has their wireless on, rarely streetpasses or spotpasses, and happened to have their first one be as a result of a spotpass. That, or they don't pay any attention when they collect boxes from street/spotpasses. Don't waste your time reading this. It isn't anything new at all.
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