Star Fox 64 3DS does not have Wi-Fi, reasons inside.

[Mario Super Sluggers]

http://www.ihavefury.com/2011/09/absence-of-online-multiplayer-in-star-fox-64-explained.html

I don't care, because I don't want a 3DS.

 

[Dr. Javelin]

Not surprising. Like the article said, it would have had terrible lag.

 

[Brawl Mario]

I'm not surprised either. It doesn't sound like a game viable for Wi-Fi.