While last week was a pretty big deal for Sony and Microsoft, Nintendo had some pretty major releases too, with Super Mario 3D World and The Legend of Zelda: A Link Between Worlds. To celebrate, there are some limited-time bonuses available at Nintendo Zone wifi spots, themed after the new games. You can get a special Mystery Box in Super Mario 3D Land, a cat tower for your house in Animal Crossing New Leaf and a Zelda Crashmo puzzle.
In addition Yoshiaki Koizumi, the director of Mario 3D World, might just show up in your Mii plaza. Check the link for the applicable time limits on each one, as they won't be around forever. It might be a good idea to visit a Nintendo Zone hot spot in the next few days.