I just realized something......

3DS Nintendo games that have online play: Wii U Nintendo games that have online play: And Nintendo Land, NSMBU, NSLU, Game and Wario, Pikmin 3, Donkey Kong Country: Tropical Freeze, Super Mario 3D World all have good multiplayer expiriences.
 * Mario Kart 7
 * Mario Tennis Open
 * Kid Icarus: Uprising
 * Luigi's Mansion: Dark Moon
 * Animal Crossing: New Leaf
 * Mario Kart 8 (not out until 2014)
 * Super Smash Bros for Wii U (not out until 2014)

Nintendo,