I went over to my friends' house the other day to play some Smash on the Wii U. Neither of us have the Gamecube controller adapter and we don't like using Wii remotes, so I decided to bring my Wii U gamepad to use as a controller. However, it wouldn't connect. We looked it up, and we found out that each Wii U can only have one gamepad connected at a time. Seeing as the gamepad is the primary controller for the Wii U, wouldn't it make sense to allow multiple gamepads to connect? Hopefully Nintendo changes this issue in the near future.