Have Kirby 64, so I will try it tomorrow.
edit 29-7: Tried it today, but I couldn't get it to work :/ When I turn on a classic controller (pro) or Wii u Pro controller it would show immediately as usable controller. How many times I have turned of and on the wavebirds that I have, none of them would show up So if anyone succeeds, I would like to know how
So this thread is bunk. Nothing is proven as claimed.