Since Amazon / UK in general failed to deliver my gamecube adapter on time, we have been playing it on Gamepad and Pro Controller (as we play most Wii U games). It was very strange at first (especially as I used Gamecube controller on someone else's game who got the adapter on time), mainly with the C-stick equivalent being above the A and B buttons rather than below, and the Z and R equivalents being effectively the other way around. Also, although I'm not sure the same applies as much to the Pro controller, on the Gamepad you really notice that it was stil designed with the Gamecube controller in mind since the buttons to exit match (L + R + A + (+)/Start) really don't seem meant to be pressed together on the gamepad.
I will revert to Gamecube Controllers when I can since that's what I played Melee and Brawl on, but the Pro controller and even Gamepad seem pretty good for it, just take some extra getting used to.







