Classic Controller what? You can use a PlayStation 2 controller to play Tatsunoko vs. Capcom: Ultimate All-Stars. Datel Japan created a PS2 controller to Wii/Wii U adapter. All you need to do is plug one end to a Wii remote and the other to a PS2 pad.
The adapter also has a Turbo button, possibly useful for Virtual Console shooters.
The PS2 to Wii U/Wii adapter comes out on December 8 for 1,980 yen.