Does MLB Power Pros 2011 (Wii) Support GameCube Controllers?

No. Major League Baseball Power Pros 2011 on Wii does not support GameCube controllers.

Supported Controllers

• Wii Remote (+ Nunchuk) — Primary control scheme (motion pitching/batting).
• Classic Controller / Classic Controller Pro — Traditional button layout.
• Wii Remote Sideways — NES-style simplified controls.

The GameCube controller ports on the original Wii (RVL-001) are only active for GameCube backward compatibility mode and select Wii titles that explicitly enable them (e.g., Super Smash Bros. Brawl, Mario Kart Wii, Mario Strikers Charged). Power Pros 2011 is not one of them.