Wii Classic Controller Pro for GameCube Games? Not Compatible

No. The Wii Classic Controller Pro cannot be used for GameCube games.

Why:

• Different ports: Classic Controller Pro connects via Bluetooth to the Wii; GameCube controllers use proprietary GameCube ports.
• Different technology: Incompatible communication protocols.
• No cross‑compatibility: Neither console recognizes the other’s controller.

To play GameCube games on Wii, you need a GameCube controller + GameCube Controller Adapter (sold separately, supports up to 4 controllers).