Does the GameCube Controller Have a Turbo Feature?
GameCube Controller Turbo Functionality
No. The official Nintendo GameCube controller does not have a built-in turbo (auto-fire) feature.
Options for Turbo Functionality
Third-Party Controllers: Brands like Hori, Mad Catz, and Nyko released GameCube controllers with turbo switches.
External Adapters: Devices like the Turbo Converter plug between the controller and console to add auto-fire.
Software (Emulation): When using a GameCube controller via adapter on PC (Dolphin emulator), you can configure turbo in the emulator's controller settings.
For original hardware, a third-party turbo controller is the simplest solution.