Things You'll Need
Instructions
Open the top hatch of your Wii and find the controller ports and memory card slots. Plug your GameCube controllers into these ports and unhook your Wii-motes. The Wii-mote will automatically be set up as the default controller if it is on, making it impossible to use the GameCube controller.
Understand the way the Xbox and GameCube controller action buttons match up. The "A" button is equivalent to the "B" button on the Wii. The "B" button is equivalent to the "A" button on the Wii. The "X" button is equivalent to the "Y" button on the Wii and the "Y" button is equivalent to the "X."
Print out a list of fatalities from the "IGN" website. Find the character you are using and learn the buttons you must press to activate the fatality. Write these down on a piece of paper.
Translate the button presses from the list, which is for the Xbox controller, into the button presses for the GameCube controller. Write down these changes on a piece of paper so you can reference these instead.
Play the game using the character for whom you learned the fatality button presses. Defeat your opponent twice to win a match. When the match is over, press the buttons needed to activate your fatality. Watch the fatality animation.