Instructions
Approach an enemy or let a group of enemies surround you.
Hold down the "B" button for a few seconds to charge the spin attack on the Gamecube. Release the button to perform the attack. Alternatively, rotate the control stick to charge the attack and then tap "B" to perform it.
Shake the Nunchuck left and right to do a spin attack on the Wii. You can't charge the spin attack on the Wii version of the game.