Instructions
Play the game as normal until the Z-Phone begins to ring. An icon will begin to flash on the screen.
Press and hold the "A" button on the Wii remote.
Lift up the Wii remote and tilt it at about a 70-degree angle as you press the "A" button. It may help to imagine that you are picking up a real phone. When the angle and button are hit at the same time, the phone will be answered.