Instructions
Power on the Wii console and slide the "Wii Sports" disc into your Wii. Start the game.
Click "Tennis" on the main menu. Choose your characters. If you're playing with two human-controlled players, you must connect two Wii controllers.
Click "Start." Press and hold down "2" on your Wii controller when the warning screen appears after you select your characters and press "Start." The tennis court will now be a blue color.