Wii System Maintenance mode
Power on the Wii, then hold Minus + Plus at the safety screen. Note: The message board is disabled in this mode.
192 piece puzzle
At the puzzle piece selection screen, hold 1 to reveal a hidden 192 piece puzzle option.
Determining Wii-mote battery life
Press Home to show your Wii-mote’s battery life. When the battery life is at one bar, the light on your Wii-mote will grow dim. Another way to check your battery life is to turn on your Wii-mote. The number of lights flashing represents your battery life.
The image featured at the top of this post is ©Square Enix.