The key to Nintendo's new game interface lies inside the controller. Instead of using a joystick to control the game, the primary control is the controller itself. The controller contains solid-state accelerometers and gyroscopes that let it sense:
  • Tilting and rotation up and down
  • Tilting and rotation left and right
  • Rotation along the main axis (as with a screwdriver)
  • Acceleration up and down
  • Acceleration left and right
  • Acceleration toward the screen and away