Toys and gaming

Scrolling
An accelerometer acts as a motion or tilt sensor.A user’s motion can be detected and used to orient the display, as when using a map, and to conveniently search through data such as WebPages or lengthy text.  It also eliminates small or difficult buttons that are often hard to use.
Gaming
Gaming applications use an accelerometer as a motion sensor that enhances the user interface of any game. Sensing the movement of the user allows for that movement to be translated into motion for a game. This provides a simpler and more interactive user interface.