Image processor and game device with image processor

An image processor comprises an image processing means for carrying out an image processing for displaying a display member based on an operating signal, and an image processed surplus power display control means for displaying a surplus power in image processing applied to the display member as an image. The image processed surplus power display control means includes a whole surplus power display control means for displaying a whole surplus power, a display control means of a remaining surplus power relative to a whole surplus power and a whole surplus power changing means for gradually changing the whole surplus power as an image processing progresses.