As the scope of the sun's rays expanded, more mechanical sounds appeared. These include the sound of the engine of a roadside car and some working machine on the street, and the voice from people’s conversation that appears more clearly. The types of sounds gradually increase, and the frequency gradually becomes higher than last condition. Visually, with the expansion of the sunlight range, the environment also began to change from cool to warm colors, and the graphics began to change from a circle to a more neutral rectangle.