Patent ID: 8992317
Filing Date: 2015-03-31
Classification: A63F

Abstract:
1. A game system including a game device, and a controller device capable of communicating with the game device, the game device being configured at least to: the controller device comprising an inertia sensor and being configured at least to: the game device is further configured to calculate an attitude of the controller device based on the data output from the inertia sensor; the game device is further configured to generate a third game image or a fourth game image, as the second game image, and switch between the third game image and the fourth game image in accordance with whether the attitude of the controller device is in a predetermined first state or in a second state different from the first state; the game device is further configured to determine that the attitude of the controller device is in the first state when an attitude of a screen of the display device is in a vertical state, and in the second state when the attitude of the screen of the display device is in a horizontal state; and an axis extending perpendicular to the screen of the display device points in a first direction when the attitude of the screen of the display device is in the vertical state and the axis extending perpendicular to the screen of the display device points in a second direction when the attitude of the screen of the display device is in the horizontal state, the first and second directions being perpendicular to each other.