Patent ID: 8791962

Claim:
An information processing device comprising: a display section, wherein: the display section comprises a display screen configured to display a first 3D object and a second 3D object in a virtual three-dimensional space with the third dimension being a depth direction of the display screen, the first 3D object has a first collision region surrounding the first 3D object, the first 3D object has a first reaction region surrounding both the first 3D object and the first collision region, the first reaction region is larger than the first collision region in at least the depth direction, the second 3D object has a second collision region surrounding the second 3D object, the second 3D object has a second reaction region surrounding both the second 3D object and the second collision region, and the second reaction region is larger than the second collision region in at least the depth direction; and a controller, wherein: the controller is configured to move the first 3D object on the display screen in accordance with a received user input instruction, the controller is configured to execute a reaction effect when the first reaction region of the first 3D object overlaps the second reaction region of the second 3D object, the controller is configured to execute a collision effect when the first collision region of the first 3D object overlaps the second collision region of the second 3D object, and the reaction effect is different from the collision effect.