| CPC A63F 13/86 (2014.09) [A63F 13/792 (2014.09); A63F 13/87 (2014.09)] | 11 Claims |

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1. A watching system by which a game video is distributed to display devices of reproduction terminals for a plurality of watching users and which has a computer, the watching system comprising:
the computer accepting viewer operations by the plurality of watching users, wherein each of the viewer operations is inputted by an operation device of each reproduction terminal;
the computer causing each display device to display an effect image, a speaker of each reproduction terminal to output effect audio, or a vibration device of each reproduction terminal to vibrate;
the computer evaluating a mutual relationship of input of the viewer operation by each of the plurality of watching users; and
the computer changing a display mode of the effect image displayed on the display device, an output mode of the effect audio outputted from the speaker, or a vibration mode by the vibration when an evaluation result of the mutual relationship satisfies a predetermined condition.
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