A control method for making a computer of a server apparatus, the server apparatus being connected with, via a network, at least one display-use terminal each being programmed to display a predetermined screen, at least one game machine each providing a plurality of game opportunities each being played through a game screen, and at least one photography-use terminal each being programmed to photograph a terminal dynamic image including a playing dynamic image where a user during game-play in each game opportunity has been photographed, and comprising a dynamic image storage device which stores a plurality of dynamic images different from each other in association with dynamic image identification information for identifying each of the plurality of the dynamic images, wherein a plurality of gaming dynamic images each showing change of the game screen which changes in time series with respect to each of the plurality of game opportunities are provided from the at least one game machine to the dynamic image storage device so that the plurality of gaming dynamic images are stored as the plurality of dynamic images,
- the method for making the computer execute the following steps:
- a dynamic image acquiring step of acquiring from the photography-use terminal, the terminal dynamic image, and specific information for specifying the dynamic image identification information which is associated with the terminal dynamic image;
- a dynamic image determining step of determining a dynamic image corresponding to the dynamic image identification information specified by the specific information, as a target dynamic image within the plurality of dynamic images, based on an acquisition result of the dynamic image acquiring step;
- a composite dynamic image generating step of generating a composite dynamic image where the terminal dynamic image and the target dynamic image are synthesized, based on a determination result of the dynamic image determining step;
- and
- a dynamic image providing step of providing the terminal dynamic image and the target dynamic image to the display-use terminal, based on a determination result of the dynamic image determining step, and providing the composite dynamic image so that the composite dynamic image is displayed in the predetermined screen, based on a generation result of the composite dynamic image generating step.