| 摘要 |
<p>PROBLEM TO BE SOLVED: To effectively utilize the performance of a video game machine with which playing can be performed by utilizing a hidden game element. SOLUTION: This video game machine provided with the hidden game element to be exercised by a hidden command is provided with a time service function for displaying the presence of the hidden game element and the playing method on a display screen and enabling a user to play by utilizing the hidden game element only in a prescribed time band. Within the prescribed time, anyone can play the game by utilizing the hidden game element without the input of the hidden command.</p> |
