Patent ID: 8579706

Claim:
A computer-readable storage medium storing a game program for causing a computer, which is connected to a display for displaying a game image, a coordinate input device for inputting coordinates corresponding to a point on a screen of the display and a memory for temporarily storing data, to function as: storing programmed logic circuitry for, from a start of coordinates inputting until an end of coordinates inputting by the coordinate input device, sequentially storing into the memory, as a piece of valid coordinate data, a piece of coordinate data indicating the coordinates inputted by the coordinate input device; invalidating programmed logic circuitry for sequentially invalidating each piece of valid coordinate data in a valid coordinate data array stored in the memory, based on a time period passed from when each piece of valid coordinate data has been stored into the memory; a game processor for performing game processing by using the valid coordinate data array stored in the memory; track image generating programmed logic circuitry for generating an image of an operation track which comprises points respectively corresponding to a plurality of pieces of valid coordinate data stored in the memory, the image having a display mode which partially changes according to a time until each of the plurality of pieces of valid coordinate data stored in the memory is invalidated by the invalidating programmed logic circuitry; and display control programmed logic circuitry for causing the display to display, according to a result of the game processing by the game processor, a game image including the image of the operation track generated by the track image generating programmed logic circuitry.