Program product storing image display program, image display program, image display method, and game system

摘要

A computer readable storage medium for storing an image display program giving rise to a soft focus effect to a specific portion of a game screen is provided. The program maker a computer generate dummy image data comprising only image portions of at least a predetermined lightness based on original image data comprising a display image; combine the original image data and the dummy image data by a positional relationship where an image common to the original image data and the dummy image data is shifted in position; and display an image based on the combined image data.