A key reception processing unit 203 receives a key-designated area designated by means of a tenkey 211, a timing detector 205 detects a timing at which the key-designated area was received, a meet section detector 204 detects a meet section where the center position of a ball object 402 displayed to move on a display screen of a monitor 22 passes, and a game progress processing unit 206 proceeds a game in accordance with a batting result obtained by combining a batting result corresponded beforehand to the detected timing and a batting result corresponded beforehand to the detected meet section.