For example, with respect to respective players, five kinds of bio-information, e.g., pulse, No. of breaths, body temperature, sweating and wink are respectively measured to calculate, as data of coordinate
1, linear sum of pulse, body temperature and sweating among the measured respective data, and to calculate, as data of coordinate
2, linear sum of the No. of breaths and wink. For example, since pulse, body temperature and sweating are increased when excited, the coordinate
1 can be regarded as coordinate representing “degree of enthusiasm”. Moreover, since the number of breaths and wink are not so changed if player is cool, the coordinate
2 can be regarded as coordinate representing “degree of coolness”.