***** There are some player report that they got headache when they play this game. Don't worry, it is like muscle pain after exercise. Suggested that the primary players do not play more than half an hour continuously. Thank you. *****
Train brain to memorize things at a glance. It is fun and useful in our life.
In human society, education always trains our left brain which adepts logical, analytical and objective. Training our right brain which adepts music, art, creativity, image and intuition is neglected.