The Power Of Concentration - Never Give Up

This game is made in japan. It is a game that measures the concentration. Do you can keep forever the power of concentration? ※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※ ※※ I's Free, so try. ※※ ※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※