It is a brain training game in which you only have to press the numbers in order.
It helps in sports and daily life by training peripheral vision and instantaneous vision.

There are three types of tests in total.
1 to 9 (3 x 3)
1 to 16 (4 x 4)
1 to 25 (5 x 5)

The three types of results will test your number-tap ability.

There is a ranking for each test.
The ranking is reset in two weeks, so you can aim to be the best in the world as many times as you want.