Keep Still2 app for iPhone and iPad

When you tap start button, a game starts.
A game starts after 5-second countdown.
When you incline a device, the green target moves.
A number from 1 to 9 is hidden.
When you evaluate a green target in the place where 1 is hidden, a number and a yellow circle emerge at the same time.
When you keep a green target inside of a yellow circle for three seconds, you can advance to the next number.
Please repeat itself to 9 in this way.
Please operate it carefully calmly.
When you delete a circle nine times, an elapsed time is recorded.
Please compete for the shortness of the elapsed time
It supports GameCenter which can compete with a world player.
Please challenge the limit.