This game is a classic 'Mine Sweeper'.
The operation is easy and without stress.
It is easy that time breaks 10 seconds in Level 1.
How to play
-Single tap, open the place.
-Double tap, set a flag.
-Tap a number, open around that if number is equal number of flags.
-Open all places that are not Mine, game is cleared.
-Single and Double tap.
-Auto open.(It is not necessary to tap a number purposely.)
-Double tap interval is possible to set it.(short, normal, long)