There are 81(9x9) [GREEN] tiles, 10 of them are [MINE]tiles hiding inside.
Open all the [GREEN]tiles except [MINE] tiles to clear the game.
Game over if [MINE] tile is tapped.
[NUMBER] tiles shows the number of [MINE]tiles around.
You can get a higher score in Bouns Time!
Difficulty of the game of every stage changes according to the allocation of [MINE]tiles.