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.