Drop Stones FVN

This game is a game that displays three same color stones or more to diagonal length and breadth by operating the dropping stone and erases it.
The dropping stone is operated in the game panel.
(1)It moves to the right: It rubs right.
(2)It moves to the left: It rubs left.
(3)It drops: It rubs below.
(4)Stones are exchanged: It rubs.
The concealed function appears with the number and the chain by which the stone disappeared.
(1)An almighty stone appears.
(2)The speed to which the stone drops is slowed down.
(3)"Clear Same Color" The button can be used and this that becomes it can erase all the same color stones.
(4)The stone to be able to get the bonus score appears.