4321--- A classic Domino digital games to eliminate!
4321 of the gameplay is from the number 1 has been clicking to into digital until 4 after the explosion elimination, and then the explosion debris around to launch, if it hits the adjacent number, this number is also a corresponding increase of 1 numbers in the same logic variable is the number 4 to continue after the elimination of the surrounding figures as Dominos chain reaction way, quite interesting!