This is a kind of memory game. You click on a square to flip it, then you click on another one, flip it too, and if they match they disappear. Unlike traditional memory games, in Mon Buster a line of squares is added once in a while elevating the squares you had before. If one of the squares reaches the top of the screen, you lose. Besides, if you eliminate a pair of squeres, those that lay on them fall down.
Played 99,739 times