Reduce ,incoming ,numbers ,to ,exactly ,zero ,with ,missles ,of ,twos ,and ,threes ,from ,your ,number ,cannon ,in ,this ,intelligent ,arcade ,game! ,The ,frequency ,and ,value ,of ,the ,numbers ,will ,increase ,with ,levels , ,and ,any ,missed ,numbers ,or ,miscalculations ,will ,pile ,up ,below ,your ,cannon. ,Rack ,up ,the ,highest ,score ,possible ,before ,your ,number ,pile ,pushes ,your ,cannon ,out ,of ,bounds.. . . .