var Shape = Container.expand(function () {
	var self = Container.call(this);
	var shapeGraphics = self.createAsset('shape', 'Shape Graphics', .5, .5);
	self.matched = false;
	self.match = function () {
		self.matched = true;
	};
});
var Player = Container.expand(function () {
	var self = Container.call(this);
	var playerGraphics = self.createAsset('player', 'Player Graphics', .5, .5);
	self.score = 0;
	self.incrementScore = function () {
		self.score += 1;
	};
});
var Game = Container.expand(function () {
	var self = Container.call(this);
	var shapes = [];
	var player = self.addChild(new Player());
	player.x = 2048 / 2;
	player.y = 2732 / 2;
	var scoreTxt = new Text2('0', {
		size: 150,
		fill: "#ffffff"
	});
	scoreTxt.setText(player.score);
	scoreTxt.anchor.set(.5, 0);
	LK.gui.topCenter.addChild(scoreTxt);
	LK.on('tick', function () {
		for (var a = shapes.length - 1; a >= 0; a--) {
			if (shapes[a] && shapes[a].matched) {
				shapes[a].destroy();
				shapes.splice(a, 1);
				player.incrementScore();
				scoreTxt.setText(player.score);
			}
		}
		if (LK.ticks % 60 == 0) {
			var newShape = new Shape();
			newShape.x = Math.random() * 2048;
			newShape.y = Math.random() * 2732;
			shapes.push(newShape);
			self.addChild(newShape);
		}
	});
	stage.on('down', function (obj) {
		var event = obj.event;
		var pos = event.getLocalPosition(self);
		for (var a = shapes.length - 1; a >= 0; a--) {
			if (shapes[a] && shapes[a].containsPoint({
				x: pos.x,
				y: pos.y
			})) {
				shapes[a].match();
			}
		}
	});
});

===================================================================
--- original.js
+++ change.js
@@ -47,9 +47,12 @@
 	stage.on('down', function (obj) {
 		var event = obj.event;
 		var pos = event.getLocalPosition(self);
 		for (var a = shapes.length - 1; a >= 0; a--) {
-			if (shapes[a] && shapes[a].containsPoint(pos)) {
+			if (shapes[a] && shapes[a].containsPoint({
+				x: pos.x,
+				y: pos.y
+			})) {
 				shapes[a].match();
 			}
 		}
 	});