===================================================================
--- original.js
+++ change.js
@@ -1,19 +1,45 @@
-var Shape = Container.expand(function () {
+var Circle = Container.expand(function () {
 	var self = Container.call(this);
-	var shapeGraphics = self.createAsset('shape', 'Shape Graphics', .5, .5);
+	var circleGraphics = self.createAsset('circle', 'Circle Graphics', .5, .5);
 	self.matched = false;
 	self.match = function () {
 		self.matched = true;
 	};
 });
+var Square = Container.expand(function () {
+	var self = Container.call(this);
+	var squareGraphics = self.createAsset('square', 'Square Graphics', .5, .5);
+	self.matched = false;
+	self.match = function () {
+		self.matched = true;
+	};
+});
+var Triangle = Container.expand(function () {
+	var self = Container.call(this);
+	var triangleGraphics = self.createAsset('triangle', 'Triangle 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.shape = 'circle';
 	self.incrementScore = function () {
 		self.score += 1;
 	};
+	self.changeShape = function () {
+		if (self.shape === 'circle') {
+			self.shape = 'square';
+		} else if (self.shape === 'square') {
+			self.shape = 'triangle';
+		} else {
+			self.shape = 'circle';
+		}
+	};
 });
 var Game = Container.expand(function () {
 	var self = Container.call(this);
 	var shapes = [];
@@ -44,15 +70,16 @@
 			self.addChild(newShape);
 		}
 	});
 	stage.on('down', function (obj) {
+		player.changeShape();
 		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] instanceof window[player.shape]) {
 				shapes[a].match();
 			}
 		}
 	});