===================================================================
--- original.js
+++ change.js
@@ -1,9 +1,9 @@
 var SpinningSquare = Container.expand(function () {
 	var self = Container.call(this);
 	var squareGraphics = self.createAsset('square', 'Spinning Square', Math.random(), Math.random());
 	squareGraphics.tint = Math.random() * 0xFFFFFF;
-	squareGraphics.blendMode = 3;
+	squareGraphics.blendMode = 1;
 	self.rotationSpeed = 0.01;
 	self.rotate = function () {
 		self.rotation += self.rotationSpeed;
 	};
@@ -16,10 +16,33 @@
 		spinningSquare.x = Math.random() * 2048;
 		spinningSquare.y = Math.random() * 2732;
 		spinningSquares.push(spinningSquare);
 	}
+	stage.on('down', function (obj) {
+		var event = obj.event;
+		var pos = event.getLocalPosition(self);
+		for (var i = 0; i < spinningSquares.length; i++) {
+			var dx = spinningSquares[i].x - pos.x;
+			var dy = spinningSquares[i].y - pos.y;
+			var distance = Math.sqrt(dx * dx + dy * dy);
+			if (distance < 200) {
+				spinningSquares[i].bounceBack = true;
+				spinningSquares[i].bounceBackX = dx;
+				spinningSquares[i].bounceBackY = dy;
+			}
+		}
+	});
 	LK.on('tick', function () {
 		for (var i = 0; i < spinningSquares.length; i++) {
 			spinningSquares[i].rotate();
+			if (spinningSquares[i].bounceBack) {
+				spinningSquares[i].x += spinningSquares[i].bounceBackX * 0.1;
+				spinningSquares[i].y += spinningSquares[i].bounceBackY * 0.1;
+				spinningSquares[i].bounceBackX *= 0.9;
+				spinningSquares[i].bounceBackY *= 0.9;
+				if (Math.abs(spinningSquares[i].bounceBackX) < 1 && Math.abs(spinningSquares[i].bounceBackY) < 1) {
+					spinningSquares[i].bounceBack = false;
+				}
+			}
 		}
 	});
 });