var MAX_ROTATION_SPEED = 0.02;
var maxV = 4;
var flowersFalling = false;
var flowerSpeed = 1;
var beeSpeed = 5;
var playerScore = 0;
var Bee = Container.expand(function () {
	var self = Container.call(this);
	self.canJump = true;
	self.beeJumping = false;
	self.onFlower = false;
	self.currentFlower = null;
	var beeGraphics = self.createAsset('bee', 'Bee character', .5, .5);
	beeGraphics.scale.set(2);
	self.collectNectar = function () {};
	self.update = function () {
		if (self.beeJumping) {
			self.x += beeSpeed * Math.cos(self.rotation - Math.PI / 2);
			self.y += beeSpeed * Math.sin(self.rotation - Math.PI / 2);
		}
		if (self.onFlower && self.currentFlower) {
			var currentFlower = self.currentFlower;
			var orbitRadius = currentFlower.height / 1.5;
			self.rotation += self.rotationStep;
			self.rotation = currentFlower.rotation;
			var ang = self.rotation * (180 / Math.PI);
			ang = self.rotation;
			self.x += maxV * Math.sin(ang);
			self.y += maxV * -Math.cos(ang);
			self.x = currentFlower.x + orbitRadius * Math.sin(ang);
			self.y = currentFlower.y + orbitRadius * -Math.cos(ang);
		}
		if (self.y < 0 && !self.onFlower) {
			LK.showGameOver();
		}
		if (self.x < 0 || self.x > 2048 || self.y > 2732) {
			LK.showGameOver();
		}
	};
	Object.defineProperty(self, 'height', {
		get: function () {
			return beeGraphics.height;
		}
	});
});
var Flower = Container.expand(function () {
	var self = Container.call(this);
	var flowerType = Math.floor(Math.random() * 8) + 1;
	var flowerGraphics = self.createAsset('flower' + flowerType, 'Flower Type ' + flowerType, .5, .5);
	var randomScale = Math.random() * 2 + 2;
	flowerGraphics.scale.set(randomScale);
	self.addChild(flowerGraphics);
	for (var i = 1; i <= 8; i++) {
		LK.getAsset('flower' + i, 'Flower Type ' + i, .5, .5);
	}
	self.canCollide = true;
	self.rotationStep = (Math.random() < 0.5 ? -1 : 1) * MAX_ROTATION_SPEED;
	self.verticalMovement = 0;
	self.produceNectar = function () {};
	self.update = function () {
		self.rotation += self.rotationStep;
		if (flowersFalling == true) {
			self.y += flowerSpeed;
		}
	};
});
var Sparkle = Container.expand(function () {
	var self = Container.call(this);
	var sparkleGraphics = self.createAsset('sparkle', 'Sparkle', .5, .5);
	sparkleGraphics.scale.set(0.5);
	self.lifespan = 500;
	self.vx = 2 - Math.random() * 4;
	self.vy = 2 - Math.random() * 4;
	self.update = function (delta) {
		self.lifespan -= delta;
		self.x = delta * self.vx / 2;
		self.y = delta * self.vy / 2;
		if (self.lifespan <= 0) {
			self.destroy();
		}
	};
});
var Background = Container.expand(function () {
	var self = Container.call(this);
	var backgroundGraphics = self.createAsset('background', 'Background', 0, 0);
	backgroundGraphics.scale.set(1.4);
	backgroundGraphics.alpha = 0.6;
	self.addChild(backgroundGraphics);
});
var Game = Container.expand(function () {
	var self = Container.call(this);
	var background = self.addChild(new Background());
	var bee = self.addChild(new Bee());
	var flowers = [self.addChild(new Flower()), self.addChild(new Flower()), self.addChild(new Flower()), self.addChild(new Flower())];
	flowers[0].y = -300;
	flowers[1].y = 400;
	flowers[2].y = 1100;
	flowers[3].y = 1800;
	flowers[0].x = 1024;
	flowers[1].x = 904;
	flowers[2].x = 1200;
	flowers[3].x = 1024;
	flowers.forEach(function (flower, index) {
		flower.y += flower.height / 2;
	});
	var nectars = [];
	var scoreTxt = new Text2('0', {
		size: 150,
		fill: "#ffff88",
		stroke: "#882222",
		strokeThickness: 12
	});
	scoreTxt.anchor.set(0.5, 0);
	LK.gui.topCenter.addChild(scoreTxt);
	var isGameOver = false;
	var sparkleTimer = 0;
	bee.x = 1024;
	bee.y = 2732 - bee.height - 100;
	LK.on('tick', function () {
		bee.update();
		flowers.forEach(function (flower) {
			if (flower.canCollide == true) {
				if (bee.intersects(flower)) {
					if (!bee.onFlower) {
						bee.x = flower.x;
						bee.y = flower.y - flower.height / 1.5;
						flowersFalling = true;
						flowerSpeed += 0.3;
						MAX_ROTATION_SPEED += 0.005;
						beeSpeed *= 1.05;
						playerScore += 1000;
						scoreTxt.setText(playerScore.toString());
					}
					bee.rotationStep = flower.rotationStep;
					bee.currentFlower = flower;
					bee.beeJumping = false;
					bee.onFlower = true;
					flower.canCollide = false;
					bee.canJump = true;
				}
			}
		});
		sparkleTimer += 16.6667;
		if (sparkleTimer >= 50) {
			var sparkle = new Sparkle();
			sparkle.x = bee.x;
			sparkle.y = bee.y;
			self.addChild(sparkle);
			sparkleTimer = 0;
		}
		for (var i = self.children.length - 1; i >= 0; i--) {
			var child = self.children[i];
			if (child instanceof Sparkle) {
				child.update(16.6667);
			}
		}
		if (isGameOver) {
			LK.effects.flashScreen(0xff0000, 1000);
			LK.showGameOver();
		}
		for (var i = 0; i < flowers.length; i++) {
			flowers[i].produceNectar();
			flowers[i].update();
			if (flowers[i].y > 2732) {
				flowers[i].destroy();
				flowers.splice(i, 1);
				var newFlower = new Flower();
				newFlower.x = 500 + Math.random() * (1748 - 500);
				newFlower.y = -newFlower.height - 200;
				flowers.push(newFlower);
				self.addChild(newFlower);
			}
		}
		for (var j = 0; j < nectars.length; j++) {
			if (bee.intersects(nectars[j])) {
				bee.collectNectar();
				nectars[j].destroy();
				nectars.splice(j, 1);
			}
		}
	});
	stage.on('down', function (obj) {
		if (bee.canJump) {
			bee.beeJumping = true;
			bee.canJump = false;
			bee.onFlower = false;
			bee.currentFlower = null;
		}
	});
});

===================================================================
--- original.js
+++ change.js
@@ -68,10 +68,14 @@
 	var self = Container.call(this);
 	var sparkleGraphics = self.createAsset('sparkle', 'Sparkle', .5, .5);
 	sparkleGraphics.scale.set(0.5);
 	self.lifespan = 500;
+	self.vx = 2 - Math.random() * 4;
+	self.vy = 2 - Math.random() * 4;
 	self.update = function (delta) {
 		self.lifespan -= delta;
+		self.x = delta * self.vx / 2;
+		self.y = delta * self.vy / 2;
 		if (self.lifespan <= 0) {
 			self.destroy();
 		}
 	};