var Block = Container.expand(function () {
	var self = Container.call(this);
	var blockGraphics = self.createAsset('block', 'Block Graphics', .5, .5);
	self.speed = 2;
	self.falling = false;
	self.move = function (hero) {
		if (!self.falling) {
			self.y += self.speed;
			self.rotation += 0.1;
			if (hero.intersects(self)) {
				self.falling = true;
				hero.balance(self);
				self.speed = 0;
			}
		} else {
			self.y = 2732 - self.height;
			if (!hero.intersects(self)) {
				self.x += self.speed;
				if (self.speed < 5) self.speed += 0.1;
			}
		}
	};
});
var Block2 = Container.expand(function () {
	var self = Container.call(this);
	var blockGraphics = self.createAsset('block2', 'Block2 Graphics', .5, .5);
	self.speed = 1;
	self.falling = false;
	self.move = function (hero) {
		if (!self.falling) {
			self.y += self.speed;
			self.rotation += 0.05;
			if (hero.intersects(self)) {
				self.falling = true;
				hero.balance(self);
				self.speed = 0;
			}
		} else {
			self.y = 2732 - self.height;
			if (!hero.intersects(self)) {
				self.x += self.speed;
				if (self.speed < 3) self.speed += 0.05;
			}
		}
	};
});
var Pizza = Container.expand(function () {
	var self = Container.call(this);
	var pizzaGraphics = self.createAsset('pizza', 'Pizza Graphics', .5, .5);
	self.speed = 5;
	self.move = function () {};
	self.destroy = function () {};
});
var Hero = Container.expand(function () {
	var self = Container.call(this);
	var heroGraphics = self.createAsset('hero', 'Hero Graphics', .5, .5);
	heroGraphics.scale.set(4);
	self.speed = 5;
	self.move = function (dx) {
		self.x += dx * self.speed;
	};
	self.balance = function (block) {
		block.y = self.y - self.height - block.height;
		block.x = self.x;
		block.speed = 0;
		block.falling = false;
		self.parent.score += 1;
		var scoreTxt = LK.gui.topCenter.children[0];
		scoreTxt.setText(self.parent.score.toString());
	};
});
var Enemy = Container.expand(function () {
	var self = Container.call(this);
	var enemyGraphics = self.createAsset('enemy', 'Enemy Graphics', .5, .5);
	self.speed = 3;
	self.move = function () {};
	self.destroy = function () {};
});
var Game = Container.expand(function () {
	var self = Container.call(this);
	LK.stageContainer.setBackgroundColor(0x000000);
	var hero = self.addChild(new Hero());
	hero.x = 2048 / 2;
	hero.y = 2732 / 2;
	var blocks = [];
	self.score = 0;
	var scoreTxt = new Text2(self.score.toString(), {
		size: 150,
		fill: '#ffffff',
		name: 'scoreTxt'
	});
	scoreTxt.anchor.set(.5, 0);
	LK.gui.topCenter.addChild(scoreTxt);
	var spawnBlocks = function () {
		var block = new Block();
		block.x = Math.random() * 2048;
		block.y = 0;
		self.addChild(block);
		blocks.push(block);
	};
	LK.setInterval(spawnBlocks, 1000);
	stage.on('move', function (obj) {
		var event = obj.event;
		var pos = event.getLocalPosition(self);
		hero.x = pos.x;
	});
	LK.on('tick', function () {
		hero.move();
		for (var a = blocks.length - 1; a >= 0; a--) {
			blocks[a].move(hero);
			if (blocks[a].y < -50) {
				blocks[a].destroy();
				blocks.splice(a, 1);
			}
		}
	});
});

===================================================================
--- original.js
+++ change.js