var Spider = Container.expand(function () {
	var self = Container.call(this);
	var spiderGraphics = self.createAsset('spider', 'Spider Graphics', .5, .5);
	self.idle = true;
	self.moveDown = false;
	self.moveUp = false;
	self.state = 'idle';
	self.originalY = self.y;
	self.update = function () {
		switch (self.state) {
			case 'idle':
				self.state = 'moveDown';
				break;
			case 'moveDown':
				self.y += 5;
				if (self.y >= self.originalY + 3 * self.height) {
					self.state = 'moveUp';
				}
				break;
			case 'moveUp':
				self.y -= 5;
				if (self.y <= self.originalY) {
					self.state = 'idle';
				}
				break;
			default:
				break;
		}
	};
});
var Banana = Container.expand(function () {
	var self = Container.call(this);
	var bananaGraphics = self.createAsset('banana', 'Banana Graphics', .5, .5);
});
var TopBranch = Container.expand(function () {
	var self = Container.call(this);
	var topBranchGraphics = self.createAsset('topBranch', 'Top Branch Graphics', 0, .5);
	self.x = 0;
	self.y = 0;
	self.width = 2048;
	self.move = function () {};
	self.update = function () {};
});
var Branch = Container.expand(function () {
	var self = Container.call(this);
	var branchGraphics = self.createAsset('branch', 'Branch Graphics', .5, .5);
	self.move = function () {};
	self.update = function () {};
});
var Bird = Container.expand(function () {
	var self = Container.call(this);
	var birdGraphics = self.createAsset('bird', 'Bird Graphics', .5, .5);
	self.direction = Math.random() < 0.5 ? -1 : 1;
	self.originalX = self.direction === 1 ? 0 : 2048;
	self.move = function () {};
	self.update = function () {
		self.x += self.direction * (Math.random() * 3.5 + 3.5);
		if (self.direction === -1) {
			birdGraphics.scale.x = -1;
		} else {
			birdGraphics.scale.x = 1;
		}
		if (self.x < 0 || self.x > 2048) {
			self.x = self.originalX;
		}
		self.y = Math.max(50, Math.min(2732 - 50 - self.height, self.y + Math.random() * 10 - 5));
	};
});
var Monkey = Container.expand(function () {
	var self = Container.call(this);
	var monkeyGraphics = self.createAsset('monkey', 'Monkey Graphics', .5, .5);
	self.vx = 0;
	self.vy = 0;
	self.gravity = 0.5;
	self.jumping = false;
	self.jump = function (target, branches) {
		if (target && !self.jumping) {
			self.jumping = true;
			var dx = target.x - self.x;
			var dy = target.y - self.y;
			if (dy > 0) return;
			var distance = Math.sqrt(dx * dx + dy * dy);
			self.vx = dx / distance * 25;
			self.vy = dy / distance * 25;
			self.jumpingFrom = branches;
		}
	};
	self.update = function () {
		self.x = Math.max(0, Math.min(2048 - self.width, self.x + self.vx));
		if (self.vx > 0) {
			monkeyGraphics.scale.x = -1;
		} else if (self.vx < 0) {
			monkeyGraphics.scale.x = 1;
		}
		self.y += self.vy;
		self.vy += self.gravity;
		if (self.vy > 0) {
			self.jumpingFrom = [];
		}
		if (self.y > 2732 - self.height) {
			self.y = 2732 - self.height;
			self.vy = 0;
			self.vx = 0;
			self.jumping = false;
		}
	};
});
var Game = Container.expand(function () {
	var self = Container.call(this);
	self.setupLevel = function () {
		for (var i = 0; i < branches.length; i++) {
			branches[i].destroy();
		}
		branches = [];
		for (var i = 0; i < 15; i++) {
			var newBranch = new Branch();
			newBranch.x = Math.floor(Math.random() * 5) * 409.6 + 204.8;
			newBranch.y = (i + 1) * 2732 / 15;
			branches.push(newBranch);
			self.addChild(newBranch);
		}
		for (var i = 0; i < birds.length; i++) {
			birds[i].destroy();
		}
		birds = [];
		for (var i = 0; i < bananas.length; i++) {
			bananas[i].destroy();
		}
		bananas = [];
		for (var i = 0; i < 5; i++) {
			var newBanana = new Banana();
			newBanana.x = Math.random() * 2048;
			newBanana.y = Math.random() * 2732;
			self.addChild(newBanana);
			bananas.push(newBanana);
		}
		for (var i = 0; i < spiders.length; i++) {
			spiders[i].destroy();
		}
		spiders = [];
		var newSpider = new Spider();
		var eligibleBranches = branches.filter(function (branch) {
			return branch.y < 2732 * 2 / 3;
		});
		var randomBranch = eligibleBranches[Math.floor(Math.random() * eligibleBranches.length)];
		newSpider.x = randomBranch.x;
		newSpider.y = randomBranch.y + randomBranch.height;
		newSpider.originalY = newSpider.y;
		self.addChild(newSpider);
		spiders.push(newSpider);
		branches.sort(function (a, b) {
			return a.y - b.y;
		});
		self.topBranch = new TopBranch();
		self.topBranch.height = 300;
		self.topBranch.y = 150;
		self.addChild(self.topBranch);
		branches[0] = self.topBranch;
		for (var i = 0; i < 2 + level; i++) {
			var newBird = new Bird();
			newBird.x = Math.random() * 2048;
			if (self.topBranch) {
				newBird.y = Math.random() * (self.topBranch.y + self.topBranch.height - 300) + 300;
			}
			birds.push(newBird);
			self.addChild(newBird);
		}
	};
	var branches = [];
	var birds = [];
	var bananas = [];
	var spiders = [];
	var level = 1;
	self.setupLevel();
	monkey = self.addChild(new Monkey());
	monkey.x = 1024;
	monkey.y = 2732 - monkey.height;
	var levelTxt = new Text2('Level: ' + level, {
		size: 75,
		fill: '#ffffff'
	});
	levelTxt.anchor.set(0, 0);
	LK.gui.topLeft.addChild(levelTxt);
	var bananaCount = 0;
	var bananaTxt = new Text2('Bananas: ' + bananaCount, {
		size: 75,
		fill: '#ffffff'
	});
	bananaTxt.anchor.set(1, 0);
	LK.gui.topRight.addChild(bananaTxt);
	LK.on('tick', function () {
		monkey.update();
		for (var i = 0; i < branches.length; i++) {
			branches[i].update();
			if (branches[i].y > 2732) {
				branches[i].destroy();
				branches.splice(i, 1);
				i--;
			}
		}
		for (var i = 0; i < birds.length; i++) {
			birds[i].update();
		}
		for (var i = 0; i < branches.length; i++) {
			if (!monkey.jumpingFrom.includes(branches[i]) && monkey.intersects(branches[i])) {
				monkey.vx = 0;
				monkey.vy = 0;
				monkey.jumping = false;
			}
		}
		if (monkey.intersects(self.topBranch)) {
			monkey.x = 1024;
			monkey.y = 2732 - monkey.height;
			level++;
			levelTxt.setText('Level: ' + level);
			self.setupLevel();
		}
		for (var i = 0; i < birds.length; i++) {
			if (monkey.intersects(birds[i])) {
				LK.showGameOver();
			}
			birds[i].update();
		}
		for (var i = 0; i < bananas.length; i++) {
			if (monkey.intersects(bananas[i])) {
				bananas[i].destroy();
				bananas.splice(i, 1);
				bananaCount++;
				bananaTxt.setText('Bananas: ' + bananaCount);
			}
		}
		for (var i = 0; i < spiders.length; i++) {
			spiders[i].update();
			if (monkey.intersects(spiders[i])) {
				LK.showGameOver();
			}
		}
	});
	stage.on('down', function (obj) {
		var pos = obj.event.getLocalPosition(self);
		var intersectedBranches = [];
		for (var i = 0; i < branches.length; i++) {
			if (monkey.intersects(branches[i])) {
				intersectedBranches.push(branches[i]);
			}
		}
		monkey.jump({
			x: pos.x,
			y: pos.y
		}, intersectedBranches);
	});
});

===================================================================
--- original.js
+++ change.js
@@ -171,9 +171,9 @@
 	var bananas = [];
 	var spiders = [];
 	var level = 1;
 	self.setupLevel();
-	var monkey = self.addChild(new Monkey());
+	monkey = self.addChild(new Monkey());
 	monkey.x = 1024;
 	monkey.y = 2732 - monkey.height;
 	var levelTxt = new Text2('Level: ' + level, {
 		size: 75,
@@ -187,11 +187,8 @@
 		fill: '#ffffff'
 	});
 	bananaTxt.anchor.set(1, 0);
 	LK.gui.topRight.addChild(bananaTxt);
-	var monkey = self.addChild(new Monkey());
-	monkey.x = 1024;
-	monkey.y = 2732 - monkey.height;
 	LK.on('tick', function () {
 		monkey.update();
 		for (var i = 0; i < branches.length; i++) {
 			branches[i].update();