var Nutcracker = Container.expand(function () {
	var self = Container.call(this);
	self.freeMouth = true;
	self.upperJaw = self.createAsset('upperJaw', 'Nutcracker Upper Jaw', .5, .5);
	self.lowerJaw = self.createAsset('lowerJaw', 'Nutcracker Lower Jaw', .5, .5);
	self.upperJaw.y -= 50;
	self.lowerJaw.y += 25;
	self.mouthUp = true;
	self.chewAnimation = function () {
		if (!self.freeMouth) {
			var chewRange = 75;
			var chewSpeed = 3;
			if (self.mouthUp) {
				if (self.upperJaw.y > -chewRange) {
					self.upperJaw.y -= chewSpeed;
				} else {
					self.mouthUp = false;
				}
			} else {
				if (self.upperJaw.y < -50) {
					self.upperJaw.y += chewSpeed;
				} else {
					self.mouthUp = true;
				}
			}
		}
	};
	self.isDragged = false;
	self.isReady = false;
	var yLevels = [1710, 1530, 1310];
	self.move = function () {
		if (self.mouthTimer && self.mouthTimer > 0) {
			self.mouthTimer--;
			self.chewAnimation();
			if (self.mouthTimer === 0) {
				self.freeMouth = true;
				self.upperJaw.y = -50;
			}
		}
		if (!self.isDragged && !yLevels.includes(self.y)) {
			if (self.y < yLevels[0]) {
				self.y += 5;
			} else {
				self.y -= 5;
			}
			if (yLevels.some(level => self.y >= level && self.y - 5 < level)) {
				self.y = yLevels.find(level => self.y >= level && self.y - 5 < level);
				self.isReady = true;
			}
		}
	};
	self.on('down', function (obj) {
		if (self.freeMouth) {
			var pos = obj.event.getLocalPosition(self.parent);
			self.y = pos.y;
			self.x = pos.x;
			self.isDragged = true;
			self.isReady = false;
			draggedObject = self;
		}
	});
});
var MouseTrap = Container.expand(function () {
	var self = Container.call(this);
	var mousetrapGraphics = self.createAsset('mousetrap', 'Mouse Trap Graphics', .5, .5);
	self.activate = function () {};
});
var BuildingMenu = Container.expand(function () {
	var self = Container.call(this);
	self.y = 0;
	self.x = 1024;
	var menuBackground = self.createAsset('menuBackground', 'Building Menu Background', 0.5, 0);
	self.addChild(menuBackground);
});
var NutcrackerButton = Container.expand(function (nutcrackers) {
	var self = Container.call(this);
	var buttonGraphics = self.createAsset('nutcrackerButton', 'Nutcracker Build Button', 0.5, 0);
	self.addChild(buttonGraphics);
	self.y = 200;
	var dragObject = null;
	self.on('down', function (obj) {
		if (ressourcesNuts >= 3) {
			var pos = obj.event.getLocalPosition(self.parent);
			dragObject = new Nutcracker();
			self.parent.addChild(dragObject);
			dragObject.y = pos.y + 200;
			dragObject.x = pos.x;
		}
	});
	stage.on('up', function (obj) {
		var pos = obj.event.getLocalPosition(self);
		if (dragObject) {
			if (pos.y > 200) {
				var newNutcracker = new Nutcracker();
				newNutcracker.x = pos.x;
				newNutcracker.y = pos.y + 200;
				self.parent.addChild(newNutcracker);
				nutcrackers.push(newNutcracker);
				dragObject.destroy();
				dragObject = null;
				ressourcesNuts -= 3;
			} else {
				dragObject.destroy();
				dragObject = null;
			}
		}
	});
	stage.on('move', function (obj) {
		if (dragObject) {
			var pos = obj.event.getLocalPosition(self);
			dragObject.x = pos.x;
			dragObject.y = pos.y + 200;
		}
	});
});
var Mouse = Container.expand(function () {
	var self = Container.call(this);
	self.mouseTail = self.createAsset('mouseTail', 'Mouse Graphics', .5, .5);
	self.mouseBody = self.createAsset('mouseBody', 'Mouse Graphics', .5, .5);
	self.mouseHead = self.createAsset('mouseHead', 'Mouse Graphics', .5, .5);
	self.mouseHead.y -= 90;
	self.mouseHead.x += 10;
	self.mouseTail.x -= 50;
	self.mouseTail.y -= 10;
	self.reachedCheese = false;
	self.move = function () {
		if (self.reachedCheese) {
			self.x -= 2;
			if (self.width > 0) {
				self.width = -150;
			}
		} else {
			self.x += 2;
		}
		var tailRotationSpeed = 0.020;
		var tailRotationRange = 20 * (Math.PI / 180);
		if (self.tailRotationDirection === undefined) {
			self.tailRotationDirection = 1;
		}
		if (self.mouseTail.rotation > tailRotationRange) {
			self.tailRotationDirection = -1;
		} else if (self.mouseTail.rotation < -tailRotationRange) {
			self.tailRotationDirection = 1;
		}
		self.mouseTail.rotation += tailRotationSpeed * self.tailRotationDirection;
		self.mouseTail.y -= self.tailRotationDirection / 3;
		self.mouseHead.rotation += tailRotationSpeed * self.tailRotationDirection / 3;
		self.mouseHead.x += self.tailRotationDirection / 3;
		self.mouseHead.y += self.tailRotationDirection / 10;
	};
});
var FecalBall = Container.expand(function () {
	var self = Container.call(this);
	self.mouseTail = self.createAsset('mouseTail', 'Mouse Graphics', .5, .5);
	self.fecalBall = self.createAsset('fecalBall', 'Fecal Ball Graphics', .5, .5);
	self.mouseTail.x -= 50;
	self.move = function () {
		self.x += 5;
		self.fecalBall.rotation += 0.1;
	};
});
var RoyalCheese = Container.expand(function () {
	var self = Container.call(this);
	var cheeseGraphics = self.createAsset('royalCheese', 'Royal Cheese Graphics', .5, .5);
	self.abducted = false;
});
var RollingNut = Container.expand(function () {
	var self = Container.call(this);
	var rollingNutGraphics = self.createAsset('rollingNut', 'Rolling Nut Graphics', .5, .5);
	self.move = function () {
		self.x += 2;
		self.rotation += 0.1;
	};
});
var draggedObject = null;
var ressourcesNuts = 3;
var Game = Container.expand(function () {
	var self = Container.call(this);
	function animateNutcracker(nutcracker, distance) {
		var animationStep = distance / 30;
		var targetX = nutcracker.x + distance;
		nutcracker.isReady = false;
		var animationInterval = LK.setInterval(function () {
			if (nutcracker.x < targetX) {
				nutcracker.x += animationStep;
			} else {
				nutcracker.x = targetX;
				nutcracker.isReady = true;
				LK.clearInterval(animationInterval);
			}
		}, 1000 / 60);
	}
	var yLevels = [2500, 2240, 1930];
	var background = self.createAsset('background', 'Background Graphics', 0, 0);
	self.addChildAt(background, 0);
	var buildingMenu = self.addChild(new BuildingMenu());
	self.addChild(buildingMenu);
	var nutsCounter = new Text2(ressourcesNuts.toString(), {
		size: 200,
		fill: "brown"
	});
	nutsCounter.anchor.set(0.5, 0);
	nutsCounter.x = 1700;
	nutsCounter.y = 100;
	self.addChild(nutsCounter);
	var nutcrackers = [];
	var mousetraps = [];
	var mice = [];
	var rollingNuts = [];
	var fecalBalls = [];
	var nutcrackerButton = self.addChild(new NutcrackerButton(nutcrackers));
	LK.gui.topCenter.addChild(nutcrackerButton);
	var tickCounter = 0;
	var updateCounter = 0;
	var mouseSpawnTimer = 360;
	var royalCheeses = [];
	var yLevels = [2500, 2240, 1930];
	yLevels.forEach(function (yLevel) {
		var newCheese = new RoyalCheese();
		newCheese.x = 2000;
		newCheese.y = yLevel;
		royalCheeses.push(newCheese);
		self.addChild(newCheese);
	});
	var fecalBallSpawnTimer = 3600;
	var miceTickCounter = new Text2(ressourcesNuts.toString(), {
		size: 200,
		fill: "#ccc"
	});
	miceTickCounter.anchor.set(0.5, 0);
	miceTickCounter.x = 500;
	miceTickCounter.y = 100;
	self.addChild(miceTickCounter);
	LK.on('tick', function () {
		tickCounter++;
		nutsCounter.setText(ressourcesNuts.toString());
		if (tickCounter % mouseSpawnTimer == 0) {
			var newMouse = new Mouse();
			newMouse.x = 0 - newMouse.width;
			newMouse.y = yLevels[Math.floor(Math.random() * yLevels.length)];
			mice.push(newMouse);
			self.addChild(newMouse);
			mouseSpawnTimer = Math.max(Math.round(mouseSpawnTimer * 0.99), 120);
			miceTickCounter.setText(mouseSpawnTimer.toString());
		}
		if (tickCounter % fecalBallSpawnTimer * 10 == 0) {
			var newFecalBall = new FecalBall();
			newFecalBall.x = 0 - newFecalBall.width;
			newFecalBall.y = yLevels[Math.floor(Math.random() * yLevels.length)];
			fecalBalls.push(newFecalBall);
			self.addChild(newFecalBall);
			fecalBallSpawnTimer = Math.max(Math.round(fecalBallSpawnTimer * 0.95), 300);
		}
		if (tickCounter % 1200 == 0) {
			var newRollingNut = new RollingNut();
			newRollingNut.x = 0 - newRollingNut.width;
			newRollingNut.y = yLevels[Math.floor(Math.random() * yLevels.length)];
			rollingNuts.push(newRollingNut);
			self.addChild(newRollingNut);
		}
		for (var j = 0; j < nutcrackers.length; j++) {
			if (nutcrackers[j].x > 575) {
				nutcrackers[j].x = 575;
			} else if (nutcrackers[j].x < -600) {
				nutcrackers[j].x = -600;
			}
		}
		for (var i = 0; i < nutcrackers.length; i++) {
			nutcrackers[i].move();
		}
		for (var i = 0; i < mousetraps.length; i++) {
			mousetraps[i].activate();
		}
		for (var i = mice.length - 1; i >= 0; i--) {
			mice[i].move();
			for (var j = 0; j < nutcrackers.length; j++) {
				if (nutcrackers[j].isReady && nutcrackers[j].freeMouth && !nutcrackers[j].isDragged && mice[i].intersects(nutcrackers[j])) {
					if (mice[i].children.length > 3) {
						var cheese = mice[i].removeChildAt(3);
						self.addChild(cheese);
						cheese.x = mice[i].x;
						cheese.y = mice[i].y;
						cheese.abducted = false;
					}
					mice[i].destroy();
					mice.splice(i, 1);
					nutcrackers[j].freeMouth = false;
					nutcrackers[j].mouthTimer = 180;
					break;
				}
			}
			for (var c = 0; c < royalCheeses.length; c++) {
				if (royalCheeses[c].x < -royalCheeses[c].width) {
					LK.showGameOver();
					break;
				}
				if (mice[i] && mice[i].intersects(royalCheeses[c]) && !royalCheeses[c].abducted) {
					mice[i].reachedCheese = true;
					royalCheeses[c].abducted = true;
					royalCheeses[c].parent.removeChild(royalCheeses[c]);
					mice[i].addChild(royalCheeses[c]);
					royalCheeses[c].x = 0;
					royalCheeses[c].y = 0;
					break;
				}
			}
			if (mice[i] && mice[i].x > 2048 + mice[i].width) {
				mice[i].destroy();
				mice.splice(i, 1);
			}
		}
		for (var i = fecalBalls.length - 1; i >= 0; i--) {
			fecalBalls[i].move();
			for (var j = 0; j < nutcrackers.length; j++) {
				if (nutcrackers[j].isReady && fecalBalls[i].intersects(nutcrackers[j])) {
					var mousePosX = fecalBalls[i].x;
					var mousePosY = fecalBalls[i].y;
					if (fecalBalls[i].x < 1400) {
						animateNutcracker(nutcrackers[j], 200);
					}
					var newMouse = new Mouse();
					newMouse.x = mousePosX;
					newMouse.y = mousePosY;
					mice.push(newMouse);
					self.addChild(newMouse);
					fecalBalls[i].destroy();
					fecalBalls.splice(i, 1);
					break;
				}
			}
			if (fecalBalls[i] && fecalBalls[i].x > 2048 + fecalBalls[i].width) {
				fecalBalls[i].destroy();
				fecalBalls.splice(i, 1);
			}
		}
		for (var i = rollingNuts.length - 1; i >= 0; i--) {
			rollingNuts[i].move();
			for (var j = 0; j < nutcrackers.length; j++) {
				if (nutcrackers[j].isReady && nutcrackers[j].freeMouth && !nutcrackers[j].isDragged && rollingNuts[i].intersects(nutcrackers[j])) {
					rollingNuts[i].destroy();
					rollingNuts.splice(i, 1);
					nutcrackers[j].freeMouth = false;
					nutcrackers[j].mouthTimer = 300;
					ressourcesNuts++;
					break;
				}
			}
			if (rollingNuts[i] && rollingNuts[i].x > 2048 + rollingNuts[i].width) {
				rollingNuts[i].destroy();
				rollingNuts.splice(i, 1);
			}
		}
	});
	stage.on('up', function (obj) {
		if (draggedObject) {
			var pos = obj.event.getLocalPosition(self);
			draggedObject.isDragged = false;
			draggedObject.isReady = false;
			draggedObject = null;
		}
	});
	stage.on('move', function (obj) {
		if (draggedObject) {
			var pos = obj.event.getLocalPosition(self);
			draggedObject.x = pos.x - 1000;
			draggedObject.y = pos.y - 600;
		}
	});
});

===================================================================
--- original.js
+++ change.js
@@ -289,9 +289,13 @@
 					break;
 				}
 			}
 			for (var c = 0; c < royalCheeses.length; c++) {
-				if (mice[i].intersects(royalCheeses[c]) && !royalCheeses[c].abducted) {
+				if (royalCheeses[c].x < -royalCheeses[c].width) {
+					LK.showGameOver();
+					break;
+				}
+				if (mice[i] && mice[i].intersects(royalCheeses[c]) && !royalCheeses[c].abducted) {
 					mice[i].reachedCheese = true;
 					royalCheeses[c].abducted = true;
 					royalCheeses[c].parent.removeChild(royalCheeses[c]);
 					mice[i].addChild(royalCheeses[c]);