/**** 
* Classes
****/ 
// Bighorn class to represent the randomly spawned Bighorn
var Bighorn = Container.expand(function () {
	var self = Container.call(this);
	var bighornGraphics = self.attachAsset('Bighorn', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.speed = 15;
	self.update = function () {
		self.y += self.speed;
	};
});
// Cactus class to represent the randomly spawned Cactus
var Cactus = Container.expand(function () {
	var self = Container.call(this);
	var cactusGraphics = self.attachAsset('Cactus', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.speed = 15;
	self.update = function () {
		self.y += self.speed;
	};
});
// Coyote class to represent the randomly spawned Coyote
var Coyote = Container.expand(function () {
	var self = Container.call(this);
	var coyoteGraphics = self.attachAsset('Coyote', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.speed = 15;
	self.update = function () {
		self.y += self.speed;
	};
});
//<Assets used in the game will automatically appear here>
// DuneBuggy class to represent the player's vehicle
var DuneBuggy = Container.expand(function () {
	var self = Container.call(this);
	var buggyGraphics = self.attachAsset('duneBuggy', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.speed = 5;
	self.update = function () {
		// Update logic for the buggy, if needed
	};
});
// Joshua class to represent the randomly spawned Joshua
var Joshua = Container.expand(function () {
	var self = Container.call(this);
	var joshuaGraphics = self.attachAsset('Joshua', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.speed = 15;
	self.update = function () {
		self.y += self.speed;
	};
});
// Mojave class to represent the randomly spawned Mojave
var Mojave = Container.expand(function () {
	var self = Container.call(this);
	var mojaveGraphics = self.attachAsset('Mojave', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.speed = 15;
	self.update = function () {
		self.y += self.speed;
	};
});

/**** 
* Initialize Game
****/ 
var game = new LK.Game({
	backgroundColor: 0x000000 //Init game with black background 
});

/**** 
* Game Code
****/ 
var duneBuggy = game.addChild(new DuneBuggy());
duneBuggy.x = 2048 / 2;
duneBuggy.y = 2732 - 200;
var obstacles = [];
var supplies = [];
var score = 0;
var scoreTxt = new Text2('Distance: 0', {
	size: 100,
	fill: "#ffffff"
});
scoreTxt.anchor.set(0.5, 0);
LK.gui.top.addChild(scoreTxt);
var fuelTxt = new Text2('Fuel:', {
	size: 100,
	fill: "#ffffff"
});
fuelTxt.anchor.set(0.5, 0);
fuelTxt.y = scoreTxt.height;
LK.gui.top.addChild(fuelTxt);
var tiresTxt = new Text2('Tires:', {
	size: 100,
	fill: "#ffffff"
});
tiresTxt.anchor.set(0.5, 0);
tiresTxt.y = scoreTxt.height + fuelTxt.height;
LK.gui.top.addChild(tiresTxt);
var distance = 0;
var fuel = 15;
var tires = 100;
fuelTxt.setText('Fuel: ' + fuel + ' Gallons');
game.update = function () {
	if (LK.ticks % 60 == 0) {
		distance += 0.1;
		scoreTxt.setText('Distance: ' + distance.toFixed(1));
		if (distance % 2 < 0.1) {
			fuel -= 1;
			fuelTxt.setText('Fuel: ' + fuel + ' Gallons');
			if (fuel <= 0) {
				LK.showGameOver();
			}
		}
		// Spawn Bighorn, Cactus and Coyote at different intervals
		if (LK.ticks % 50 == 0) {
			var bighorn = new Bighorn();
			bighorn.x = Math.random() * 2048;
			bighorn.y = 0;
			game.addChild(bighorn);
		}
		if (LK.ticks % 70 == 0) {
			var cactus = new Cactus();
			cactus.x = Math.random() * 2048;
			cactus.y = 0;
			game.addChild(cactus);
		}
		if (LK.ticks % 90 == 0) {
			var coyote = new Coyote();
			coyote.x = Math.random() * 2048;
			coyote.y = 0;
			game.addChild(coyote);
		}
		if (LK.ticks % 110 == 0) {
			var joshua = new Joshua();
			joshua.x = Math.random() * 2048;
			joshua.y = 0;
			game.addChild(joshua);
		}
		if (LK.ticks % 130 == 0) {
			var mojave = new Mojave();
			mojave.x = Math.random() * 2048;
			mojave.y = 0;
			game.addChild(mojave);
		}
		// Check for collision between duneBuggy and Bighorn, Cactus, Coyote, Joshua or Mojave
		for (var i = game.children.length - 1; i >= 0; i--) {
			if (game.children[i] instanceof Bighorn || game.children[i] instanceof Cactus || game.children[i] instanceof Coyote || game.children[i] instanceof Joshua || game.children[i] instanceof Mojave) {
				if (duneBuggy.intersects(game.children[i])) {
					tires -= 3; // decrease tires by 3%
					tiresTxt.setText('Tires: ' + tires + '%'); // update tires text
					if (tires <= 0) {
						LK.showGameOver(); // game over if tires reach 0
					}
					game.children[i].destroy(); // destroy Bighorn, Cactus, Coyote or Joshua on collision
					return; // return after destroying Bighorn, Cactus, Coyote or Joshua to prevent accessing it after destruction
				} else if (game.children[i].y > 2732) {
					game.children[i].destroy(); // destroy Bighorn, Cactus, Coyote or Joshua if it leaves the screen
				}
			}
		}
	}
};
game.down = function (x, y, obj) {
	duneBuggy.x = x;
};
game.move = function (x, y, obj) {
	duneBuggy.x = x;
};
game.up = function (x, y, obj) {
	// No action needed on up event
};

===================================================================
--- original.js
+++ change.js
@@ -61,8 +61,20 @@
 	self.update = function () {
 		self.y += self.speed;
 	};
 });
+// Mojave class to represent the randomly spawned Mojave
+var Mojave = Container.expand(function () {
+	var self = Container.call(this);
+	var mojaveGraphics = self.attachAsset('Mojave', {
+		anchorX: 0.5,
+		anchorY: 0.5
+	});
+	self.speed = 15;
+	self.update = function () {
+		self.y += self.speed;
+	};
+});
 
 /**** 
 * Initialize Game
 ****/ 
@@ -138,11 +150,17 @@
 			joshua.x = Math.random() * 2048;
 			joshua.y = 0;
 			game.addChild(joshua);
 		}
-		// Check for collision between duneBuggy and Bighorn, Cactus or Coyote
+		if (LK.ticks % 130 == 0) {
+			var mojave = new Mojave();
+			mojave.x = Math.random() * 2048;
+			mojave.y = 0;
+			game.addChild(mojave);
+		}
+		// Check for collision between duneBuggy and Bighorn, Cactus, Coyote, Joshua or Mojave
 		for (var i = game.children.length - 1; i >= 0; i--) {
-			if (game.children[i] instanceof Bighorn || game.children[i] instanceof Cactus || game.children[i] instanceof Coyote || game.children[i] instanceof Joshua) {
+			if (game.children[i] instanceof Bighorn || game.children[i] instanceof Cactus || game.children[i] instanceof Coyote || game.children[i] instanceof Joshua || game.children[i] instanceof Mojave) {
 				if (duneBuggy.intersects(game.children[i])) {
 					tires -= 3; // decrease tires by 3%
 					tiresTxt.setText('Tires: ' + tires + '%'); // update tires text
 					if (tires <= 0) {