===================================================================
--- original.js
+++ change.js
@@ -1,112 +1,120 @@
-/****
+/**** 
 * Classes
-****/
+****/ 
 // Class for bombs dropped by Viggen
 var Bomb = Container.expand(function () {
-  var self = Container.call(this);
-  var bombGraphics = self.attachAsset('bomb', {
-    anchorX: 0.5,
-    anchorY: 0.5
-  });
-  self.speed = 15;
-  self.update = function () {
-    self.y += self.speed;
-    if (self.y > 2732) {
-      self.destroy();
-    }
-  };
+	var self = Container.call(this);
+	var bombGraphics = self.attachAsset('bomb', {
+		anchorX: 0.5,
+		anchorY: 0.5
+	});
+	self.speed = 15;
+	self.update = function () {
+		self.y += self.speed;
+		if (self.y > 2732) {
+			self.destroy();
+		}
+	};
 });
 // Class for enemy defenses
 var Defense = Container.expand(function () {
-  var self = Container.call(this);
-  var defenseGraphics = self.attachAsset('defense', {
-    anchorX: 0.5,
-    anchorY: 0.5
-  });
-  self.speed = 5;
-  self.update = function () {
-    self.y += self.speed;
-    if (self.y > 2732) {
-      self.y = -100;
-    }
-  };
+	var self = Container.call(this);
+	var defenseGraphics = self.attachAsset('defense', {
+		anchorX: 0.5,
+		anchorY: 0.5
+	});
+	self.speed = 5;
+	self.update = function () {
+		self.y += self.speed;
+		if (self.y > 2732) {
+			self.y = -100;
+		}
+	};
 });
 //<Assets used in the game will automatically appear here>
 //<Write imports for supported plugins here>
 // Class for the player's aircraft
 var Viggen = Container.expand(function () {
-  var self = Container.call(this);
-  var viggenGraphics = self.attachAsset('viggen', {
-    anchorX: 0.5,
-    anchorY: 0.5
-  });
-  self.speed = 10;
-  self.update = function () {
-    // Update logic for Viggen
-  };
-  self.move = function (x, y, obj) {
-    self.x = x;
-    self.y = y;
-  };
+	var self = Container.call(this);
+	var viggenGraphics = self.attachAsset('viggen', {
+		anchorX: 0.5,
+		anchorY: 0.5
+	});
+	self.speed = 10;
+	self.update = function () {
+		// Update logic for Viggen
+	};
+	self.move = function (x, y, obj) {
+		self.x = x;
+		self.y = y;
+	};
 });
 
-/****
+/**** 
 * Initialize Game
-****/
+****/ 
 var game = new LK.Game({
-  backgroundColor: 0x000000 //Init game with black background 
+	backgroundColor: 0x000000 //Init game with black background 
 });
 
-/****
+/**** 
 * Game Code
-****/
+****/ 
 // Initialize player Viggen
 var viggen = game.addChild(new Viggen());
 viggen.x = 1024;
 viggen.y = 2400;
 // Initialize defenses
 var defenses = [];
 for (var i = 0; i < 5; i++) {
-  var defense = new Defense();
-  defense.x = Math.random() * 2048;
-  defense.y = Math.random() * -1000;
-  defenses.push(defense);
-  game.addChild(defense);
+	var defense = new Defense();
+	defense.x = Math.random() * 2048;
+	defense.y = Math.random() * -1000;
+	defenses.push(defense);
+	game.addChild(defense);
 }
 // Initialize bombs
 var bombs = [];
 // Handle game move events
 game.move = function (x, y, obj) {
-  viggen.move(x, y, obj);
+	viggen.move(x, y, obj);
 };
 // Handle game update events
 game.update = function () {
-  // Update defenses
-  defenses.forEach(function (defense) {
-    defense.update();
-    if (viggen.intersects(defense)) {
-      LK.effects.flashScreen(0xff0000, 1000);
-      LK.showGameOver();
-    }
-  });
-  // Update bombs
-  bombs.forEach(function (bomb, index) {
-    bomb.update();
-    defenses.forEach(function (defense) {
-      if (bomb.intersects(defense)) {
-        defense.destroy();
-        bomb.destroy();
-        defenses.splice(defenses.indexOf(defense), 1);
-        bombs.splice(index, 1);
-      }
-    });
-  });
-  // Drop bombs
-  if (LK.ticks % 60 === 0) {
-    var bomb = new Bomb();
-    bomb.x = viggen.x;
-    bomb.y = viggen.y;
-    bombs.push(bomb);
-    game.addChild(bomb);
-  }
+	// Update defenses
+	defenses.forEach(function (defense) {
+		defense.update();
+		if (viggen.intersects(defense)) {
+			LK.effects.flashScreen(0xff0000, 1000);
+			LK.showGameOver();
+		}
+	});
+	// Spawn new defenses every 2 seconds
+	if (LK.ticks % 120 === 0) {
+		var defense = new Defense();
+		defense.x = Math.random() * 2048;
+		defense.y = Math.random() * -1000;
+		defenses.push(defense);
+		game.addChild(defense);
+	}
+	// Update bombs
+	bombs.forEach(function (bomb, index) {
+		bomb.update();
+		defenses.forEach(function (defense) {
+			if (bomb.intersects(defense)) {
+				defense.destroy();
+				bomb.destroy();
+				defenses.splice(defenses.indexOf(defense), 1);
+				bombs.splice(index, 1);
+			}
+		});
+	});
+	// Drop bombs
+	if (LK.ticks % 60 === 0) {
+		var bomb = new Bomb();
+		bomb.x = viggen.x;
+		bomb.y = viggen.y;
+		bombs.push(bomb);
+		game.addChild(bomb);
+	}
 };
\ No newline at end of file