===================================================================
--- original.js
+++ change.js
@@ -27,33 +27,59 @@
 	self.onDestroy = function () {};
 	// Enable inheritance
 	return self;
 });
+var ProgressBar = ConfigContainer.expand(function (config) {
+	var self = ConfigContainer.call(this, config);
+	var width = config.width || 100;
+	var height = config.height || 10;
+	var weight = config.weight || 4;
+	self.attachAsset('shapeBox', {
+		width: width + 2 * weight,
+		height: height + 2 * weight,
+		anchorX: 0.5,
+		anchorY: 0.5,
+		tint: 0x000000
+	});
+	var tint = config.tint || 0xFFFFFF;
+	var bar = self.attachAsset('shapeBox', {
+		x: -width,
+		width: width,
+		height: height,
+		anchorX: 0.5,
+		anchorY: 0.5,
+		tint: tint
+	});
+	self.updatePercentage = function (percentage) {
+		bar.scale.x = Math.min(1.0, Math.max(0, percentage));
+	};
+	if (config.percentage !== undefined) {
+		self.updatePercentage(config.percentage);
+	}
+});
 var JoystickKnob = ConfigContainer.expand(function (config) {
 	var self = ConfigContainer.call(this, config);
 	self.attachAsset('shapeEllipse', {
 		width: config.size,
 		height: config.size,
 		anchorX: 0.5,
 		anchorY: 0.5,
-		tint: 0xA0A0A0,
+		tint: 0x808080,
 		alpha: 0.5
 	});
 	self.attachAsset('joystickKnob', {
 		width: config.size * 0.65,
 		height: config.size * 0.65,
 		anchorX: 0.5,
 		anchorY: 0.5,
-		tint: 0x000000,
-		alpha: 0.75
+		tint: 0x000000
 	});
 	self.attachAsset('outlineSmall', {
-		width: config.size,
-		height: config.size,
+		width: config.size + 5,
+		height: config.size + 5,
 		anchorX: 0.5,
 		anchorY: 0.5,
-		tint: 0x000000,
-		alpha: 0.75
+		tint: 0x000000
 	});
 	return self;
 });
 var Joystick = ConfigContainer.expand(function (config) {
@@ -64,18 +90,17 @@
 		width: size,
 		height: size,
 		anchorX: 0.5,
 		anchorY: 0.5,
-		tint: 0x808080,
+		tint: 0xA0A0A0,
 		alpha: 0.5
 	});
 	self.attachAsset('outlineLarge', {
-		width: size,
-		height: size,
+		width: size + 5,
+		height: size + 5,
 		anchorX: 0.5,
 		anchorY: 0.5,
-		tint: 0x000000,
-		alpha: 0.75
+		tint: 0x000000
 	});
 	var knob = self.addChild(new JoystickKnob({
 		size: size / 2
 	}));
@@ -125,8 +150,54 @@
 		knob.y = 0;
 	};
 	return self;
 });
+var Hero = ConfigContainer.expand(function (config) {
+	var self = ConfigContainer.call(this, config);
+	self.speed = HERO_SPEED_BASE;
+	self.healthMax = HERO_HEALTH_BASE;
+	self.health = self.healthMax;
+	var healthBar = self.addChild(new ProgressBar({
+		y: -self.height / 2 - 10,
+		tint: HERO_COLOUR
+	}));
+	self.update = function () {
+		if (!isPaused && joystick.direction !== undefined) {
+			self.rotation = joystick.direction;
+			var speedX = Math.cos(joystick.direction) * joystick.magnitude * self.speed;
+			var speedY = Math.sin(joystick.direction) * joystick.magnitude * self.speed;
+			self.x += speedX;
+			self.y += speedY;
+			if (self.x < HERO_BORDER) {
+				self.x = HERO_BORDER;
+			} else if (self.x > GAME_WIDTH - HERO_BORDER) {
+				self.x = GAME_WIDTH - HERO_BORDER;
+			}
+			if (self.y < HERO_BORDER) {
+				self.y = HERO_BORDER;
+			} else if (self.y > GAME_WIDTH - HERO_BORDER) {
+				self.y = GAME_WIDTH - HERO_BORDER;
+			}
+			self.scale.x = speedX < 0 ? -1 : 1;
+		}
+	};
+	self.takeDamage = function (amount) {
+		self.health = Math.max(0, self.health - amount);
+		healthBar.updatePercentage(self.health / self.healthMax);
+		LK.effects.flashObject(self.collision, 0xAA0000, 1000);
+		if (self.health <= 0) {
+			LK.effects.flashScreen(0xAA0000, 1000);
+			LK.showGameOver();
+		}
+	};
+	self.healPercentage = function (percentage) {
+		if (percentage > 0) {
+			self.health = Math.min(self.healthMax, self.health + self.healthMax * percentage);
+			LK.effects.flashObject(self.collision, HERO_COLOUR, 1000);
+		}
+		healthBar.updatePercentage(self.health / self.healthMax);
+	};
+});
 var SortingContainer = Container.expand(function () {
 	var self = Container.call(this);
 	self.update = function () {
 		self.children.sort(function (a, b) {
@@ -161,8 +232,10 @@
 var HERO_HEALTH_BASE = 100;
 var HERO_HEALTH_BONUS = 30;
 var HERO_SPEED_BASE = 8;
 var HERO_SPEED_BONUS = 2;
+var HERO_XP_REQUIRED = 20;
+var HERO_XP_SCALING = 1.2;
 // Enemy settings
 var ENEMY_COLOUR = 0xAA0000;
 var ENEMY_BORDER = 50; // Forced minimum move distance from the edge of the screen
 var ENEMY_BORDER_SPAWN = -100;
@@ -218,8 +291,11 @@
 //==============================================================================
 ;
 // Variables
 var isPaused = false;
+var level = 1;
+var experience = 0;
+var levelRequirement = HERO_XP_REQUIRED;
 var enemyCount = 0;
 var minorBoonCount = 0;
 var majorBoonCount = 0;
 var pickupHealthCount = 0;
@@ -242,20 +318,24 @@
 };
 ;
 // Game instances
 game.attachAsset('grassTop', {
-	y: HERO_BORDER,
+	y: HERO_BORDER - 100,
 	x: GAME_WIDTH / 2,
 	anchorX: 0.5
 });
 game.attachAsset('grassBot', {
-	y: GAME_HEIGHT - HERO_BORDER,
+	y: GAME_HEIGHT - HERO_BORDER + 100,
 	x: GAME_WIDTH / 2,
 	anchorX: 0.5,
 	anchorY: 1.0
 });
 var backgroundContainer = game.addChild(new Container());
 var midBackContainer = game.addChild(new SortingContainer());
+var hero = game.addChild(new Hero({
+	x: GAME_WIDTH / 2,
+	y: GAME_HEIGHT / 2
+}));
 var midFrontContainer = game.addChild(new SortingContainer());
 var foregroundContainer = game.addChild(new Container());
 var joystick = game.addChild(new Joystick({
 	size: 400,
@@ -273,5 +353,24 @@
 };
 game.up = function (x, y, obj) {
 	joystick.release(x, y, obj);
 };
-;
\ No newline at end of file
+;
+//==============================================================================
+// Global helper functions
+//==============================================================================
+;
+function checkBounds(x, y) {
+	var borderOrBorderX = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : 0;
+	var borderY = arguments.length > 3 ? arguments[3] : undefined;
+	return x < borderOrBorderX || x > 2048 - borderOrBorderX || y < (borderY || borderOrBorderX) || y > 2732 - (borderY || borderOrBorderX);
+}
+function addExperience(amount) {
+	experience += amount;
+	if (experience >= levelRequirement) {
+		level++;
+		experience -= levelRequirement;
+		levelRequirement = Math.floor(levelRequirement * 1.2);
+		// onLevelUp(level);
+	}
+	progressBar.setPercentage(experience / levelRequirement);
+}
\ No newline at end of file