===================================================================
--- original.js
+++ change.js
@@ -27,18 +27,8 @@
 	self.onDestroy = function () {};
 	// Enable inheritance
 	return self;
 });
-var WeaponFireball = ConfigContainer.expand(function (config) {
-	var self = ConfigContainer.call(this, config);
-	// Define properties and methods for WeaponFireball
-	self.attachAsset('weaponFireball', {
-		anchorX: 0.5,
-		anchorY: 0.5
-	});
-	// Additional properties and methods can be added here
-	return self;
-});
 var ProgressBar = ConfigContainer.expand(function (config) {
 	var self = ConfigContainer.call(this, config);
 	var width = config.width || 120;
 	var height = config.height || 15;
@@ -62,8 +52,10 @@
 	};
 	if (config.percentage !== undefined) {
 		self.updatePercentage(config.percentage);
 	}
+	// Enable inheritance
+	return self;
 });
 var Pickup = ConfigContainer.expand(function (config) {
 	var self = ConfigContainer.call(this, config);
 	self.activated = false;
@@ -79,15 +71,14 @@
 			}
 		}
 	};
 	self.onActivate = function () {};
+	// Enable inheritance
+	return self;
 });
 var PickupWeapon = Pickup.expand(function (config) {
 	var self = Pickup.call(this, config);
-	var updateBase = function updateBase() {};
-	if (self) {
-		updateBase = self.update;
-	}
+	var updateBase = self.update;
 	var scaleBase = self.scale;
 	self.pickupRange = PICKUP_WEAPON_RANGE;
 	var graphics = self.attachAsset(config.graphics, {
 		anchorX: 0.5,
@@ -105,8 +96,10 @@
 			startingWeapons[i].callDestroy();
 		}
 		callDestroy();
 	};
+	// Enable inheritance
+	return self;
 });
 var PickupHealing = Pickup.expand(function (config) {
 	var self = Pickup.call(this, config);
 	var updateBase = self.update;
@@ -121,65 +114,11 @@
 	};
 	self.onActivate = function () {
 		hero.healPercentage(PICKUP_HEAL_MINOR);
 	};
+	// Enable inheritance
+	return self;
 });
-var PickupExperience = Pickup.expand(function (config) {
-	var self = Pickup.call(this, config);
-	var activeDist = 300;
-	var activeDistSqr = activeDist * activeDist;
-	var collectDistance = 80;
-	var collectDistanceSqr = collectDistance * collectDistance;
-	var combineDist = 150;
-	var combineDistSqr = combineDist * combineDist;
-	var experiencePickups = args.experiencePickups;
-	self.experience = args.experience;
-	experiencePickups.forEach(function (experiencePickup, node) {
-		if (args.experiencePickup !== self) {
-			var dx = experiencePickup.x - self.x;
-			var dy = experiencePickup.y - self.y;
-			var distanceSqr = dx * dx + dy * dy;
-			if (distanceSqr <= combineDistSqr) {
-				self.experience += experiencePickups.remove(node).experience;
-				experiencePickup.callDestroy();
-				self.x += dx / 2;
-				self.y += dy / 2;
-			}
-		}
-	});
-	var size = 'Small';
-	if (self.experience > 5) {
-		size = 'Medium';
-		if (self.experience > 10) {
-			size = 'Large';
-		}
-	}
-	var pickupGraphics = self.createAsset('pickupExperience' + size, {
-		anchorX: 0.5,
-		anchorY: 0.5
-	});
-	var active = false;
-	var speed = 20;
-	self.update = function (args) {
-		var hero = args.hero;
-		var dx = hero.x - self.x;
-		var dy = hero.y - self.y;
-		var distanceSqr = dx * dx + dy * dy;
-		if (distanceSqr <= activeDistSqr) {
-			self.active = true;
-			if (distanceSqr <= collectDistanceSqr) {
-				addExperience(self.experience);
-				return true;
-			}
-		}
-		if (self.active) {
-			var distance = Math.sqrt(distanceSqr);
-			self.x += dx / distance * speed;
-			self.y += dy / distance * speed;
-		}
-	};
-	self.onActivate = function () {};
-});
 var PickupCrucifix = Pickup.expand(function (config) {
 	var self = Pickup.call(this, config);
 	self.pickupRange = PICKUP_CRUCIFIX_RANGE;
 	self.attachAsset('pickupCrucifix', {
@@ -506,16 +445,16 @@
 }));
 startingWeapons.push(backgroundContainer.addChild(new PickupWeapon({
 	x: GAME_WIDTH / 4 * 2,
 	y: GAME_HEIGHT / 8 * 3,
-	graphics: 'weaponFireball',
-	weaponClass: WeaponFireball
+	graphics: 'weaponFireball'
+	// weaponClass: WeaponFireball
 })));
 startingWeapons.push(backgroundContainer.addChild(new PickupWeapon({
 	x: GAME_WIDTH / 4 * 2,
 	y: GAME_HEIGHT / 8 * 5,
-	graphics: 'weaponCross',
-	weaponClass: WeaponCross
+	graphics: 'weaponCross'
+	// weaponClass: WeaponCross
 })));
 ;
 //==============================================================================
 // Global events