===================================================================
--- original.js
+++ change.js
@@ -13,23 +13,14 @@
 		blockRows.push(self.addChild(new BlockRow(settings)));
 	};
 	self.popRow = function () {
 		blockRows.pop();
-		var _iterator = _createForOfIteratorHelper(blockRows[0].blocks),
-			_step;
-		try {
-			for (_iterator.s(); !(_step = _iterator.n()).done;) {
-				var block = _step.value;
-				if (block) {
-					block.downBlock = undefined;
-				}
+		blockRows[0].blocks.forEach(function (block) {
+			if (block) {
+				block.downBlock = undefined;
 			}
-		} catch (err) {
-			_iterator.e(err);
-		} finally {
-			_iterator.f();
-		}
-		seld.addRow({});
+		});
+		self.addRow({});
 	};
 	return self;
 });
 var ConfigContainer = Container.expand(function (config) {
@@ -84,9 +75,16 @@
 		anchorY: 0,
 		width: LAVA_SLICE_WIDTH,
 		tint: 0xFFA500
 	});
-	var glow = self.addChild(new Glow({
+	self.attachAsset('shapeBox', {
+		width: LAVA_SLICE_WIDTH,
+		height: 5,
+		anchorX: 0.5,
+		anchorY: 0,
+		tint: 0xFF4D00
+	});
+	self.addChild(new Glow({
 		asset: 'shapeBox',
 		anchorX: 0.5,
 		anchorY: 0.75,
 		height: 20,
@@ -130,8 +128,17 @@
 	return self;
 });
 var BlockRow = ConfigContainer.expand(function (config) {
 	var self = ConfigContainer.call(this, config);
+	var blockClasses = generateBlockClasses(config.index);
+	self.blocks = [];
+	for (var i = 0; i < ROW_SPAN; i++) {
+		var blockClass = blockClasses[i];
+		self.blocks[i] = self.addChild(new blockClass({
+			x: (i - ROW_SPAN / 2) * BLOCK_SIZE * BLOCK_SCALE,
+			scale: BLOCK_SCALE
+		}));
+	}
 	return self;
 });
 var Block = ConfigContainer.expand(function (config) {
 	var self = ConfigContainer.call(this, config);
@@ -367,74 +374,8 @@
 
 /**** 
 * Game Code
 ****/ 
-function _createForOfIteratorHelper(r, e) {
-	var t = "undefined" != typeof Symbol && r[Symbol.iterator] || r["@@iterator"];
-	if (!t) {
-		if (Array.isArray(r) || (t = _unsupportedIterableToArray(r)) || e && r && "number" == typeof r.length) {
-			t && (r = t);
-			var _n = 0,
-				F = function F() {};
-			return {
-				s: F,
-				n: function n() {
-					return _n >= r.length ? {
-						done: !0
-					} : {
-						done: !1,
-						value: r[_n++]
-					};
-				},
-				e: function e(r) {
-					throw r;
-				},
-				f: F
-			};
-		}
-		throw new TypeError("Invalid attempt to iterate non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method.");
-	}
-	var o,
-		a = !0,
-		u = !1;
-	return {
-		s: function s() {
-			t = t.call(r);
-		},
-		n: function n() {
-			var r = t.next();
-			return a = r.done, r;
-		},
-		e: function e(r) {
-			u = !0, o = r;
-		},
-		f: function f() {
-			try {
-				a || null == t["return"] || t["return"]();
-			} finally {
-				if (u) {
-					throw o;
-				}
-			}
-		}
-	};
-}
-function _unsupportedIterableToArray(r, a) {
-	if (r) {
-		if ("string" == typeof r) {
-			return _arrayLikeToArray(r, a);
-		}
-		var t = {}.toString.call(r).slice(8, -1);
-		return "Object" === t && r.constructor && (t = r.constructor.name), "Map" === t || "Set" === t ? Array.from(r) : "Arguments" === t || /^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(t) ? _arrayLikeToArray(r, a) : void 0;
-	}
-}
-function _arrayLikeToArray(r, a) {
-	(null == a || a > r.length) && (a = r.length);
-	for (var e = 0, n = Array(a); e < a; e++) {
-		n[e] = r[e];
-	}
-	return n;
-}
 var LAVA_LINE = game.height - 200;
 var LAVA_SLICE_COUNT = 18;
 var LAVA_SLICE_WIDTH = 128;
 var LAVA_BOB_HEIGHT = 10;
@@ -444,17 +385,25 @@
 var BLOCK_SIZE = 100;
 var BLOCK_HALFSIZE = BLOCK_SIZE * 0.5;
 var BLOCK_ROTATE_SPEED = 100;
 var LIGHT_GROW_SPEED = 500;
-var blockTypes = [BlockX, BlockT, BlockLine, BlockL, BlockBlank];
-blockTypes.forEach(function (BlockType, index) {
-	var block = game.addChild(new BlockType({
-		x: game.width / 2,
-		y: 300 + index * 300,
-		scale: BLOCK_SCALE
-	}));
-});
+var ROW_SPAN = 7;
+var ROW_SPAN_BASE = 7; // Define ROW_SPAN_BASE
+var ROW_MIDPOINT = Math.floor(ROW_SPAN_BASE / 2);
 var blockManager = game.addChild(new BlockManager());
 var lava = game.addChild(new Lava({
 	x: game.width / 2,
 	y: LAVA_LINE
-}));
\ No newline at end of file
+}));
+function generateBlockClasses(index) {
+	switch (index) {
+		case 0:
+			return [BlockBlank, BlockBlank, BlockBlank, BlockX, BlockBlank, BlockBlank, BlockBlank];
+		case 1:
+			return [BlockBlank, randomizeBlockClass(index), randomizeBlockClass(index), BlockX, randomizeBlockClass(index), randomizeBlockClass(index), BlockBlank];
+		default:
+			return [randomizeBlockClass(index), randomizeBlockClass(index), randomizeBlockClass(index), randomizeBlockClass(index), randomizeBlockClass(index), randomizeBlockClass(index), randomizeBlockClass(index), randomizeBlockClass(index)];
+	}
+}
+function randomizeBlockClass(index) {
+	var classes = [BlockBlank, BlockT, BlockX, BlockLine, BlockL];
+}
\ No newline at end of file