/**** 
* Classes
****/
// Class for individual cubes that can fall
var Cube = Container.expand(function () {
	var self = Container.call(this);
	self.attachAsset('cube', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.isFalling = false;
	self.velocityY = 0; // Initial vertical velocity for falling cubes
	self.update = function () {
		if (self.isFalling) {
			self.velocityY += 0.75; // Acceleration due to gravity increased by 50%
			self.y += self.velocityY; // Fall speed with acceleration
		}
	};
});
// Class for the poles consisting of cubes
var Pole = Container.expand(function () {
	var self = Container.call(this);
	self.cubes = [];
	self.addCube = function () {
		var cube = new Cube();
		cube.y = -(self.cubes.length * 100) - (self.cubes.length - 1) * 2;
		self.addChild(cube);
		self.cubes.push(cube);
	};
	self.makeCubesFall = function () {
		for (var i = self.cubes.length - 1; i >= 0; i--) {
			(function (index) {
				LK.setTimeout(function () {
					self.cubes[index].isFalling = true;
				}, index * 250); // Delay between each cube falling
			})(i);
		}
	};
	self.isSliding = false;
	self.slideDownUp = function () {
		if (!self.isSliding) {
			self.isSliding = true;
			var initialY = self.y;
			var step = 1;
			var distance = 10;
			var duration = 200;
			var steps = duration / (1000 / 60);
			var stepSize = distance / steps;
			var currentStep = 0;
			var slideInterval = LK.setInterval(function () {
				if (currentStep < steps) {
					self.y += stepSize;
					currentStep++;
				} else {
					LK.clearInterval(slideInterval);
					self.y = initialY;
					self.isSliding = false;
				}
			}, 1000 / 60);
		}
	};
	self.getHeight = function () {
		return self.cubes.length * 100 + (self.cubes.length - 1) * 2;
	};
});
// Class for the player's hero
var Hero = Container.expand(function () {
	var self = Container.call(this);
	var heroGraphics = self.attachAsset('hero', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.isOnGround = false;
	self.velocityY = 0;
	self.jump = function () {
		if (self.isOnGround) {
			self.velocityY = -15;
			self.isOnGround = false;
		}
	};
	self.update = function () {
		self.y += self.velocityY;
		self.velocityY += 0.5; // Gravity effect
	};
});
// Class for individual collapsing cubes
var CollapsingCube = Cube.expand(function () {
	var self = Cube.call(this);
	self.attachAsset('cube_collapse', {
		anchorX: 0.5,
		anchorY: 0.5
	});
});

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

/**** 
* Game Code
****/
// Initialize important asset arrays
// Initialize assets used in the game.
var poles = [];
var hero;
// Time tracking for cube_collapse
var lastCollapseTime = 0;
// Create the hero
hero = game.addChild(new Hero());
hero.x = 2048 / 2;
hero.y = 2732 - 150; // Start above the bottom of the screen
// Create initial poles
function createInitialPoles() {
	var poleSpacing = 2;
	var poleWidth = 100 + poleSpacing;
	var numPoles = Math.ceil(2048 / poleWidth);
	for (var i = 0; i < numPoles; i++) {
		var pole = game.addChild(new Pole());
		pole.x = i * poleWidth;
		pole.y = 2732 - 50; // Align base of pole with bottom of the screen and raise by 50 pixels
		for (var j = 0; j < 10; j++) {
			// Add 10 cubes to each pole to make them higher
			pole.addCube();
		}
		poles.push(pole);
	}
}
createInitialPoles();
// Event listener for jump action
game.on('down', function (obj) {
	hero.jump();
});
// Game tick update
LK.on('tick', function () {
	// Check if 30 seconds have passed to add a collapsing cube
	if (LK.ticks - lastCollapseTime >= 1800) {
		// 30 seconds at 60FPS
		var randomPoleIndex = Math.floor(Math.random() * poles.length);
		var randomPole = poles[randomPoleIndex];
		var collapsingCube = new CollapsingCube();
		collapsingCube.y = -(randomPole.cubes.length * 100) - (randomPole.cubes.length - 1) * 2;
		randomPole.addChild(collapsingCube);
		randomPole.cubes.push(collapsingCube);
		lastCollapseTime = LK.ticks;
	}
	hero.update();
	// Collision detection with poles
	for (var i = 0; i < poles.length; i++) {
		var pole = poles[i];
		if (hero.intersects(pole) && hero.velocityY > 0 && hero.y + hero.height / 2 < pole.y) {
			hero.y = pole.y - pole.getHeight() - hero.height / 2;
			hero.isOnGround = true;
			hero.velocityY = 0;
			pole.slideDownUp();
		}
	}
	// Remove off-screen poles and create new ones
	var poleSpacing = 2;
	var poleWidth = 100 + poleSpacing;
	if (poles.length > 0 && poles[0].x + poleWidth / 2 < 0) {
		poles[0].destroy();
		poles.shift();
		var newPole = game.addChild(new Pole());
		newPole.x = poles[poles.length - 1].x + poleWidth;
		newPole.y = 2732 - 50;
		var prevPoleHeight = poles[poles.length - 1].cubes.length;
		var minCubes = Math.max(6, prevPoleHeight - 1);
		var maxCubes = Math.min(14, prevPoleHeight + 1);
		var cubesCount = Math.floor(Math.random() * (maxCubes - minCubes + 1)) + minCubes;
		for (var j = 0; j < cubesCount; j++) {
			newPole.addCube();
		}
		poles.push(newPole);
	}
	// Move poles to the left to simulate hero running and make cubes fall after passing the middle
	for (var i = 0; i < poles.length; i++) {
		poles[i].x -= 5;
		if (poles[i].x < 2048 / 2 && !poles[i].hasMadeCubesFall) {
			poles[i].makeCubesFall();
			poles[i].hasMadeCubesFall = true;
		}
		// Update each cube in the pole
		for (var j = 0; j < poles[i].cubes.length; j++) {
			poles[i].cubes[j].update();
		}
	}
});

===================================================================
--- original.js
+++ change.js
@@ -1,22 +1,7 @@
 /**** 
 * Classes
 ****/
-var CollapsibleCube = Container.expand(function () {
-	var self = Container.call(this);
-	self.attachAsset('cube_collapse', {
-		anchorX: 0.5,
-		anchorY: 0.5
-	});
-	self.isFalling = false;
-	self.velocityY = 0; // Initial vertical velocity for falling cubes
-	self.update = function () {
-		if (self.isFalling) {
-			self.velocityY += 0.75; // Acceleration due to gravity
-			self.y += self.velocityY; // Fall speed with acceleration
-		}
-	};
-});
 // Class for individual cubes that can fall
 var Cube = Container.expand(function () {
 	var self = Container.call(this);
 	self.attachAsset('cube', {
@@ -32,29 +17,13 @@
 		}
 	};
 });
 // Class for the poles consisting of cubes
-var Pole = Container.expand(function (index) {
+var Pole = Container.expand(function () {
 	var self = Container.call(this);
-	self.index = index;
 	self.cubes = [];
 	self.addCube = function () {
-		var cube;
-		if (game.lastCollapsiblePoleIndices === undefined) {
-			game.lastCollapsiblePoleIndices = [];
-		}
-		var canBeCollapsible = game.lastCollapsiblePoleIndices.length < 2 || self.index > game.lastCollapsiblePoleIndices[game.lastCollapsiblePoleIndices.length - 1] + 1 && self.index > game.lastCollapsiblePoleIndices[game.lastCollapsiblePoleIndices.length - 2] + 1;
-		var timeSinceLastCollapse = game.elapsedTime - game.lastCollapseTime;
-		if (canBeCollapsible && timeSinceLastCollapse >= 30) {
-			cube = new CollapsibleCube();
-			game.lastCollapsiblePoleIndices.push(self.index);
-			game.lastCollapseTime = game.elapsedTime; // Update the last collapse time
-			if (game.lastCollapsiblePoleIndices.length > 2) {
-				game.lastCollapsiblePoleIndices.shift();
-			}
-		} else {
-			cube = new Cube();
-		}
+		var cube = new Cube();
 		cube.y = -(self.cubes.length * 100) - (self.cubes.length - 1) * 2;
 		self.addChild(cube);
 		self.cubes.push(cube);
 	};
@@ -113,27 +82,33 @@
 		self.y += self.velocityY;
 		self.velocityY += 0.5; // Gravity effect
 	};
 });
+// Class for individual collapsing cubes
+var CollapsingCube = Cube.expand(function () {
+	var self = Cube.call(this);
+	self.attachAsset('cube_collapse', {
+		anchorX: 0.5,
+		anchorY: 0.5
+	});
+});
 
 /**** 
 * Initialize Game
 ****/
 var game = new LK.Game({
-	backgroundColor: 0x000000,
-	// Init game with black background
-	elapsedTime: 0,
-	// Track elapsed time in the game
-	lastCollapseTime: 0 // Track the last time a 'cube_collapse' was added
+	backgroundColor: 0x000000 // Init game with black background
 });
 
 /**** 
 * Game Code
 ****/
-// Initialize assets used in the game.
 // Initialize important asset arrays
+// Initialize assets used in the game.
 var poles = [];
 var hero;
+// Time tracking for cube_collapse
+var lastCollapseTime = 0;
 // Create the hero
 hero = game.addChild(new Hero());
 hero.x = 2048 / 2;
 hero.y = 2732 - 150; // Start above the bottom of the screen
@@ -142,9 +117,9 @@
 	var poleSpacing = 2;
 	var poleWidth = 100 + poleSpacing;
 	var numPoles = Math.ceil(2048 / poleWidth);
 	for (var i = 0; i < numPoles; i++) {
-		var pole = game.addChild(new Pole(i));
+		var pole = game.addChild(new Pole());
 		pole.x = i * poleWidth;
 		pole.y = 2732 - 50; // Align base of pole with bottom of the screen and raise by 50 pixels
 		for (var j = 0; j < 10; j++) {
 			// Add 10 cubes to each pole to make them higher
@@ -159,10 +134,19 @@
 	hero.jump();
 });
 // Game tick update
 LK.on('tick', function () {
-	// Increment the elapsed time by the time since the last tick (1/60th of a second)
-	game.elapsedTime += 1 / 60;
+	// Check if 30 seconds have passed to add a collapsing cube
+	if (LK.ticks - lastCollapseTime >= 1800) {
+		// 30 seconds at 60FPS
+		var randomPoleIndex = Math.floor(Math.random() * poles.length);
+		var randomPole = poles[randomPoleIndex];
+		var collapsingCube = new CollapsingCube();
+		collapsingCube.y = -(randomPole.cubes.length * 100) - (randomPole.cubes.length - 1) * 2;
+		randomPole.addChild(collapsingCube);
+		randomPole.cubes.push(collapsingCube);
+		lastCollapseTime = LK.ticks;
+	}
 	hero.update();
 	// Collision detection with poles
 	for (var i = 0; i < poles.length; i++) {
 		var pole = poles[i];