/**** 
* 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', {
		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 = (self.cubes.length + 1) % 10 === 0 ? new CollapsibleCube() : new Cube();
		cube.y = -(self.cubes.length * 100) - (self.cubes.length - 1) * 2;
		self.addChild(cube);
		self.cubes.push(cube);
	};
	self.collapsePoleAndAdjacent = function (polesArray) {
		var currentIndex = polesArray.indexOf(self);
		var indicesToCollapse = [currentIndex - 1, currentIndex, currentIndex + 1];
		indicesToCollapse.forEach(function (index) {
			if (index >= 0 && index < polesArray.length) {
				var pole = polesArray[index];
				for (var i = pole.cubes.length - 1; i >= 0; i--) {
					(function (cubeIndex) {
						LK.setTimeout(function () {
							pole.cubes[cubeIndex].isFalling = true;
						}, cubeIndex * 250);
					})(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
	};
});

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

/**** 
* Game Code
****/
// Initialize assets used in the game.
// Initialize important asset arrays
var poles = [];
var hero;
// 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 () {
	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) {
			var hitCollapsibleCube = pole.cubes.some(function (cube) {
				return cube instanceof CollapsibleCube;
			});
			if (hitCollapsibleCube) {
				pole.collapsePoleAndAdjacent(poles);
			} else {
				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
@@ -36,21 +36,28 @@
 var Pole = Container.expand(function () {
 	var self = Container.call(this);
 	self.cubes = [];
 	self.addCube = function () {
-		var cube = (self.cubes.length + 1) % 10 === 0 && self.cubes.length % 2 === 0 ? new CollapsibleCube() : new Cube();
+		var cube = (self.cubes.length + 1) % 10 === 0 ? new CollapsibleCube() : 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.collapsePoleAndAdjacent = function (polesArray) {
+		var currentIndex = polesArray.indexOf(self);
+		var indicesToCollapse = [currentIndex - 1, currentIndex, currentIndex + 1];
+		indicesToCollapse.forEach(function (index) {
+			if (index >= 0 && index < polesArray.length) {
+				var pole = polesArray[index];
+				for (var i = pole.cubes.length - 1; i >= 0; i--) {
+					(function (cubeIndex) {
+						LK.setTimeout(function () {
+							pole.cubes[cubeIndex].isFalling = true;
+						}, cubeIndex * 250);
+					})(i);
+				}
+			}
+		});
 	};
 	self.isSliding = false;
 	self.slideDownUp = function () {
 		if (!self.isSliding) {
@@ -144,12 +151,19 @@
 	// 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();
+			var hitCollapsibleCube = pole.cubes.some(function (cube) {
+				return cube instanceof CollapsibleCube;
+			});
+			if (hitCollapsibleCube) {
+				pole.collapsePoleAndAdjacent(poles);
+			} else {
+				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;