/**** 
* Plugins
****/ 
var tween = LK.import("@upit/tween.v1");

/**** 
* Classes
****/ 
// Block obstacle
var Block = Container.expand(function () {
	var self = Container.call(this);
	var blockGfx = self.attachAsset('block', {
		anchorX: 0.5,
		anchorY: 1
	});
	self.width = blockGfx.width;
	self.height = blockGfx.height;
	self.type = 'block';
	self.update = function () {
		self.x -= obstacleSpeed;
	};
	return self;
});
// Player Cube
var Cube = Container.expand(function () {
	var self = Container.call(this);
	var cubeGfx = self.attachAsset('cube', {
		anchorX: 0.5,
		anchorY: 1
	});
	self.width = cubeGfx.width;
	self.height = cubeGfx.height;
	self.velY = 0;
	self.isOnGround = false;
	// Jump method
	self.jump = function () {
		if (self.isOnGround) {
			self.velY = -32; // Reduced jump velocity for slower jump
			self.isOnGround = false;
		}
	};
	// Update method
	self.update = function () {
		// Gravity
		self.velY += 2.8; // Reduced gravity for slower jump arc
		if (self.velY > 60) self.velY = 60;
		self.y += self.velY;
		// Prevent falling below ground
		if (self.y > groundY) {
			self.y = groundY;
			self.velY = 0;
			self.isOnGround = true;
		}
	};
	return self;
});
// Minicoin collectible
var Minicoin = Container.expand(function () {
	var self = Container.call(this);
	var coinGfx = self.attachAsset('minicoin', {
		anchorX: 0.5,
		anchorY: 1
	});
	self.width = coinGfx.width;
	self.height = coinGfx.height;
	self.type = 'minicoin';
	self.collected = false;
	self.update = function () {
		self.x -= obstacleSpeed;
	};
	return self;
});
// Spike obstacle
var Spike = Container.expand(function () {
	var self = Container.call(this);
	var spikeGfx = self.attachAsset('spike', {
		anchorX: 0.5,
		anchorY: 1
	});
	self.width = spikeGfx.width;
	self.height = spikeGfx.height;
	self.type = 'spike';
	self.update = function () {
		self.x -= obstacleSpeed;
	};
	return self;
});

/**** 
* Initialize Game
****/ 
var game = new LK.Game({
	backgroundColor: 0xf0f0f0
});

/**** 
* Game Code
****/ 
// Block obstacle
// Spike obstacle
// Ground
// Cube player
// Constants
var groundHeight = 80;
var groundY = 2732 - groundHeight;
var startX = 400;
var startY = groundY;
var obstacleSpeed = 12;
var minObstacleGap = 420;
var maxObstacleGap = 700;
var lastObstacleX = 0;
var score = 0;
var gameStarted = false;
// Arrays
var obstacles = [];
// Add background
var background = LK.getAsset('background', {
	anchorX: 0,
	anchorY: 0
});
background.x = 0;
background.y = 0;
game.addChild(background);
// Add ground
var ground = LK.getAsset('ground', {
	anchorX: 0,
	anchorY: 0
});
ground.x = 0;
ground.y = groundY;
game.addChild(ground);
// Add player cube
var cube = new Cube();
cube.x = startX;
cube.y = startY;
game.addChild(cube);
// Score text
var scoreTxt = new Text2('0', {
	size: 120,
	fill: 0x222222
});
scoreTxt.anchor.set(0.5, 0);
LK.gui.top.addChild(scoreTxt);
// Helper: spawn obstacle
function spawnObstacle() {
	// Randomly choose spike or block structure
	var type = Math.random() < 0.6 ? 'spike' : 'block';
	if (type === 'spike') {
		var obs = new Spike();
		obs.x = 2048 + 100;
		obs.y = groundY;
		obstacles.push(obs);
		game.addChild(obs);
		lastObstacleX = obs.x;
	} else {
		// Structure: randomize height and length
		var platformHeight = Math.floor(Math.random() * 2) + 1; // 1 or 2 blocks high
		var platformLength = Math.floor(Math.random() * 3) + 2; // 2 to 4 blocks long
		var baseX = 2048 + 100;
		var blockW = 120;
		var blockH = 120;
		var minicoinsOnTop = Math.random() < 0.8; // 80% chance to spawn coins
		for (var i = 0; i < platformLength; ++i) {
			for (var j = 0; j < platformHeight; ++j) {
				var block = new Block();
				block.x = baseX + i * blockW;
				block.y = groundY - j * blockH;
				obstacles.push(block);
				game.addChild(block);
				lastObstacleX = block.x;
			}
			// Place minicoins on top of the structure
			if (minicoinsOnTop && platformHeight > 0) {
				var coin = new Minicoin();
				coin.x = baseX + i * blockW;
				coin.y = groundY - platformHeight * blockH - 10; // 10px above top block
				obstacles.push(coin);
				game.addChild(coin);
			}
		}
	}
}
// Helper: reset game state
function resetGame() {
	// Remove obstacles
	for (var i = 0; i < obstacles.length; ++i) {
		obstacles[i].destroy();
	}
	obstacles.length = 0;
	cube.x = startX;
	cube.y = startY;
	cube.velY = 0;
	cube.isOnGround = true;
	lastObstacleX = 1200;
	score = 0;
	scoreTxt.setText(score);
	gameStarted = false;
}
// Start game on first tap
game.down = function (x, y, obj) {
	if (!gameStarted) {
		gameStarted = true;
		return;
	}
	cube.jump();
};
// Main update loop
game.update = function () {
	if (!gameStarted) return;
	// Update player
	cube.update();
	// Update obstacles
	for (var i = obstacles.length - 1; i >= 0; --i) {
		var obs = obstacles[i];
		obs.update();
		// Remove if off screen
		if (obs.x < -200) {
			obs.destroy();
			obstacles.splice(i, 1);
			continue;
		}
		// Collision detection
		if (obs.type === 'minicoin') {
			if (!obs.collected && cube.intersects(obs)) {
				obs.collected = true;
				score += 5; // Minicoin gives 5 points
				scoreTxt.setText(score);
				obs.destroy();
				obstacles.splice(i, 1);
				continue;
			}
		} else {
			if (cube.intersects(obs)) {
				// Flash screen and game over
				LK.effects.flashScreen(0xff0000, 800);
				LK.showGameOver();
				return;
			}
			// Score: passed obstacle
			if (!obs.passed && obs.x + obs.width / 2 < cube.x - cube.width / 2) {
				obs.passed = true;
				score += 1;
				scoreTxt.setText(score);
			}
		}
	}
	// Spawn new obstacles
	if (obstacles.length === 0 || 2048 - lastObstacleX > minObstacleGap + Math.random() * (maxObstacleGap - minObstacleGap)) {
		spawnObstacle();
	}
};
// Reset game on game over
LK.on('gameover', function () {
	resetGame();
});
// Initial state
resetGame();

===================================================================
--- original.js
+++ change.js
@@ -53,8 +53,24 @@
 		}
 	};
 	return self;
 });
+// Minicoin collectible
+var Minicoin = Container.expand(function () {
+	var self = Container.call(this);
+	var coinGfx = self.attachAsset('minicoin', {
+		anchorX: 0.5,
+		anchorY: 1
+	});
+	self.width = coinGfx.width;
+	self.height = coinGfx.height;
+	self.type = 'minicoin';
+	self.collected = false;
+	self.update = function () {
+		self.x -= obstacleSpeed;
+	};
+	return self;
+});
 // Spike obstacle
 var Spike = Container.expand(function () {
 	var self = Container.call(this);
 	var spikeGfx = self.attachAsset('spike', {
@@ -126,23 +142,44 @@
 scoreTxt.anchor.set(0.5, 0);
 LK.gui.top.addChild(scoreTxt);
 // Helper: spawn obstacle
 function spawnObstacle() {
-	// Randomly choose spike or block
+	// Randomly choose spike or block structure
 	var type = Math.random() < 0.6 ? 'spike' : 'block';
-	var obs;
 	if (type === 'spike') {
-		obs = new Spike();
+		var obs = new Spike();
 		obs.x = 2048 + 100;
 		obs.y = groundY;
+		obstacles.push(obs);
+		game.addChild(obs);
+		lastObstacleX = obs.x;
 	} else {
-		obs = new Block();
-		obs.x = 2048 + 100;
-		obs.y = groundY;
+		// Structure: randomize height and length
+		var platformHeight = Math.floor(Math.random() * 2) + 1; // 1 or 2 blocks high
+		var platformLength = Math.floor(Math.random() * 3) + 2; // 2 to 4 blocks long
+		var baseX = 2048 + 100;
+		var blockW = 120;
+		var blockH = 120;
+		var minicoinsOnTop = Math.random() < 0.8; // 80% chance to spawn coins
+		for (var i = 0; i < platformLength; ++i) {
+			for (var j = 0; j < platformHeight; ++j) {
+				var block = new Block();
+				block.x = baseX + i * blockW;
+				block.y = groundY - j * blockH;
+				obstacles.push(block);
+				game.addChild(block);
+				lastObstacleX = block.x;
+			}
+			// Place minicoins on top of the structure
+			if (minicoinsOnTop && platformHeight > 0) {
+				var coin = new Minicoin();
+				coin.x = baseX + i * blockW;
+				coin.y = groundY - platformHeight * blockH - 10; // 10px above top block
+				obstacles.push(coin);
+				game.addChild(coin);
+			}
+		}
 	}
-	obstacles.push(obs);
-	game.addChild(obs);
-	lastObstacleX = obs.x;
 }
 // Helper: reset game state
 function resetGame() {
 	// Remove obstacles
@@ -182,20 +219,31 @@
 			obstacles.splice(i, 1);
 			continue;
 		}
 		// Collision detection
-		if (cube.intersects(obs)) {
-			// Flash screen and game over
-			LK.effects.flashScreen(0xff0000, 800);
-			LK.showGameOver();
-			return;
+		if (obs.type === 'minicoin') {
+			if (!obs.collected && cube.intersects(obs)) {
+				obs.collected = true;
+				score += 5; // Minicoin gives 5 points
+				scoreTxt.setText(score);
+				obs.destroy();
+				obstacles.splice(i, 1);
+				continue;
+			}
+		} else {
+			if (cube.intersects(obs)) {
+				// Flash screen and game over
+				LK.effects.flashScreen(0xff0000, 800);
+				LK.showGameOver();
+				return;
+			}
+			// Score: passed obstacle
+			if (!obs.passed && obs.x + obs.width / 2 < cube.x - cube.width / 2) {
+				obs.passed = true;
+				score += 1;
+				scoreTxt.setText(score);
+			}
 		}
-		// Score: passed obstacle
-		if (!obs.passed && obs.x + obs.width / 2 < cube.x - cube.width / 2) {
-			obs.passed = true;
-			score += 1;
-			scoreTxt.setText(score);
-		}
 	}
 	// Spawn new obstacles
 	if (obstacles.length === 0 || 2048 - lastObstacleX > minObstacleGap + Math.random() * (maxObstacleGap - minObstacleGap)) {
 		spawnObstacle();