===================================================================
--- original.js
+++ change.js
@@ -1,6 +1,176 @@
-/****
+/**** 
+* Classes
+****/ 
+// Gold class: falling collectible
+var Gold = Container.expand(function () {
+	var self = Container.call(this);
+	var goldAsset = self.attachAsset('gold', {
+		anchorX: 0.5,
+		anchorY: 0.5
+	});
+	self.speed = 10 + Math.random() * 8; // randomize speed a bit
+	self.lastY = 0;
+	self.update = function () {
+		self.lastY = self.y;
+		self.y += self.speed;
+	};
+	return self;
+});
+// Miner class: player character
+var Miner = Container.expand(function () {
+	var self = Container.call(this);
+	var minerAsset = self.attachAsset('miner', {
+		anchorX: 0.5,
+		anchorY: 0.5
+	});
+	self.update = function () {};
+	return self;
+});
+// Game variables
+// Rock class: falling obstacle
+var Rock = Container.expand(function () {
+	var self = Container.call(this);
+	var rockAsset = self.attachAsset('rock', {
+		anchorX: 0.5,
+		anchorY: 0.5
+	});
+	self.speed = 12 + Math.random() * 8;
+	self.lastY = 0;
+	self.update = function () {
+		self.lastY = self.y;
+		self.y += self.speed;
+	};
+	return self;
+});
+
+/**** 
 * Initialize Game
-****/
+****/ 
 var game = new LK.Game({
 	backgroundColor: 0x000000
-});
\ No newline at end of file
+});
+
+/**** 
+* Game Code
+****/ 
+// Game variables
+var miner = new Miner();
+var golds = [];
+var rocks = [];
+var score = 0;
+var lives = 3;
+var lastGoldSpawn = 0;
+var lastRockSpawn = 0;
+var goldSpawnInterval = 60; // frames
+var rockSpawnInterval = 90; // frames
+// Add miner to game, position at bottom center
+game.addChild(miner);
+miner.x = 2048 / 2;
+miner.y = 2732 - 180;
+// Score and lives display
+var scoreTxt = new Text2('0', {
+	size: 120,
+	fill: 0xFFD700
+});
+scoreTxt.anchor.set(0.5, 0);
+LK.gui.top.addChild(scoreTxt);
+var livesTxt = new Text2('❤❤❤', {
+	size: 100,
+	fill: 0xFF4444
+});
+livesTxt.anchor.set(1, 0);
+LK.gui.topRight.addChild(livesTxt);
+// Dragging logic
+var dragging = false;
+game.down = function (x, y, obj) {
+	// Only allow drag if touch is on miner or below
+	if (y > miner.y - 120) {
+		dragging = true;
+		miner.x = Math.max(80, Math.min(2048 - 80, x));
+	}
+};
+game.move = function (x, y, obj) {
+	if (dragging) {
+		miner.x = Math.max(80, Math.min(2048 - 80, x));
+	}
+};
+game.up = function (x, y, obj) {
+	dragging = false;
+};
+// Update function: spawn, move, check collisions
+game.update = function () {
+	// Spawn gold
+	if (LK.ticks - lastGoldSpawn > goldSpawnInterval) {
+		var g = new Gold();
+		g.x = 120 + Math.random() * (2048 - 240);
+		g.y = -80;
+		g.lastY = g.y;
+		golds.push(g);
+		game.addChild(g);
+		lastGoldSpawn = LK.ticks;
+	}
+	// Spawn rocks
+	if (LK.ticks - lastRockSpawn > rockSpawnInterval) {
+		var r = new Rock();
+		r.x = 120 + Math.random() * (2048 - 240);
+		r.y = -80;
+		r.lastY = r.y;
+		rocks.push(r);
+		game.addChild(r);
+		lastRockSpawn = LK.ticks;
+	}
+	// Update golds
+	for (var i = golds.length - 1; i >= 0; i--) {
+		var g = golds[i];
+		g.update();
+		// Check if caught by miner
+		if (!g.caught && g.lastY < miner.y - 40 && g.y >= miner.y - 40 && Math.abs(g.x - miner.x) < 120) {
+			g.caught = true;
+			score += 1;
+			scoreTxt.setText(score);
+			g.destroy();
+			golds.splice(i, 1);
+			continue;
+		}
+		// Missed gold (falls below screen)
+		if (g.y > 2732 + 80) {
+			g.destroy();
+			golds.splice(i, 1);
+			lives -= 1;
+			updateLives();
+			if (lives <= 0) {
+				LK.showGameOver();
+				return;
+			}
+		}
+	}
+	// Update rocks
+	for (var j = rocks.length - 1; j >= 0; j--) {
+		var r = rocks[j];
+		r.update();
+		// Hit by miner
+		if (!r.hit && r.lastY < miner.y - 40 && r.y >= miner.y - 40 && Math.abs(r.x - miner.x) < 120) {
+			r.hit = true;
+			lives -= 1;
+			updateLives();
+			r.destroy();
+			rocks.splice(j, 1);
+			if (lives <= 0) {
+				LK.showGameOver();
+				return;
+			}
+			continue;
+		}
+		// Remove rock if off screen
+		if (r.y > 2732 + 80) {
+			r.destroy();
+			rocks.splice(j, 1);
+		}
+	}
+};
+// Update lives display
+function updateLives() {
+	var s = '';
+	for (var i = 0; i < lives; i++) s += '❤';
+	livesTxt.setText(s);
+}
\ No newline at end of file