===================================================================
--- original.js
+++ change.js
@@ -1,6 +1,195 @@
-/****
+/**** 
+* Plugins
+****/ 
+var tween = LK.import("@upit/tween.v1");
+
+/**** 
+* Classes
+****/ 
+var Cactus = Container.expand(function (trackIndex) {
+	var self = Container.call(this);
+	var cactusGraphics = self.attachAsset('cactus', {
+		anchorX: 0.5,
+		anchorY: 1.0
+	});
+	self.trackIndex = trackIndex;
+	self.speed = gameSpeed;
+	self.update = function () {
+		self.x -= self.speed;
+	};
+	return self;
+});
+var Dinosaur = Container.expand(function (trackIndex) {
+	var self = Container.call(this);
+	var dinoGraphics = self.attachAsset('dinosaur', {
+		anchorX: 0.5,
+		anchorY: 1.0
+	});
+	self.trackIndex = trackIndex;
+	self.isJumping = false;
+	self.jumpHeight = 0;
+	self.jumpSpeed = 0;
+	self.groundY = 0;
+	self.jump = function () {
+		if (!self.isJumping) {
+			self.isJumping = true;
+			self.jumpSpeed = -25;
+			LK.getSound('jump').play();
+		}
+	};
+	self.update = function () {
+		if (self.isJumping) {
+			self.jumpSpeed += 1.5; // gravity
+			self.jumpHeight += self.jumpSpeed;
+			if (self.jumpHeight >= 0) {
+				self.jumpHeight = 0;
+				self.isJumping = false;
+				self.jumpSpeed = 0;
+			}
+			self.y = self.groundY + self.jumpHeight;
+		}
+	};
+	return self;
+});
+var TouchZone = Container.expand(function (dinosaurIndex) {
+	var self = Container.call(this);
+	var zoneGraphics = self.attachAsset('touchZone', {
+		anchorX: 0.5,
+		anchorY: 0.5
+	});
+	zoneGraphics.alpha = 0.3;
+	self.dinosaurIndex = dinosaurIndex;
+	self.down = function (x, y, obj) {
+		if (dinosaurs[self.dinosaurIndex]) {
+			dinosaurs[self.dinosaurIndex].jump();
+			// Flash feedback
+			LK.effects.flashObject(self, 0xffffff, 200);
+		}
+	};
+	return self;
+});
+
+/**** 
 * Initialize Game
-****/
+****/ 
 var game = new LK.Game({
-	backgroundColor: 0x000000
-});
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+	backgroundColor: 0x87ceeb
+});
+
+/**** 
+* Game Code
+****/ 
+// Game variables
+var dinosaurs = [];
+var cacti = [];
+var touchZones = [];
+var gameSpeed = 8;
+var spawnTimer = 0;
+var spawnInterval = 90;
+var trackHeight = 220;
+var trackStartY = 400;
+var score = 0;
+var speedIncreaseTimer = 0;
+// Create score display
+var scoreTxt = new Text2('Score: 0', {
+	size: 60,
+	fill: 0xFFFFFF
+});
+scoreTxt.anchor.set(0.5, 0);
+LK.gui.top.addChild(scoreTxt);
+// Create ground tracks
+for (var i = 0; i < 10; i++) {
+	var ground = game.addChild(LK.getAsset('ground', {
+		anchorX: 0,
+		anchorY: 0
+	}));
+	ground.x = 0;
+	ground.y = trackStartY + i * trackHeight;
+}
+// Create dinosaurs
+for (var i = 0; i < 10; i++) {
+	var dino = game.addChild(new Dinosaur(i));
+	dino.x = 200;
+	dino.y = trackStartY + i * trackHeight;
+	dino.groundY = dino.y;
+	dinosaurs.push(dino);
+}
+// Create touch zones (2 columns of 5 zones each)
+var zoneLabels = ['Q', 'W', 'E', 'R', 'U', 'I', 'O', 'P', 'C', 'M'];
+for (var i = 0; i < 10; i++) {
+	var zone = game.addChild(new TouchZone(i));
+	// Position zones in two columns
+	var col = Math.floor(i / 5);
+	var row = i % 5;
+	zone.x = 1600 + col * 220;
+	zone.y = 500 + row * 220;
+	// Add label
+	var label = new Text2(zoneLabels[i], {
+		size: 40,
+		fill: 0xFFFFFF
+	});
+	label.anchor.set(0.5, 0.5);
+	zone.addChild(label);
+	touchZones.push(zone);
+}
+// Spawn cactus on random track
+function spawnCactus() {
+	var randomTrack = Math.floor(Math.random() * 10);
+	var cactus = game.addChild(new Cactus(randomTrack));
+	cactus.x = 2200;
+	cactus.y = trackStartY + randomTrack * trackHeight;
+	cacti.push(cactus);
+}
+// Check collision between dinosaur and cactus
+function checkCollision(dino, cactus) {
+	if (dino.trackIndex !== cactus.trackIndex) return false;
+	var dx = Math.abs(dino.x - cactus.x);
+	var dy = Math.abs(dino.y - cactus.y);
+	return dx < 50 && dy < 60;
+}
+// Game update loop
+game.update = function () {
+	// Update speed over time
+	speedIncreaseTimer++;
+	if (speedIncreaseTimer >= 300) {
+		// Every 5 seconds
+		gameSpeed += 0.5;
+		speedIncreaseTimer = 0;
+	}
+	// Spawn cacti
+	spawnTimer++;
+	if (spawnTimer >= spawnInterval) {
+		spawnCactus();
+		spawnTimer = 0;
+		// Decrease spawn interval slightly over time
+		if (spawnInterval > 30) {
+			spawnInterval -= 1;
+		}
+	}
+	// Update cacti
+	for (var i = cacti.length - 1; i >= 0; i--) {
+		var cactus = cacti[i];
+		cactus.speed = gameSpeed;
+		// Remove off-screen cacti
+		if (cactus.x < -100) {
+			cactus.destroy();
+			cacti.splice(i, 1);
+			score += 10;
+			scoreTxt.setText('Score: ' + score);
+			LK.setScore(score);
+		}
+	}
+	// Check collisions
+	for (var i = 0; i < dinosaurs.length; i++) {
+		var dino = dinosaurs[i];
+		for (var j = 0; j < cacti.length; j++) {
+			var cactus = cacti[j];
+			if (checkCollision(dino, cactus)) {
+				LK.getSound('crash').play();
+				LK.effects.flashScreen(0xff0000, 1000);
+				LK.showGameOver();
+				return;
+			}
+		}
+	}
+};
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