===================================================================
--- original.js
+++ change.js
@@ -1,6 +1,227 @@
-/****
+/**** 
+* Plugins
+****/ 
+var tween = LK.import("@upit/tween.v1");
+
+/**** 
+* Classes
+****/ 
+// Obstacle class
+var Obstacle = Container.expand(function () {
+	var self = Container.call(this);
+	var obsSprite = self.attachAsset('obstacle', {
+		anchorX: 0.5,
+		anchorY: 1
+	});
+	self.width = obsSprite.width;
+	self.height = obsSprite.height;
+	// Update method
+	self.update = function () {
+		self.x -= gameSpeed;
+	};
+	return self;
+});
+// Player class
+var Player = Container.expand(function () {
+	var self = Container.call(this);
+	var playerSprite = self.attachAsset('player', {
+		anchorX: 0.5,
+		anchorY: 1
+	});
+	self.width = playerSprite.width;
+	self.height = playerSprite.height;
+	// Physics
+	self.vy = 0;
+	self.isOnGround = false;
+	// Jump method
+	self.jump = function () {
+		if (self.isOnGround) {
+			self.vy = -48; // Jump velocity
+			self.isOnGround = false;
+		}
+	};
+	// Update method
+	self.update = function () {
+		// Gravity
+		self.vy += 4; // Gravity acceleration
+		self.y += self.vy;
+		// Prevent falling below ground
+		if (self.y > groundY) {
+			self.y = groundY;
+			self.vy = 0;
+			self.isOnGround = true;
+		}
+	};
+	return self;
+});
+// Point token class
+var PointToken = Container.expand(function () {
+	var self = Container.call(this);
+	var pointSprite = self.attachAsset('point', {
+		anchorX: 0.5,
+		anchorY: 0.5
+	});
+	self.width = pointSprite.width;
+	self.height = pointSprite.height;
+	// Update method
+	self.update = function () {
+		self.x -= gameSpeed;
+	};
+	return self;
+});
+
+/**** 
 * Initialize Game
-****/
+****/ 
 var game = new LK.Game({
-	backgroundColor: 0x000000
-});
\ No newline at end of file
+	backgroundColor: 0x87ceeb // Sky blue
+});
+
+/**** 
+* Game Code
+****/ 
+// Point token: yellow ellipse
+// Obstacle: dark gray box
+// Ground: green box
+// Player character: red box
+// Constants
+var groundHeight = 120;
+var groundY = 2732 - groundHeight;
+var playerStartX = 400;
+var playerStartY = groundY;
+var gameSpeed = 24; // pixels per frame
+var obstacleMinGap = 600;
+var obstacleMaxGap = 1100;
+var obstacleMinY = groundY - 160;
+var obstacleMaxY = groundY;
+var pointMinGap = 400;
+var pointMaxGap = 900;
+// Game state
+var player;
+var ground;
+var obstacles = [];
+var points = [];
+var score = 0;
+var scoreTxt;
+var nextObstacleX = 1200;
+var nextPointX = 900;
+var isGameOver = false;
+// Add ground
+ground = LK.getAsset('ground', {
+	anchorX: 0,
+	anchorY: 0
+});
+ground.x = 0;
+ground.y = groundY;
+game.addChild(ground);
+// Add player
+player = new Player();
+player.x = playerStartX;
+player.y = playerStartY;
+game.addChild(player);
+// Score text
+scoreTxt = new Text2('0', {
+	size: 120,
+	fill: 0xFFFFFF
+});
+scoreTxt.anchor.set(0.5, 0);
+LK.gui.top.addChild(scoreTxt);
+// Helper: spawn obstacle
+function spawnObstacle(x) {
+	var obs = new Obstacle();
+	obs.x = x;
+	obs.y = groundY;
+	obstacles.push(obs);
+	game.addChild(obs);
+}
+// Helper: spawn point token
+function spawnPoint(x) {
+	var pt = new PointToken();
+	pt.x = x;
+	pt.y = groundY - 200 - Math.floor(Math.random() * 200); // Random height above ground
+	points.push(pt);
+	game.addChild(pt);
+}
+// Initial obstacles and points
+spawnObstacle(1200);
+spawnPoint(900);
+// Touch/tap to jump
+game.down = function (x, y, obj) {
+	if (!isGameOver) {
+		player.jump();
+	}
+};
+// Main update loop
+game.update = function () {
+	if (isGameOver) return;
+	// Update player
+	player.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 < -obs.width) {
+			obs.destroy();
+			obstacles.splice(i, 1);
+			continue;
+		}
+		// Collision with player
+		if (player.intersects(obs)) {
+			// Flash screen red and show game over
+			LK.effects.flashScreen(0xff0000, 800);
+			isGameOver = true;
+			LK.setTimeout(function () {
+				LK.showGameOver();
+			}, 800);
+			return;
+		}
+	}
+	// Update points
+	for (var j = points.length - 1; j >= 0; j--) {
+		var pt = points[j];
+		pt.update();
+		// Remove if off screen
+		if (pt.x < -pt.width) {
+			pt.destroy();
+			points.splice(j, 1);
+			continue;
+		}
+		// Collect point
+		if (player.intersects(pt)) {
+			score += 1;
+			LK.setScore(score);
+			scoreTxt.setText(score);
+			// Animate point collection
+			tween(pt, {
+				scaleX: 1.8,
+				scaleY: 1.8,
+				alpha: 0
+			}, {
+				duration: 200,
+				easing: tween.easeOut,
+				onFinish: function onFinish() {
+					pt.destroy();
+				}
+			});
+			points.splice(j, 1);
+			continue;
+		}
+	}
+	// Spawn new obstacles
+	if (obstacles.length === 0 || obstacles[obstacles.length - 1].x < 2048 - obstacleMinGap) {
+		var gap = obstacleMinGap + Math.floor(Math.random() * (obstacleMaxGap - obstacleMinGap));
+		var newX = (obstacles.length > 0 ? obstacles[obstacles.length - 1].x : 1200) + gap;
+		spawnObstacle(newX);
+	}
+	// Spawn new points
+	if (points.length === 0 || points[points.length - 1].x < 2048 - pointMinGap) {
+		var gapP = pointMinGap + Math.floor(Math.random() * (pointMaxGap - pointMinGap));
+		var newXP = (points.length > 0 ? points[points.length - 1].x : 900) + gapP;
+		spawnPoint(newXP);
+	}
+};
+// Reset score on game start
+LK.setScore(0);
+score = 0;
+scoreTxt.setText(score);
\ No newline at end of file