===================================================================
--- original.js
+++ change.js
@@ -1,6 +1,200 @@
-/****
+/**** 
+* Plugins
+****/ 
+var tween = LK.import("@upit/tween.v1");
+
+/**** 
+* Classes
+****/ 
+var Bird = Container.expand(function () {
+	var self = Container.call(this);
+	var birdGraphics = self.attachAsset('bird', {
+		anchorX: 0.5,
+		anchorY: 0.5
+	});
+	self.velocity = 0;
+	self.gravity = 0.8;
+	self.flapStrength = -15;
+	self.lives = 4;
+	self.invulnerable = false;
+	self.invulnerableTime = 0;
+	self.flap = function () {
+		if (self.lives > 0) {
+			self.velocity = self.flapStrength;
+			LK.getSound('flap').play();
+		}
+	};
+	self.update = function () {
+		if (self.lives > 0) {
+			self.velocity += self.gravity;
+			self.y += self.velocity;
+			// Rotate bird based on velocity
+			birdGraphics.rotation = Math.max(-0.5, Math.min(0.5, self.velocity * 0.05));
+			// Handle invulnerability
+			if (self.invulnerable) {
+				self.invulnerableTime--;
+				birdGraphics.alpha = self.invulnerableTime % 10 < 5 ? 0.5 : 1.0;
+				if (self.invulnerableTime <= 0) {
+					self.invulnerable = false;
+					birdGraphics.alpha = 1.0;
+				}
+			}
+			// Keep bird on screen vertically
+			if (self.y < 30) {
+				self.y = 30;
+				self.velocity = 0;
+			}
+			if (self.y > 2732 - 30) {
+				self.y = 2732 - 30;
+				self.velocity = 0;
+			}
+		}
+	};
+	self.takeDamage = function () {
+		if (!self.invulnerable && self.lives > 0) {
+			self.lives--;
+			if (self.lives > 0) {
+				self.invulnerable = true;
+				self.invulnerableTime = 120; // 2 seconds at 60fps
+				LK.effects.flashObject(self, 0xFF0000, 500);
+			}
+			LK.getSound('hit').play();
+			return true;
+		}
+		return false;
+	};
+	return self;
+});
+var Column = Container.expand(function () {
+	var self = Container.call(this);
+	self.gapSize = 300;
+	self.speed = 4;
+	self.scored = false;
+	self.init = function (gapY) {
+		// Top column
+		var topColumn = self.attachAsset('column', {
+			anchorX: 0.5,
+			anchorY: 1.0
+		});
+		topColumn.y = gapY - self.gapSize / 2;
+		// Bottom column
+		var bottomColumn = self.attachAsset('column', {
+			anchorX: 0.5,
+			anchorY: 0.0
+		});
+		bottomColumn.y = gapY + self.gapSize / 2;
+		self.topColumn = topColumn;
+		self.bottomColumn = bottomColumn;
+	};
+	self.update = function () {
+		self.x -= self.speed;
+	};
+	return self;
+});
+
+/**** 
 * Initialize Game
-****/
+****/ 
 var game = new LK.Game({
-	backgroundColor: 0x000000
-});
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+	backgroundColor: 0x87CEEB
+});
+
+/**** 
+* Game Code
+****/ 
+var bird = new Bird();
+bird.x = 400;
+bird.y = 2732 / 2;
+game.addChild(bird);
+var columns = [];
+var columnSpawnTimer = 0;
+var columnSpawnInterval = 90; // 1.5 seconds at 60fps
+var gameSpeed = 4;
+// UI Elements
+var scoreTxt = new Text2('Score: 0', {
+	size: 80,
+	fill: 0xFFFFFF
+});
+scoreTxt.anchor.set(0, 0);
+scoreTxt.x = 120;
+scoreTxt.y = 50;
+LK.gui.topLeft.addChild(scoreTxt);
+var livesTxt = new Text2('Lives: 4', {
+	size: 80,
+	fill: 0xFF0000
+});
+livesTxt.anchor.set(1, 0);
+livesTxt.x = -20;
+livesTxt.y = 50;
+LK.gui.topRight.addChild(livesTxt);
+// Touch controls
+game.down = function (x, y, obj) {
+	bird.flap();
+};
+game.update = function () {
+	if (bird.lives <= 0) {
+		LK.showGameOver();
+		return;
+	}
+	// Spawn columns
+	columnSpawnTimer++;
+	if (columnSpawnTimer >= columnSpawnInterval) {
+		columnSpawnTimer = 0;
+		var newColumn = new Column();
+		var gapY = 400 + Math.random() * (2732 - 800); // Random gap position
+		newColumn.x = 2048 + 60;
+		newColumn.init(gapY);
+		newColumn.speed = gameSpeed;
+		columns.push(newColumn);
+		game.addChild(newColumn);
+	}
+	// Update and check columns
+	for (var i = columns.length - 1; i >= 0; i--) {
+		var column = columns[i];
+		// Remove off-screen columns
+		if (column.x < -100) {
+			column.destroy();
+			columns.splice(i, 1);
+			continue;
+		}
+		// Check for scoring
+		if (!column.scored && column.x < bird.x) {
+			column.scored = true;
+			LK.setScore(LK.getScore() + 1);
+			scoreTxt.setText('Score: ' + LK.getScore());
+			LK.getSound('score').play();
+		}
+		// Collision detection with bird
+		if (!bird.invulnerable && bird.lives > 0) {
+			var birdBounds = {
+				left: bird.x - 30,
+				right: bird.x + 30,
+				top: bird.y - 30,
+				bottom: bird.y + 30
+			};
+			var columnBounds = {
+				left: column.x - 60,
+				right: column.x + 60,
+				topBottom: column.topColumn.y,
+				bottomTop: column.bottomColumn.y
+			};
+			// Check collision with columns
+			if (birdBounds.right > columnBounds.left && birdBounds.left < columnBounds.right) {
+				if (birdBounds.top < columnBounds.topBottom || birdBounds.bottom > columnBounds.bottomTop) {
+					if (bird.takeDamage()) {
+						livesTxt.setText('Lives: ' + bird.lives);
+					}
+				}
+			}
+		}
+	}
+	// Increase difficulty over time
+	if (LK.getScore() > 0 && LK.getScore() % 10 == 0) {
+		if (gameSpeed < 8) {
+			gameSpeed = 4 + LK.getScore() / 10 * 0.5;
+			for (var j = 0; j < columns.length; j++) {
+				columns[j].speed = gameSpeed;
+			}
+		}
+	}
+};
\ No newline at end of file