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

/**** 
* Classes
****/ 
var Hazard = Container.expand(function () {
	var self = Container.call(this);
	var graphics = self.attachAsset('hazard', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.pulseTimer = 0;
	self.update = function () {
		self.pulseTimer += 0.1;
		graphics.scaleX = 1 + Math.sin(self.pulseTimer) * 0.2;
		graphics.scaleY = 1 + Math.sin(self.pulseTimer) * 0.2;
	};
	return self;
});
var Player = Container.expand(function () {
	var self = Container.call(this);
	var graphics = self.attachAsset('microceratus', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.speed = 3;
	self.size = 1;
	self.species = 'microceratus';
	self.dragActive = false;
	self.evolve = function (newSpecies, newSize, newSpeed) {
		// Remove old graphics
		self.removeChild(graphics);
		// Create new graphics based on species
		var assetId = self.getAssetIdForSpecies(newSpecies);
		graphics = self.attachAsset(assetId, {
			anchorX: 0.5,
			anchorY: 0.5
		});
		self.species = newSpecies;
		self.size = newSize;
		self.speed = newSpeed;
		graphics.scaleX = newSize;
		graphics.scaleY = newSize;
	};
	self.getAssetIdForSpecies = function (speciesName) {
		var speciesMap = {
			'T-Rex': 'trex',
			'Velociraptor': 'velociraptor',
			'Allosaurus': 'allosaurus',
			'Spinosaurus': 'spinosaurus',
			'Carnotaurus': 'carnotaurus',
			'Dilophosaurus': 'dilophosaurus',
			'Giganotosaurus': 'giganotosaurus',
			'Utahraptor': 'utahraptor',
			'Triceratops': 'triceratops',
			'Brachiosaurus': 'brachiosaurus',
			'Stegosaurus': 'stegosaurus',
			'Ankylosaurus': 'ankylosaurus',
			'Parasaurolophus': 'parasaurolophus',
			'Diplodocus': 'diplodocus',
			'Iguanodon': 'iguanodon',
			'Apatosaurus': 'apatosaurus',
			'Oviraptor': 'oviraptor',
			'Ornithomimus': 'ornithomimus',
			'Therizinosaurus': 'therizinosaurus',
			'Deinonychus': 'deinonychus'
		};
		return speciesMap[speciesName] || 'microceratus';
	};
	return self;
});
var Predator = Container.expand(function (type) {
	var self = Container.call(this);
	var assetName = 'predator' + (type || 1);
	var graphics = self.attachAsset(assetName, {
		anchorX: 0.5,
		anchorY: 0.5
	});
	// Add subtle animation to make predators more lifelike
	graphics.baseScaleX = graphics.scaleX;
	graphics.baseScaleY = graphics.scaleY;
	self.animationTimer = Math.random() * 100;
	self.speed = Math.random() * 2 + 1;
	self.direction = Math.random() * Math.PI * 2;
	self.changeDirectionTimer = 0;
	self.update = function () {
		// Add breathing animation
		self.animationTimer += 0.05;
		graphics.scaleX = graphics.baseScaleX + Math.sin(self.animationTimer) * 0.05;
		graphics.scaleY = graphics.baseScaleY + Math.cos(self.animationTimer * 0.8) * 0.03;
		self.changeDirectionTimer--;
		if (self.changeDirectionTimer <= 0) {
			self.direction = Math.random() * Math.PI * 2;
			self.changeDirectionTimer = 60 + Math.random() * 120;
		}
		self.x += Math.cos(self.direction) * self.speed;
		self.y += Math.sin(self.direction) * self.speed;
		// Bounce off edges
		if (self.x < 100 || self.x > 1948) {
			self.direction = Math.PI - self.direction;
		}
		if (self.y < 100 || self.y > 2632) {
			self.direction = -self.direction;
		}
		// Keep in bounds
		self.x = Math.max(100, Math.min(1948, self.x));
		self.y = Math.max(100, Math.min(2632, self.y));
	};
	return self;
});
var Tree = Container.expand(function (treeType) {
	var self = Container.call(this);
	var treeAsset = 'tree' + (treeType || 1);
	var graphics = self.attachAsset(treeAsset, {
		anchorX: 0.5,
		anchorY: 1.0
	});
	// Random scale variation
	var scale = 0.8 + Math.random() * 0.4;
	graphics.scaleX = scale;
	graphics.scaleY = scale;
	// Subtle swaying animation
	self.swayTimer = Math.random() * 100;
	self.swaySpeed = 0.02 + Math.random() * 0.01;
	self.swayAmount = 0.02 + Math.random() * 0.02;
	self.update = function () {
		self.swayTimer += self.swaySpeed;
		graphics.rotation = Math.sin(self.swayTimer) * self.swayAmount;
	};
	return self;
});

/**** 
* Initialize Game
****/ 
var game = new LK.Game({
	backgroundColor: 0x228B22
});

/**** 
* Game Code
****/ 
// Game variables
var player;
var predators = [];
var hazards = [];
var trees = [];
var coins = storage.coins || 0;
var survivalTime = 0;
var lastCoinTime = 0;
var gameRunning = false;
var menuOpen = false;
var mainMenuOpen = true;
// Dinosaur data
var dinosaurData = {
	carnivores: [{
		name: 'T-Rex',
		cost: 100,
		size: 2.5,
		speed: 4
	}, {
		name: 'Velociraptor',
		cost: 50,
		size: 1.3,
		speed: 6
	}, {
		name: 'Allosaurus',
		cost: 80,
		size: 2.2,
		speed: 3.5
	}, {
		name: 'Spinosaurus',
		cost: 120,
		size: 2.8,
		speed: 3
	}, {
		name: 'Carnotaurus',
		cost: 70,
		size: 2.0,
		speed: 5
	}, {
		name: 'Dilophosaurus',
		cost: 40,
		size: 1.5,
		speed: 4.5
	}, {
		name: 'Giganotosaurus',
		cost: 150,
		size: 3.0,
		speed: 2.5
	}, {
		name: 'Utahraptor',
		cost: 60,
		size: 1.8,
		speed: 5.5
	}],
	herbivores: [{
		name: 'Triceratops',
		cost: 30,
		size: 1.8,
		speed: 2.5
	}, {
		name: 'Brachiosaurus',
		cost: 90,
		size: 3.5,
		speed: 1.5
	}, {
		name: 'Stegosaurus',
		cost: 45,
		size: 2.0,
		speed: 2
	}, {
		name: 'Ankylosaurus',
		cost: 55,
		size: 1.7,
		speed: 1.8
	}, {
		name: 'Parasaurolophus',
		cost: 35,
		size: 1.6,
		speed: 3.5
	}, {
		name: 'Diplodocus',
		cost: 75,
		size: 3.0,
		speed: 2
	}, {
		name: 'Iguanodon',
		cost: 40,
		size: 1.9,
		speed: 3
	}, {
		name: 'Apatosaurus',
		cost: 85,
		size: 3.2,
		speed: 1.8
	}],
	omnivores: [{
		name: 'Oviraptor',
		cost: 25,
		size: 1.2,
		speed: 4
	}, {
		name: 'Ornithomimus',
		cost: 35,
		size: 1.4,
		speed: 5
	}, {
		name: 'Therizinosaurus',
		cost: 65,
		size: 2.3,
		speed: 2.8
	}, {
		name: 'Deinonychus',
		cost: 45,
		size: 1.6,
		speed: 4.8
	}]
};
var unlockedDinosaurs = storage.unlockedDinosaurs || ['microceratus'];
// UI Elements
var coinsText = new Text2('Coins: 0', {
	size: 50,
	fill: '#FFD700'
});
coinsText.anchor.set(1, 0);
LK.gui.topRight.addChild(coinsText);
var timeText = new Text2('Time: 0s', {
	size: 40,
	fill: '#FFFFFF'
});
timeText.anchor.set(0.5, 0);
LK.gui.top.addChild(timeText);
var menuButton = LK.getAsset('menuButton', {
	anchorX: 0.5,
	anchorY: 0.5,
	x: 1900,
	y: 150
});
game.addChild(menuButton);
var menuButtonText = new Text2('MENU', {
	size: 30,
	fill: '#FFFFFF'
});
menuButtonText.anchor.set(0.5, 0.5);
menuButtonText.x = 1900;
menuButtonText.y = 150;
game.addChild(menuButtonText);
// Menu system
var menuContainer;
var menuBackground;
function createEvolutionMenu() {
	menuContainer = new Container();
	menuBackground = LK.getAsset('menuButton', {
		anchorX: 0.5,
		anchorY: 0.5,
		scaleX: 8,
		scaleY: 12,
		x: 1024,
		y: 1366
	});
	menuContainer.addChild(menuBackground);
	var titleText = new Text2('EVOLUTION MENU', {
		size: 50,
		fill: '#FFFFFF'
	});
	titleText.anchor.set(0.5, 0.5);
	titleText.x = 1024;
	titleText.y = 800;
	menuContainer.addChild(titleText);
	var menuCoinsText = new Text2('Coins: ' + coins, {
		size: 45,
		fill: '#FFD700'
	});
	menuCoinsText.anchor.set(0.5, 0.5);
	menuCoinsText.x = 1024;
	menuCoinsText.y = 860;
	menuContainer.addChild(menuCoinsText);
	// Create close button (X)
	var closeButton = new Text2('✕', {
		size: 60,
		fill: '#FF6666'
	});
	closeButton.anchor.set(0.5, 0.5);
	closeButton.x = 1400;
	closeButton.y = 800;
	closeButton.isCloseButton = true;
	menuContainer.addChild(closeButton);
	var closeText = new Text2('TAP ANYWHERE TO CLOSE', {
		size: 30,
		fill: '#CCCCCC'
	});
	closeText.anchor.set(0.5, 0.5);
	closeText.x = 1024;
	closeText.y = 1900;
	menuContainer.addChild(closeText);
	var yPos = 950;
	var categories = ['herbivores', 'carnivores', 'omnivores'];
	categories.forEach(function (category) {
		var categoryText = new Text2(category.toUpperCase(), {
			size: 35,
			fill: '#90EE90'
		});
		categoryText.anchor.set(0.5, 0.5);
		categoryText.x = 1024;
		categoryText.y = yPos;
		menuContainer.addChild(categoryText);
		yPos += 60;
		dinosaurData[category].forEach(function (dino, index) {
			// Create dinosaur icon
			var dinoIcon = LK.getAsset(player.getAssetIdForSpecies(dino.name), {
				anchorX: 0.5,
				anchorY: 0.5,
				scaleX: 0.8,
				scaleY: 0.8,
				x: 924,
				y: yPos
			});
			dinoIcon.dinoData = dino;
			dinoIcon.category = category;
			menuContainer.addChild(dinoIcon);
			if (unlockedDinosaurs.indexOf(dino.name) !== -1) {
				var dinoText = new Text2(dino.name + ' (OWNED)', {
					size: 35,
					fill: '#00FF00'
				});
				// Make icon fully opaque for owned dinosaurs
				dinoIcon.alpha = 1.0;
			} else if (coins >= dino.cost) {
				var dinoText = new Text2(dino.name + ' - ' + dino.cost + ' coins', {
					size: 35,
					fill: '#FFFFFF'
				});
				// Make icon slightly transparent for affordable dinosaurs
				dinoIcon.alpha = 0.7;
			} else {
				var dinoText = new Text2(dino.name + ' - ' + dino.cost + ' coins (LOCKED)', {
					size: 35,
					fill: '#888888'
				});
				// Make icon very transparent for locked dinosaurs
				dinoIcon.alpha = 0.3;
			}
			dinoText.anchor.set(0.5, 0.5);
			dinoText.x = 1124;
			dinoText.y = yPos;
			dinoText.dinoData = dino;
			dinoText.category = category;
			menuContainer.addChild(dinoText);
			yPos += 50;
		});
		yPos += 40;
	});
	game.addChild(menuContainer);
}
function closeEvolutionMenu() {
	if (menuContainer) {
		game.removeChild(menuContainer);
		menuContainer = null;
	}
	menuOpen = false;
	gameRunning = true;
}
var mainMenuContainer;
function createMainMenu() {
	mainMenuContainer = new Container();
	var menuBg = LK.getAsset('mainMenuBg', {
		anchorX: 0.5,
		anchorY: 0.5,
		x: 1024,
		y: 1366
	});
	mainMenuContainer.addChild(menuBg);
	var titleText = new Text2('DINOSAUR SURVIVAL', {
		size: 80,
		fill: '#FFFFFF'
	});
	titleText.anchor.set(0.5, 0.5);
	titleText.x = 1024;
	titleText.y = 1000;
	mainMenuContainer.addChild(titleText);
	var startButton = LK.getAsset('mainMenuButton', {
		anchorX: 0.5,
		anchorY: 0.5,
		x: 1024,
		y: 1250
	});
	startButton.isStartButton = true;
	mainMenuContainer.addChild(startButton);
	var startButtonText = new Text2('START GAME', {
		size: 50,
		fill: '#FFFFFF'
	});
	startButtonText.anchor.set(0.5, 0.5);
	startButtonText.x = 1024;
	startButtonText.y = 1250;
	startButtonText.isStartButton = true;
	mainMenuContainer.addChild(startButtonText);
	var evolutionButton = LK.getAsset('mainMenuButton', {
		anchorX: 0.5,
		anchorY: 0.5,
		x: 1024,
		y: 1380
	});
	evolutionButton.isEvolutionButton = true;
	mainMenuContainer.addChild(evolutionButton);
	var evolutionButtonText = new Text2('EVOLUTION', {
		size: 50,
		fill: '#FFFFFF'
	});
	evolutionButtonText.anchor.set(0.5, 0.5);
	evolutionButtonText.x = 1024;
	evolutionButtonText.y = 1380;
	evolutionButtonText.isEvolutionButton = true;
	mainMenuContainer.addChild(evolutionButtonText);
	var coinsDisplay = new Text2('Coins: ' + coins, {
		size: 45,
		fill: '#FFD700'
	});
	coinsDisplay.anchor.set(0.5, 0.5);
	coinsDisplay.x = 1024;
	coinsDisplay.y = 1500;
	mainMenuContainer.addChild(coinsDisplay);
	game.addChild(mainMenuContainer);
}
function closeMainMenu() {
	if (mainMenuContainer) {
		game.removeChild(mainMenuContainer);
		mainMenuContainer = null;
	}
	mainMenuOpen = false;
	gameRunning = true;
}
function showMainMenu() {
	gameRunning = false;
	menuOpen = false;
	mainMenuOpen = true;
	closeEvolutionMenu();
	createMainMenu();
}
// Initialize player
player = new Player();
player.x = 1024;
player.y = 1366;
game.addChild(player);
// Create main menu at game start
createMainMenu();
// Spawn predators
for (var i = 0; i < 4; i++) {
	var predator = new Predator(Math.floor(Math.random() * 3) + 1);
	predator.x = Math.random() * 1848 + 100;
	predator.y = Math.random() * 2532 + 100;
	predators.push(predator);
	game.addChild(predator);
}
// Spawn hazards
for (var i = 0; i < 6; i++) {
	var hazard = new Hazard();
	hazard.x = Math.random() * 1848 + 100;
	hazard.y = Math.random() * 2532 + 100;
	hazards.push(hazard);
	game.addChild(hazard);
}
// Spawn background trees
for (var i = 0; i < 15; i++) {
	var tree = new Tree(Math.floor(Math.random() * 3) + 1);
	tree.x = Math.random() * 1900 + 74;
	tree.y = Math.random() * 2500 + 232;
	trees.push(tree);
	game.addChild(tree);
	// Send trees to back so they appear behind other objects
	game.setChildIndex(tree, 0);
}
function updateCoinsDisplay() {
	coinsText.setText('Coins: ' + coins);
}
function updateTimeDisplay() {
	var seconds = Math.floor(survivalTime / 60);
	timeText.setText('Time: ' + seconds + 's');
}
updateCoinsDisplay();
// Touch handling for dragging
var isDragging = false;
game.down = function (x, y, obj) {
	if (mainMenuOpen) {
		// Check main menu interactions
		var localPos = mainMenuContainer.toLocal({
			x: x,
			y: y
		});
		// Check for start button click
		for (var i = mainMenuContainer.children.length - 1; i >= 0; i--) {
			var child = mainMenuContainer.children[i];
			if (child.isStartButton) {
				if (localPos.x >= child.x - 200 && localPos.x <= child.x + 200 && localPos.y >= child.y - 40 && localPos.y <= child.y + 40) {
					closeMainMenu();
					return;
				}
			}
			if (child.isEvolutionButton) {
				if (localPos.x >= child.x - 200 && localPos.x <= child.x + 200 && localPos.y >= child.y - 40 && localPos.y <= child.y + 40) {
					mainMenuOpen = false;
					menuOpen = true;
					game.removeChild(mainMenuContainer);
					mainMenuContainer = null;
					createEvolutionMenu();
					return;
				}
			}
		}
		return;
	}
	if (menuOpen) {
		// Check if clicking on a dinosaur in menu
		var localPos = menuContainer.toLocal({
			x: x,
			y: y
		});
		var clickedChild = null;
		var isCloseButtonClick = false;
		// First check for close button click
		for (var i = menuContainer.children.length - 1; i >= 0; i--) {
			var child = menuContainer.children[i];
			if (child.isCloseButton) {
				// Check for close button click (hit area around X button)
				if (localPos.x >= child.x - 30 && localPos.x <= child.x + 30 && localPos.y >= child.y - 30 && localPos.y <= child.y + 30) {
					isCloseButtonClick = true;
					break;
				}
			}
		}
		// If close button was clicked, close menu and return
		if (isCloseButtonClick) {
			closeEvolutionMenu();
			showMainMenu();
			return;
		}
		// Then check for dinosaur clicks
		for (var i = menuContainer.children.length - 1; i >= 0; i--) {
			var child = menuContainer.children[i];
			if (child.dinoData) {
				// Check for icon clicks (smaller hit area around icon)
				if (localPos.x > child.x - 60 && localPos.x < child.x + 60 && localPos.y > child.y - 40 && localPos.y < child.y + 40) {
					clickedChild = child;
					break;
				}
				// Check for text clicks (wider hit area for text)
				if (localPos.x > child.x - 400 && localPos.x < child.x + 400 && localPos.y > child.y - 30 && localPos.y < child.y + 30) {
					clickedChild = child;
					break;
				}
			}
		}
		if (clickedChild && clickedChild.dinoData) {
			var dino = clickedChild.dinoData;
			// If dinosaur is already owned, just transform into it
			if (unlockedDinosaurs.indexOf(dino.name) !== -1) {
				player.evolve(dino.name, dino.size, dino.speed);
				LK.getSound('collect').play();
				closeEvolutionMenu();
			} else if (coins >= dino.cost) {
				// Purchase the dinosaur if not owned and can afford it
				coins -= dino.cost;
				unlockedDinosaurs.push(dino.name);
				storage.coins = coins;
				storage.unlockedDinosaurs = unlockedDinosaurs;
				// Transform into the newly purchased dinosaur
				player.evolve(dino.name, dino.size, dino.speed);
				updateCoinsDisplay();
				LK.getSound('collect').play();
				closeEvolutionMenu();
			}
			return;
		}
		// If clicked somewhere else in menu but not on close button or dinosaur, do nothing
		return;
	}
	// Check menu button
	var buttonBounds = {
		left: menuButton.x - 100,
		right: menuButton.x + 100,
		top: menuButton.y - 30,
		bottom: menuButton.y + 30
	};
	if (x >= buttonBounds.left && x <= buttonBounds.right && y >= buttonBounds.top && y <= buttonBounds.bottom) {
		showMainMenu();
		return;
	}
	isDragging = true;
	player.dragActive = true;
};
game.move = function (x, y, obj) {
	if (isDragging && !menuOpen && player.dragActive) {
		player.x = Math.max(50, Math.min(1998, x));
		player.y = Math.max(50, Math.min(2682, y));
	}
};
game.up = function (x, y, obj) {
	isDragging = false;
	player.dragActive = false;
};
game.update = function () {
	if (!gameRunning || mainMenuOpen) return;
	survivalTime++;
	updateTimeDisplay();
	// Coin generation every 5 seconds
	if (survivalTime - lastCoinTime >= 300) {
		// 60 FPS * 5 seconds
		coins += Math.floor(player.size);
		lastCoinTime = survivalTime;
		storage.coins = coins;
		updateCoinsDisplay();
		LK.getSound('collect').play();
	}
	// Check collisions with predators
	for (var i = 0; i < predators.length; i++) {
		var predator = predators[i];
		if (player.intersects(predator)) {
			if (player.size < 2.0) {
				// Small dinosaurs die to predators
				LK.effects.flashScreen(0xFF0000, 1000);
				LK.getSound('danger').play();
				LK.showGameOver();
				return;
			}
		}
	}
	// Check collisions with hazards
	for (var i = 0; i < hazards.length; i++) {
		var hazard = hazards[i];
		if (player.intersects(hazard)) {
			LK.effects.flashScreen(0xFF0000, 500);
			LK.getSound('danger').play();
			LK.showGameOver();
			return;
		}
	}
	// Check win condition (all dinosaurs unlocked)
	var totalDinosaurs = dinosaurData.carnivores.length + dinosaurData.herbivores.length + dinosaurData.omnivores.length + 1;
	if (unlockedDinosaurs.length >= totalDinosaurs) {
		LK.showYouWin();
		return;
	}
};

===================================================================
--- original.js
+++ change.js
@@ -151,10 +151,11 @@
 var trees = [];
 var coins = storage.coins || 0;
 var survivalTime = 0;
 var lastCoinTime = 0;
-var gameRunning = true;
+var gameRunning = false;
 var menuOpen = false;
+var mainMenuOpen = true;
 // Dinosaur data
 var dinosaurData = {
 	carnivores: [{
 		name: 'T-Rex',
@@ -280,9 +281,9 @@
 	x: 1900,
 	y: 150
 });
 game.addChild(menuButton);
-var menuButtonText = new Text2('EVOLVE', {
+var menuButtonText = new Text2('MENU', {
 	size: 30,
 	fill: '#FFFFFF'
 });
 menuButtonText.anchor.set(0.5, 0.5);
@@ -403,13 +404,92 @@
 	}
 	menuOpen = false;
 	gameRunning = true;
 }
+var mainMenuContainer;
+function createMainMenu() {
+	mainMenuContainer = new Container();
+	var menuBg = LK.getAsset('mainMenuBg', {
+		anchorX: 0.5,
+		anchorY: 0.5,
+		x: 1024,
+		y: 1366
+	});
+	mainMenuContainer.addChild(menuBg);
+	var titleText = new Text2('DINOSAUR SURVIVAL', {
+		size: 80,
+		fill: '#FFFFFF'
+	});
+	titleText.anchor.set(0.5, 0.5);
+	titleText.x = 1024;
+	titleText.y = 1000;
+	mainMenuContainer.addChild(titleText);
+	var startButton = LK.getAsset('mainMenuButton', {
+		anchorX: 0.5,
+		anchorY: 0.5,
+		x: 1024,
+		y: 1250
+	});
+	startButton.isStartButton = true;
+	mainMenuContainer.addChild(startButton);
+	var startButtonText = new Text2('START GAME', {
+		size: 50,
+		fill: '#FFFFFF'
+	});
+	startButtonText.anchor.set(0.5, 0.5);
+	startButtonText.x = 1024;
+	startButtonText.y = 1250;
+	startButtonText.isStartButton = true;
+	mainMenuContainer.addChild(startButtonText);
+	var evolutionButton = LK.getAsset('mainMenuButton', {
+		anchorX: 0.5,
+		anchorY: 0.5,
+		x: 1024,
+		y: 1380
+	});
+	evolutionButton.isEvolutionButton = true;
+	mainMenuContainer.addChild(evolutionButton);
+	var evolutionButtonText = new Text2('EVOLUTION', {
+		size: 50,
+		fill: '#FFFFFF'
+	});
+	evolutionButtonText.anchor.set(0.5, 0.5);
+	evolutionButtonText.x = 1024;
+	evolutionButtonText.y = 1380;
+	evolutionButtonText.isEvolutionButton = true;
+	mainMenuContainer.addChild(evolutionButtonText);
+	var coinsDisplay = new Text2('Coins: ' + coins, {
+		size: 45,
+		fill: '#FFD700'
+	});
+	coinsDisplay.anchor.set(0.5, 0.5);
+	coinsDisplay.x = 1024;
+	coinsDisplay.y = 1500;
+	mainMenuContainer.addChild(coinsDisplay);
+	game.addChild(mainMenuContainer);
+}
+function closeMainMenu() {
+	if (mainMenuContainer) {
+		game.removeChild(mainMenuContainer);
+		mainMenuContainer = null;
+	}
+	mainMenuOpen = false;
+	gameRunning = true;
+}
+function showMainMenu() {
+	gameRunning = false;
+	menuOpen = false;
+	mainMenuOpen = true;
+	closeEvolutionMenu();
+	createMainMenu();
+}
 // Initialize player
 player = new Player();
 player.x = 1024;
 player.y = 1366;
 game.addChild(player);
+// Create main menu at game start
+createMainMenu();
 // Spawn predators
 for (var i = 0; i < 4; i++) {
 	var predator = new Predator(Math.floor(Math.random() * 3) + 1);
 	predator.x = Math.random() * 1848 + 100;
@@ -445,8 +525,36 @@
 updateCoinsDisplay();
 // Touch handling for dragging
 var isDragging = false;
 game.down = function (x, y, obj) {
+	if (mainMenuOpen) {
+		// Check main menu interactions
+		var localPos = mainMenuContainer.toLocal({
+			x: x,
+			y: y
+		});
+		// Check for start button click
+		for (var i = mainMenuContainer.children.length - 1; i >= 0; i--) {
+			var child = mainMenuContainer.children[i];
+			if (child.isStartButton) {
+				if (localPos.x >= child.x - 200 && localPos.x <= child.x + 200 && localPos.y >= child.y - 40 && localPos.y <= child.y + 40) {
+					closeMainMenu();
+					return;
+				}
+			}
+			if (child.isEvolutionButton) {
+				if (localPos.x >= child.x - 200 && localPos.x <= child.x + 200 && localPos.y >= child.y - 40 && localPos.y <= child.y + 40) {
+					mainMenuOpen = false;
+					menuOpen = true;
+					game.removeChild(mainMenuContainer);
+					mainMenuContainer = null;
+					createEvolutionMenu();
+					return;
+				}
+			}
+		}
+		return;
+	}
 	if (menuOpen) {
 		// Check if clicking on a dinosaur in menu
 		var localPos = menuContainer.toLocal({
 			x: x,
@@ -467,8 +575,9 @@
 		}
 		// If close button was clicked, close menu and return
 		if (isCloseButtonClick) {
 			closeEvolutionMenu();
+			showMainMenu();
 			return;
 		}
 		// Then check for dinosaur clicks
 		for (var i = menuContainer.children.length - 1; i >= 0; i--) {
@@ -517,11 +626,9 @@
 		top: menuButton.y - 30,
 		bottom: menuButton.y + 30
 	};
 	if (x >= buttonBounds.left && x <= buttonBounds.right && y >= buttonBounds.top && y <= buttonBounds.bottom) {
-		menuOpen = true;
-		gameRunning = false;
-		createEvolutionMenu();
+		showMainMenu();
 		return;
 	}
 	isDragging = true;
 	player.dragActive = true;
@@ -536,9 +643,9 @@
 	isDragging = false;
 	player.dragActive = false;
 };
 game.update = function () {
-	if (!gameRunning) return;
+	if (!gameRunning || mainMenuOpen) return;
 	survivalTime++;
 	updateTimeDisplay();
 	// Coin generation every 5 seconds
 	if (survivalTime - lastCoinTime >= 300) {