===================================================================
--- original.js
+++ change.js
@@ -1,6 +1,293 @@
-/****
+/**** 
+* Plugins
+****/ 
+var tween = LK.import("@upit/tween.v1");
+var storage = LK.import("@upit/storage.v1", {
+	cookies: 0,
+	cookiesPerTap: 1,
+	cookiesPerSecond: 0,
+	upgrades: [0, 0, 0]
+});
+
+/**** 
+* Classes
+****/ 
+// Cookie (main clickable)
+var Cookie = Container.expand(function () {
+	var self = Container.call(this);
+	// Shadow
+	var shadow = self.attachAsset('cookieShadow', {
+		anchorX: 0.5,
+		anchorY: 0.5,
+		y: 340,
+		x: 0
+	});
+	// Cookie
+	var cookie = self.attachAsset('cookie', {
+		anchorX: 0.5,
+		anchorY: 0.5,
+		x: 0,
+		y: 0
+	});
+	// Cookie pulse animation on tap
+	self.pulse = function () {
+		tween.stop(cookie, {
+			scaleX: true,
+			scaleY: true
+		});
+		cookie.scaleX = 1;
+		cookie.scaleY = 1;
+		tween(cookie, {
+			scaleX: 1.12,
+			scaleY: 0.92
+		}, {
+			duration: 80,
+			easing: tween.easeOut,
+			onFinish: function onFinish() {
+				tween(cookie, {
+					scaleX: 1,
+					scaleY: 1
+				}, {
+					duration: 120,
+					easing: tween.easeIn
+				});
+			}
+		});
+	};
+	return self;
+});
+// Upgrade Button
+var UpgradeButton = Container.expand(function () {
+	var self = Container.call(this);
+	// Button background
+	var bg = self.attachAsset('upgradeBtn', {
+		anchorX: 0.5,
+		anchorY: 0.5,
+		x: 0,
+		y: 0
+	});
+	// Icon
+	var icon = self.attachAsset('upgradeIcon', {
+		anchorX: 0.5,
+		anchorY: 0.5,
+		x: -120,
+		y: 0
+	});
+	// Title
+	var title = new Text2('', {
+		size: 54,
+		fill: "#fff"
+	});
+	title.anchor.set(0, 0.5);
+	title.x = -60;
+	title.y = 0;
+	self.addChild(title);
+	// Cost
+	var costTxt = new Text2('', {
+		size: 44,
+		fill: 0xFFE7A0
+	});
+	costTxt.anchor.set(1, 0.5);
+	costTxt.x = 180;
+	costTxt.y = 0;
+	self.addChild(costTxt);
+	// Index of upgrade
+	self.upgradeIndex = 0;
+	// Set upgrade info
+	self.setUpgrade = function (upgrade, index) {
+		self.upgradeIndex = index;
+		title.setText(upgrade.name);
+		costTxt.setText(upgrade.cost + "🍪");
+	};
+	// Update cost display
+	self.setCost = function (cost) {
+		costTxt.setText(cost + "🍪");
+	};
+	// Flash when can't afford
+	self.flashRed = function () {
+		tween(bg, {
+			tint: 0xff4444
+		}, {
+			duration: 120,
+			onFinish: function onFinish() {
+				tween(bg, {
+					tint: 0x6c4f2b
+				}, {
+					duration: 200
+				});
+			}
+		});
+	};
+	return self;
+});
+
+/**** 
 * Initialize Game
-****/
+****/ 
 var game = new LK.Game({
-	backgroundColor: 0x000000
-});
\ No newline at end of file
+	backgroundColor: 0x3e2c16
+});
+
+/**** 
+* Game Code
+****/ 
+// Upgrade icon (for all upgrades, can be reused)
+// Upgrade button
+// Cookie shadow
+// Cookie (main clickable)
+// --- Game State ---
+var cookies = storage.cookies || 0;
+var cookiesPerTap = storage.cookiesPerTap || 1;
+var cookiesPerSecond = storage.cookiesPerSecond || 0;
+var upgrades = storage.upgrades || [0, 0, 0];
+// --- Upgrade Definitions ---
+var upgradeDefs = [{
+	name: "Cursor",
+	baseCost: 15,
+	cost: 15,
+	baseCps: 0.1,
+	cps: 0.1,
+	desc: "+0.1 cookies/sec"
+}, {
+	name: "Grandma",
+	baseCost: 100,
+	cost: 100,
+	baseCps: 1,
+	cps: 1,
+	desc: "+1 cookie/sec"
+}, {
+	name: "Oven",
+	baseCost: 500,
+	cost: 500,
+	baseCps: 10,
+	cps: 10,
+	desc: "+10 cookies/sec"
+}];
+// --- UI Elements ---
+// Cookie count text
+var cookieTxt = new Text2('', {
+	size: 120,
+	fill: "#fff"
+});
+cookieTxt.anchor.set(0.5, 0);
+cookieTxt.x = 2048 / 2;
+cookieTxt.y = 120;
+LK.gui.top.addChild(cookieTxt);
+// Cookies per second text
+var cpsTxt = new Text2('', {
+	size: 54,
+	fill: 0xFFE7A0
+});
+cpsTxt.anchor.set(0.5, 0);
+cpsTxt.x = 2048 / 2;
+cpsTxt.y = 260;
+LK.gui.top.addChild(cpsTxt);
+// --- Cookie (main clickable) ---
+var cookie = new Cookie();
+game.addChild(cookie);
+cookie.x = 2048 / 2;
+cookie.y = 1100;
+// --- Upgrades ---
+var upgradeButtons = [];
+for (var i = 0; i < upgradeDefs.length; i++) {
+	var btn = new UpgradeButton();
+	btn.setUpgrade(upgradeDefs[i], i);
+	btn.x = 2048 / 2;
+	btn.y = 1700 + i * 180;
+	game.addChild(btn);
+	upgradeButtons.push(btn);
+}
+// --- Helper Functions ---
+function updateCookieText() {
+	cookieTxt.setText(Math.floor(cookies) + " 🍪");
+}
+function updateCpsText() {
+	cpsTxt.setText("per second: " + cookiesPerSecond.toFixed(1));
+}
+function updateUpgradeButtons() {
+	for (var i = 0; i < upgradeButtons.length; i++) {
+		var def = upgradeDefs[i];
+		var owned = upgrades[i] || 0;
+		var cost = getUpgradeCost(i);
+		upgradeButtons[i].setCost(cost);
+	}
+}
+function getUpgradeCost(index) {
+	// Cost increases by 15% per purchase
+	var def = upgradeDefs[index];
+	var owned = upgrades[index] || 0;
+	return Math.floor(def.baseCost * Math.pow(1.15, owned));
+}
+function getTotalCps() {
+	var total = 0;
+	for (var i = 0; i < upgrades.length; i++) {
+		total += (upgrades[i] || 0) * upgradeDefs[i].cps;
+	}
+	return total;
+}
+function saveGame() {
+	storage.cookies = cookies;
+	storage.cookiesPerTap = cookiesPerTap;
+	storage.cookiesPerSecond = cookiesPerSecond;
+	storage.upgrades = upgrades;
+}
+// --- Cookie Tap Handler ---
+cookie.down = function (x, y, obj) {
+	cookies += cookiesPerTap;
+	updateCookieText();
+	cookie.pulse();
+	saveGame();
+};
+// --- Upgrade Button Handlers ---
+for (var i = 0; i < upgradeButtons.length; i++) {
+	(function (btn, idx) {
+		btn.down = function (x, y, obj) {
+			var cost = getUpgradeCost(idx);
+			if (cookies >= cost) {
+				cookies -= cost;
+				upgrades[idx] = (upgrades[idx] || 0) + 1;
+				cookiesPerSecond = getTotalCps();
+				updateCookieText();
+				updateCpsText();
+				updateUpgradeButtons();
+				saveGame();
+				// Button pulse
+				tween(btn, {
+					scaleX: 1.08,
+					scaleY: 1.08
+				}, {
+					duration: 80,
+					onFinish: function onFinish() {
+						tween(btn, {
+							scaleX: 1,
+							scaleY: 1
+						}, {
+							duration: 120
+						});
+					}
+				});
+			} else {
+				btn.flashRed();
+			}
+		};
+	})(upgradeButtons[i], i);
+}
+// --- Game Update Loop ---
+game.update = function () {
+	// Add cookies per second
+	if (cookiesPerSecond > 0) {
+		// 60 ticks per second
+		cookies += cookiesPerSecond / 60;
+		updateCookieText();
+	}
+	// Save every 2 seconds
+	if (LK.ticks % 120 === 0) {
+		saveGame();
+	}
+};
+// --- Initial UI Update ---
+cookiesPerSecond = getTotalCps();
+updateCookieText();
+updateCpsText();
+updateUpgradeButtons();
+saveGame();
\ No newline at end of file