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

/**** 
* Classes
****/ 
var DeleteButton = Container.expand(function () {
	var self = Container.call(this);
	var background = self.attachAsset('numberButton', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	var deleteText = new Text2('CLEAR', {
		size: 35,
		fill: 0x333333
	});
	deleteText.anchor.set(0.5, 0.5);
	self.addChild(deleteText);
	self.down = function (x, y, obj) {
		if (selectedCell && !selectedCell.isInitial && selectedCell.value > 0) {
			selectedCell.setValue(0);
			checkForErrors();
			LK.getSound('select').play();
		}
	};
	return self;
});
var HintButton = Container.expand(function () {
	var self = Container.call(this);
	var background = self.attachAsset('hintButton', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	var hintText = new Text2('HINT', {
		size: 40,
		fill: 0x333333
	});
	hintText.anchor.set(0.5, 0.5);
	self.addChild(hintText);
	self.down = function (x, y, obj) {
		if (selectedCell && !selectedCell.isInitial && selectedCell.value === 0) {
			var correctValue = getCorrectValueForCell(selectedCell.row, selectedCell.col);
			selectedCell.setValue(correctValue);
			checkWinCondition();
			LK.getSound('correct').play();
		}
	};
	return self;
});
var Menu = Container.expand(function () {
	var self = Container.call(this);
	// Menu title
	var titleText = new Text2('SUDOKU', {
		size: 120,
		fill: 0x333333
	});
	titleText.anchor.set(0.5, 0.5);
	titleText.x = 1024;
	titleText.y = 800;
	self.addChild(titleText);
	// Subtitle
	var subtitleText = new Text2('Select Difficulty', {
		size: 60,
		fill: 0x666666
	});
	subtitleText.anchor.set(0.5, 0.5);
	subtitleText.x = 1024;
	subtitleText.y = 950;
	self.addChild(subtitleText);
	// Easy button
	var easyButton = self.attachAsset('numberButton', {
		anchorX: 0.5,
		anchorY: 0.5,
		x: 1024,
		y: 1200,
		scaleX: 2,
		scaleY: 1.5
	});
	var easyText = new Text2('EASY', {
		size: 50,
		fill: 0x333333
	});
	easyText.anchor.set(0.5, 0.5);
	easyText.x = 1024;
	easyText.y = 1200;
	self.addChild(easyText);
	// Medium button
	var mediumButton = self.attachAsset('numberButton', {
		anchorX: 0.5,
		anchorY: 0.5,
		x: 1024,
		y: 1400,
		scaleX: 2,
		scaleY: 1.5
	});
	var mediumText = new Text2('MEDIUM', {
		size: 50,
		fill: 0x333333
	});
	mediumText.anchor.set(0.5, 0.5);
	mediumText.x = 1024;
	mediumText.y = 1400;
	self.addChild(mediumText);
	// Hard button
	var hardButton = self.attachAsset('numberButton', {
		anchorX: 0.5,
		anchorY: 0.5,
		x: 1024,
		y: 1600,
		scaleX: 2,
		scaleY: 1.5
	});
	var hardText = new Text2('HARD', {
		size: 50,
		fill: 0x333333
	});
	hardText.anchor.set(0.5, 0.5);
	hardText.x = 1024;
	hardText.y = 1600;
	self.addChild(hardText);
	self.down = function (x, y, obj) {
		var localPos = self.toLocal(obj.parent.toGlobal(obj.position));
		// Check easy button click
		if (localPos.x > 704 && localPos.x < 1344 && localPos.y > 1080 && localPos.y < 1320) {
			startGame('easy');
		}
		// Check medium button click
		else if (localPos.x > 704 && localPos.x < 1344 && localPos.y > 1280 && localPos.y < 1520) {
			startGame('medium');
		}
		// Check hard button click
		else if (localPos.x > 704 && localPos.x < 1344 && localPos.y > 1480 && localPos.y < 1720) {
			startGame('hard');
		}
	};
	return self;
});
var NumberButton = Container.expand(function (number) {
	var self = Container.call(this);
	self.number = number;
	var background = self.attachAsset('numberButton', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	var numberText = new Text2(number.toString(), {
		size: 60,
		fill: 0x333333
	});
	numberText.anchor.set(0.5, 0.5);
	self.addChild(numberText);
	self.down = function (x, y, obj) {
		if (selectedCell && !selectedCell.isInitial) {
			selectedCell.setValue(self.number);
			checkForErrors();
			checkWinCondition();
			LK.getSound('correct').play();
		}
	};
	return self;
});
var SudokuCell = Container.expand(function (row, col, initialValue) {
	var self = Container.call(this);
	self.row = row;
	self.col = col;
	self.value = initialValue || 0;
	self.isInitial = initialValue > 0;
	self.isSelected = false;
	self.hasError = false;
	// Create border (thick for 3x3 box boundaries)
	var needsThickBorder = row % 3 === 0 || col % 3 === 0;
	var border = self.attachAsset(needsThickBorder ? 'thickBorder' : 'cellBorder', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	// Create cell background
	self.background = self.attachAsset('cell', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	// Create number text
	self.numberText = new Text2(self.value > 0 ? self.value.toString() : '', {
		size: 80,
		fill: self.isInitial ? "#000000" : "#0066cc"
	});
	self.numberText.anchor.set(0.5, 0.5);
	self.addChild(self.numberText);
	self.setValue = function (newValue) {
		if (self.isInitial) return;
		self.value = newValue;
		self.numberText.setText(newValue > 0 ? newValue.toString() : '');
		self.updateDisplay();
	};
	self.setSelected = function (selected) {
		self.isSelected = selected;
		self.updateDisplay();
	};
	self.setError = function (error) {
		self.hasError = error;
		self.updateDisplay();
	};
	self.updateDisplay = function () {
		if (self.hasError) {
			self.removeChild(self.background);
			self.background = self.attachAsset('errorCell', {
				anchorX: 0.5,
				anchorY: 0.5
			});
			self.addChildAt(self.background, 1);
		} else if (self.isSelected) {
			self.removeChild(self.background);
			self.background = self.attachAsset('selectedCell', {
				anchorX: 0.5,
				anchorY: 0.5
			});
			self.addChildAt(self.background, 1);
		} else {
			self.removeChild(self.background);
			self.background = self.attachAsset('cell', {
				anchorX: 0.5,
				anchorY: 0.5
			});
			self.addChildAt(self.background, 1);
		}
	};
	self.down = function (x, y, obj) {
		if (!self.isInitial) {
			selectedCell = self;
			updateCellSelection();
			LK.getSound('select').play();
		}
	};
	return self;
});

/**** 
* Initialize Game
****/ 
var game = new LK.Game({
	backgroundColor: 0xf0f0f0
});

/**** 
* Game Code
****/ 
// Game variables
var grid = [];
var selectedCell = null;
var numberButtons = [];
var startTime = Date.now();
var isComplete = false;
var gameStarted = false;
var selectedDifficulty = 'easy';
var menu = null;
// Sudoku generator functions
function createEmptyGrid() {
	var grid = [];
	for (var i = 0; i < 9; i++) {
		grid[i] = [];
		for (var j = 0; j < 9; j++) {
			grid[i][j] = 0;
		}
	}
	return grid;
}
function isValidPlacement(grid, row, col, num) {
	// Check row
	for (var c = 0; c < 9; c++) {
		if (grid[row][c] === num) return false;
	}
	// Check column
	for (var r = 0; r < 9; r++) {
		if (grid[r][col] === num) return false;
	}
	// Check 3x3 box
	var boxRow = Math.floor(row / 3) * 3;
	var boxCol = Math.floor(col / 3) * 3;
	for (var r = boxRow; r < boxRow + 3; r++) {
		for (var c = boxCol; c < boxCol + 3; c++) {
			if (grid[r][c] === num) return false;
		}
	}
	return true;
}
function shuffleArray(array) {
	for (var i = array.length - 1; i > 0; i--) {
		var j = Math.floor(Math.random() * (i + 1));
		var temp = array[i];
		array[i] = array[j];
		array[j] = temp;
	}
	return array;
}
function fillGrid(grid) {
	for (var row = 0; row < 9; row++) {
		for (var col = 0; col < 9; col++) {
			if (grid[row][col] === 0) {
				var numbers = shuffleArray([1, 2, 3, 4, 5, 6, 7, 8, 9]);
				for (var i = 0; i < numbers.length; i++) {
					var num = numbers[i];
					if (isValidPlacement(grid, row, col, num)) {
						grid[row][col] = num;
						if (fillGrid(grid)) {
							return true;
						}
						grid[row][col] = 0;
					}
				}
				return false;
			}
		}
	}
	return true;
}
function createPuzzle(difficulty) {
	var grid = createEmptyGrid();
	fillGrid(grid);
	// Create a copy for the solution
	var solution = [];
	for (var i = 0; i < 9; i++) {
		solution[i] = [];
		for (var j = 0; j < 9; j++) {
			solution[i][j] = grid[i][j];
		}
	}
	// Remove cells based on difficulty
	var cellsToRemove = difficulty === 'easy' ? 40 : difficulty === 'medium' ? 45 : 50;
	var removed = 0;
	while (removed < cellsToRemove) {
		var row = Math.floor(Math.random() * 9);
		var col = Math.floor(Math.random() * 9);
		if (grid[row][col] !== 0) {
			grid[row][col] = 0;
			removed++;
		}
	}
	return {
		puzzle: grid,
		solution: solution
	};
}
function startGame(difficulty) {
	selectedDifficulty = difficulty;
	gameStarted = true;
	// Remove menu
	if (menu) {
		game.removeChild(menu);
		menu = null;
	}
	// Generate puzzle with selected difficulty
	var gameData = createPuzzle(difficulty);
	puzzleData = gameData.puzzle;
	solution = gameData.solution;
	// Reset game state
	startTime = Date.now();
	isComplete = false;
	selectedCell = null;
	grid = [];
	// Create game elements
	createGameElements();
}
function createGameElements() {
	// Show difficulty selection menu
	menu = new Menu();
	game.addChild(menu);
}
// Initialize with menu
var puzzleData = [];
var solution = [];
// Create grid background
var gridBg = game.attachAsset('gridBackground', {
	anchorX: 0.5,
	anchorY: 0.5,
	x: 1024,
	y: 1100
});
// Create 3x3 box backgrounds for visual distinction
for (var boxRow = 0; boxRow < 3; boxRow++) {
	for (var boxCol = 0; boxCol < 3; boxCol++) {
		var boxIndex = boxRow * 3 + boxCol;
		// Add thick border around each box
		var boxBorder = game.attachAsset('boxBorder', {
			anchorX: 0.5,
			anchorY: 0.5,
			x: 1024 + (boxCol - 1) * 600,
			y: 1100 + (boxRow - 1) * 600
		});
		// Add colored background
		var boxBg = game.attachAsset('boxBackground' + boxIndex, {
			anchorX: 0.5,
			anchorY: 0.5,
			x: 1024 + (boxCol - 1) * 600,
			y: 1100 + (boxRow - 1) * 600
		});
	}
}
// Create Sudoku grid
for (var row = 0; row < 9; row++) {
	grid[row] = [];
	for (var col = 0; col < 9; col++) {
		var cell = new SudokuCell(row, col, puzzleData[row][col]);
		cell.x = 1024 + (col - 4) * 200;
		cell.y = 1100 + (row - 4) * 200;
		grid[row][col] = cell;
		game.addChild(cell);
	}
}
// Create number buttons
var buttonStartX = 300;
var buttonY = 2400;
for (var i = 1; i <= 9; i++) {
	var button = new NumberButton(i);
	button.x = buttonStartX + (i - 1) * 180;
	button.y = buttonY;
	numberButtons.push(button);
	game.addChild(button);
}
// Create delete button
var deleteBtn = new DeleteButton();
deleteBtn.x = buttonStartX + 9 * 180;
deleteBtn.y = buttonY;
game.addChild(deleteBtn);
// Create hint button
var hintBtn = new HintButton();
hintBtn.x = 1024;
hintBtn.y = 2550;
game.addChild(hintBtn);
// Create timer display
var timerText = new Text2('Time: 00:00', {
	size: 60,
	fill: 0x333333
});
timerText.anchor.set(0.5, 0);
LK.gui.top.addChild(timerText);
timerText.y = 50;
// Helper functions
function updateCellSelection() {
	for (var row = 0; row < 9; row++) {
		for (var col = 0; col < 9; col++) {
			grid[row][col].setSelected(grid[row][col] === selectedCell);
		}
	}
}
function checkForErrors() {
	// Clear all errors first
	for (var row = 0; row < 9; row++) {
		for (var col = 0; col < 9; col++) {
			grid[row][col].setError(false);
		}
	}
	// Check for conflicts
	for (var row = 0; row < 9; row++) {
		for (var col = 0; col < 9; col++) {
			var cell = grid[row][col];
			if (cell.value > 0) {
				if (hasConflict(row, col, cell.value)) {
					cell.setError(true);
				}
			}
		}
	}
}
function hasConflict(row, col, value) {
	// Check row
	for (var c = 0; c < 9; c++) {
		if (c !== col && grid[row][c].value === value) {
			return true;
		}
	}
	// Check column  
	for (var r = 0; r < 9; r++) {
		if (r !== row && grid[r][col].value === value) {
			return true;
		}
	}
	// Check 3x3 box
	var boxRow = Math.floor(row / 3) * 3;
	var boxCol = Math.floor(col / 3) * 3;
	for (var r = boxRow; r < boxRow + 3; r++) {
		for (var c = boxCol; c < boxCol + 3; c++) {
			if ((r !== row || c !== col) && grid[r][c].value === value) {
				return true;
			}
		}
	}
	return false;
}
function getCorrectValueForCell(row, col) {
	return solution[row][col];
}
function checkWinCondition() {
	if (isComplete) return;
	var allFilled = true;
	var hasErrors = false;
	for (var row = 0; row < 9; row++) {
		for (var col = 0; col < 9; col++) {
			var cell = grid[row][col];
			if (cell.value === 0) {
				allFilled = false;
			}
			if (cell.hasError) {
				hasErrors = true;
			}
		}
	}
	if (allFilled && !hasErrors) {
		isComplete = true;
		LK.getSound('complete').play();
		LK.effects.flashScreen(0x00ff00, 1000);
		LK.setTimeout(function () {
			LK.showYouWin();
		}, 1500);
	}
}
function formatTime(seconds) {
	var mins = Math.floor(seconds / 60);
	var secs = seconds % 60;
	return 'Time: ' + (mins < 10 ? '0' : '') + mins + ':' + (secs < 10 ? '0' : '') + secs;
}
game.update = function () {
	if (gameStarted && !isComplete) {
		var currentTime = Math.floor((Date.now() - startTime) / 1000);
		timerText.setText(formatTime(currentTime));
	}
};

===================================================================
--- original.js
+++ change.js
@@ -26,30 +26,8 @@
 		}
 	};
 	return self;
 });
-var DifficultyButton = Container.expand(function (difficulty, color) {
-	var self = Container.call(this);
-	self.difficulty = difficulty;
-	var background = self.attachAsset('numberButton', {
-		anchorX: 0.5,
-		anchorY: 0.5,
-		scaleX: 2,
-		scaleY: 1.5
-	});
-	background.tint = color;
-	var difficultyText = new Text2(difficulty.toUpperCase(), {
-		size: 50,
-		fill: 0x333333
-	});
-	difficultyText.anchor.set(0.5, 0.5);
-	self.addChild(difficultyText);
-	self.down = function (x, y, obj) {
-		startGameWithDifficulty(self.difficulty);
-		LK.getSound('select').play();
-	};
-	return self;
-});
 var HintButton = Container.expand(function () {
 	var self = Container.call(this);
 	var background = self.attachAsset('hintButton', {
 		anchorX: 0.5,
@@ -70,11 +48,11 @@
 		}
 	};
 	return self;
 });
-var MenuScreen = Container.expand(function () {
+var Menu = Container.expand(function () {
 	var self = Container.call(this);
-	// Title
+	// Menu title
 	var titleText = new Text2('SUDOKU', {
 		size: 120,
 		fill: 0x333333
 	});
@@ -90,21 +68,74 @@
 	subtitleText.anchor.set(0.5, 0.5);
 	subtitleText.x = 1024;
 	subtitleText.y = 950;
 	self.addChild(subtitleText);
-	// Difficulty buttons
-	var easyBtn = new DifficultyButton('easy', 0x90ee90);
-	easyBtn.x = 1024;
-	easyBtn.y = 1200;
-	self.addChild(easyBtn);
-	var mediumBtn = new DifficultyButton('medium', 0xffd700);
-	mediumBtn.x = 1024;
-	mediumBtn.y = 1400;
-	self.addChild(mediumBtn);
-	var hardBtn = new DifficultyButton('hard', 0xff6b6b);
-	hardBtn.x = 1024;
-	hardBtn.y = 1600;
-	self.addChild(hardBtn);
+	// Easy button
+	var easyButton = self.attachAsset('numberButton', {
+		anchorX: 0.5,
+		anchorY: 0.5,
+		x: 1024,
+		y: 1200,
+		scaleX: 2,
+		scaleY: 1.5
+	});
+	var easyText = new Text2('EASY', {
+		size: 50,
+		fill: 0x333333
+	});
+	easyText.anchor.set(0.5, 0.5);
+	easyText.x = 1024;
+	easyText.y = 1200;
+	self.addChild(easyText);
+	// Medium button
+	var mediumButton = self.attachAsset('numberButton', {
+		anchorX: 0.5,
+		anchorY: 0.5,
+		x: 1024,
+		y: 1400,
+		scaleX: 2,
+		scaleY: 1.5
+	});
+	var mediumText = new Text2('MEDIUM', {
+		size: 50,
+		fill: 0x333333
+	});
+	mediumText.anchor.set(0.5, 0.5);
+	mediumText.x = 1024;
+	mediumText.y = 1400;
+	self.addChild(mediumText);
+	// Hard button
+	var hardButton = self.attachAsset('numberButton', {
+		anchorX: 0.5,
+		anchorY: 0.5,
+		x: 1024,
+		y: 1600,
+		scaleX: 2,
+		scaleY: 1.5
+	});
+	var hardText = new Text2('HARD', {
+		size: 50,
+		fill: 0x333333
+	});
+	hardText.anchor.set(0.5, 0.5);
+	hardText.x = 1024;
+	hardText.y = 1600;
+	self.addChild(hardText);
+	self.down = function (x, y, obj) {
+		var localPos = self.toLocal(obj.parent.toGlobal(obj.position));
+		// Check easy button click
+		if (localPos.x > 704 && localPos.x < 1344 && localPos.y > 1080 && localPos.y < 1320) {
+			startGame('easy');
+		}
+		// Check medium button click
+		else if (localPos.x > 704 && localPos.x < 1344 && localPos.y > 1280 && localPos.y < 1520) {
+			startGame('medium');
+		}
+		// Check hard button click
+		else if (localPos.x > 704 && localPos.x < 1344 && localPos.y > 1480 && localPos.y < 1720) {
+			startGame('hard');
+		}
+	};
 	return self;
 });
 var NumberButton = Container.expand(function (number) {
 	var self = Container.call(this);
@@ -218,11 +249,11 @@
 var selectedCell = null;
 var numberButtons = [];
 var startTime = Date.now();
 var isComplete = false;
-var currentDifficulty = 'easy';
-var menuScreen = null;
 var gameStarted = false;
+var selectedDifficulty = 'easy';
+var menu = null;
 // Sudoku generator functions
 function createEmptyGrid() {
 	var grid = [];
 	for (var i = 0; i < 9; i++) {
@@ -308,21 +339,44 @@
 		puzzle: grid,
 		solution: solution
 	};
 }
-// Initialize variables for later use
-var puzzleData;
-var solution;
+function startGame(difficulty) {
+	selectedDifficulty = difficulty;
+	gameStarted = true;
+	// Remove menu
+	if (menu) {
+		game.removeChild(menu);
+		menu = null;
+	}
+	// Generate puzzle with selected difficulty
+	var gameData = createPuzzle(difficulty);
+	puzzleData = gameData.puzzle;
+	solution = gameData.solution;
+	// Reset game state
+	startTime = Date.now();
+	isComplete = false;
+	selectedCell = null;
+	grid = [];
+	// Create game elements
+	createGameElements();
+}
+function createGameElements() {
+	// Show difficulty selection menu
+	menu = new Menu();
+	game.addChild(menu);
+}
+// Initialize with menu
+var puzzleData = [];
+var solution = [];
 // Create grid background
-// Show menu screen initially
-menuScreen = new MenuScreen();
-game.addChild(menuScreen);
 var gridBg = game.attachAsset('gridBackground', {
 	anchorX: 0.5,
 	anchorY: 0.5,
 	x: 1024,
 	y: 1100
 });
+// Create 3x3 box backgrounds for visual distinction
 for (var boxRow = 0; boxRow < 3; boxRow++) {
 	for (var boxCol = 0; boxCol < 3; boxCol++) {
 		var boxIndex = boxRow * 3 + boxCol;
 		// Add thick border around each box
@@ -340,8 +394,39 @@
 			y: 1100 + (boxRow - 1) * 600
 		});
 	}
 }
+// Create Sudoku grid
+for (var row = 0; row < 9; row++) {
+	grid[row] = [];
+	for (var col = 0; col < 9; col++) {
+		var cell = new SudokuCell(row, col, puzzleData[row][col]);
+		cell.x = 1024 + (col - 4) * 200;
+		cell.y = 1100 + (row - 4) * 200;
+		grid[row][col] = cell;
+		game.addChild(cell);
+	}
+}
+// Create number buttons
+var buttonStartX = 300;
+var buttonY = 2400;
+for (var i = 1; i <= 9; i++) {
+	var button = new NumberButton(i);
+	button.x = buttonStartX + (i - 1) * 180;
+	button.y = buttonY;
+	numberButtons.push(button);
+	game.addChild(button);
+}
+// Create delete button
+var deleteBtn = new DeleteButton();
+deleteBtn.x = buttonStartX + 9 * 180;
+deleteBtn.y = buttonY;
+game.addChild(deleteBtn);
+// Create hint button
+var hintBtn = new HintButton();
+hintBtn.x = 1024;
+hintBtn.y = 2550;
+game.addChild(hintBtn);
 // Create timer display
 var timerText = new Text2('Time: 00:00', {
 	size: 60,
 	fill: 0x333333
@@ -427,80 +512,8 @@
 			LK.showYouWin();
 		}, 1500);
 	}
 }
-function startGameWithDifficulty(difficulty) {
-	currentDifficulty = difficulty;
-	gameStarted = true;
-	// Remove menu screen
-	if (menuScreen) {
-		game.removeChild(menuScreen);
-		menuScreen = null;
-	}
-	// Reset game state
-	startTime = Date.now();
-	isComplete = false;
-	selectedCell = null;
-	// Clear existing game elements
-	for (var row = 0; row < grid.length; row++) {
-		for (var col = 0; col < grid[row].length; col++) {
-			if (grid[row][col]) {
-				game.removeChild(grid[row][col]);
-			}
-		}
-	}
-	grid = [];
-	for (var i = 0; i < numberButtons.length; i++) {
-		game.removeChild(numberButtons[i]);
-	}
-	numberButtons = [];
-	// Remove existing delete and hint buttons if they exist
-	var children = game.children.slice();
-	for (var i = 0; i < children.length; i++) {
-		var child = children[i];
-		if (child instanceof DeleteButton || child instanceof HintButton) {
-			game.removeChild(child);
-		}
-	}
-	// Generate new puzzle with selected difficulty
-	var gameData = createPuzzle(difficulty);
-	puzzleData = gameData.puzzle;
-	solution = gameData.solution;
-	initializeGameElements();
-}
-function initializeGameElements() {
-	// Create Sudoku grid
-	for (var row = 0; row < 9; row++) {
-		grid[row] = [];
-		for (var col = 0; col < 9; col++) {
-			var cell = new SudokuCell(row, col, puzzleData[row][col]);
-			cell.x = 1024 + (col - 4) * 200;
-			cell.y = 1100 + (row - 4) * 200;
-			grid[row][col] = cell;
-			game.addChild(cell);
-		}
-	}
-	// Create number buttons
-	var buttonStartX = 300;
-	var buttonY = 2400;
-	for (var i = 1; i <= 9; i++) {
-		var button = new NumberButton(i);
-		button.x = buttonStartX + (i - 1) * 180;
-		button.y = buttonY;
-		numberButtons.push(button);
-		game.addChild(button);
-	}
-	// Create delete button
-	var deleteBtn = new DeleteButton();
-	deleteBtn.x = buttonStartX + 9 * 180;
-	deleteBtn.y = buttonY;
-	game.addChild(deleteBtn);
-	// Create hint button
-	var hintBtn = new HintButton();
-	hintBtn.x = 1024;
-	hintBtn.y = 2550;
-	game.addChild(hintBtn);
-}
 function formatTime(seconds) {
 	var mins = Math.floor(seconds / 60);
 	var secs = seconds % 60;
 	return 'Time: ' + (mins < 10 ? '0' : '') + mins + ':' + (secs < 10 ? '0' : '') + secs;