diff --git a/src/ch/bfh/sevennotseven/FieldCanvas.java b/src/ch/bfh/sevennotseven/FieldCanvas.java
index 3021a05..9132d53 100644
--- a/src/ch/bfh/sevennotseven/FieldCanvas.java
+++ b/src/ch/bfh/sevennotseven/FieldCanvas.java
@@ -25,7 +25,6 @@ public class FieldCanvas extends JPanel{
 	};
 	
 	
-	private int size;
 	private Game game;
 	private Point src;
 	private Point dst;
@@ -78,13 +77,12 @@ public class FieldCanvas extends JPanel{
 		addMouseListener(ad);
 		addMouseMotionListener(ad);
 		this.game=g;
-		this.size = game.getSize();
 
 	}
 	
 	private Point getClickPoint(Point globalPos) {
 		int total = Math.min(this.getHeight()-borderTop-borderBottom,FieldCanvas.this.getWidth()-borderLeft-borderRight);
-		int space = total/size;
+		int space = total/game.getSize();
 
 		globalPos.translate(-borderLeft, -borderTop);
 		if(globalPos.x<0 || globalPos.x >total  || globalPos.y < 0 || globalPos.y > total) return null;
@@ -102,22 +100,22 @@ public class FieldCanvas extends JPanel{
 		
 		g.translate(borderLeft, borderTop);
 		int total = Math.min(this.getHeight()-borderTop-borderBottom,FieldCanvas.this.getWidth()-borderLeft-borderRight);
-		int space = total/size;
+		int space = total/game.getSize();
 		
 		g.setClip(0, 0, total-4,total-4);
 		g.fillRect(0, 0, total-4,total-4);
 		
 		g.setColor(Color.white);
 	
-		for(int i=0; i<=size; i++) {
+		for(int i=0; i<=game.getSize(); i++) {
 			g.drawLine(0,i*space,total-2,i*space);
 			g.drawLine(i*space,0,i*space,total-2);
 		}
 	
 		if(game==null) return;
 		
-		for(int x=0; x<size; x++) {
-			for(int y=0; y<size; y++) {
+		for(int x=0; x<game.getSize(); x++) {
+			for(int y=0; y<game.getSize(); y++) {
 				int colorCode = game.getField()[x][y];
 				if(colorCode!=0) {
 					g.setColor(colors[colorCode-1]);
diff --git a/src/ch/bfh/sevennotseven/Game.java b/src/ch/bfh/sevennotseven/Game.java
index a47cdd3..e1a1213 100644
--- a/src/ch/bfh/sevennotseven/Game.java
+++ b/src/ch/bfh/sevennotseven/Game.java
@@ -14,6 +14,7 @@ public class Game {
 	
 	// Constants
 	static final int numberOfColors = 5;
+	static final int linesPerLevel = 40;
 	
 	// Private members
 	private int[][] field;
@@ -24,6 +25,7 @@ public class Game {
 	private int freeBlocks;
 	private int freeMoves;
 	private int numUndos;
+	private int linesLeft;
 	private Random rand;
 	private ArrayList<UpdateListener> updateListeners;
 	
@@ -37,16 +39,9 @@ public class Game {
 	 * @author aaron
 	 * @param size
 	 */
-	public Game (int size) {
-		/* Initialize variables */
-		this.size = size;
-		this.level = 1;
-		this.score = 0;
-		this.freeBlocks = size * size;
-		this.updateListeners = new ArrayList<UpdateListener>();
-		
+	public Game (int size) {		
 		rand = new Random(); // Initialize random object
-		this.reset();
+		this.reset(size);
 	}
 	
 	public void addUpdateListener(UpdateListener listener) {
@@ -75,6 +70,10 @@ public class Game {
 	
 	}
 	
+	public int getLinesLeft() {
+		return linesLeft;
+	}
+	
 	public int getLevel(){
 		return level;
 	}
@@ -223,7 +222,11 @@ public class Game {
 	 * 
 	 * @author aaron
 	 */
-	public void reset(){
+	public void reset(int size){
+		this.size = size;
+		this.freeBlocks = size * size;
+		this.updateListeners = new ArrayList<UpdateListener>();
+		
 		// Initialize new blocks
 		nextBlocks = new ArrayList<Integer>();
 		nextBlocks.add(1);
@@ -236,6 +239,7 @@ public class Game {
 		score = 0;
 		numUndos = 0;
 		freeMoves = 0;
+		linesLeft=linesPerLevel;
 		
 		// Populate game field
 		this.populateField();
@@ -328,6 +332,13 @@ public class Game {
 	private void nextStep(final Point lastPoint) {
 		if(!checkRemoveBlocks(lastPoint)){
 			populateField(); //add new blocks	
+		} else {
+			linesLeft--;
+			if(linesLeft==0) {
+				level++;
+				linesLeft=linesPerLevel;
+			
+			}
 		}
 		emitUpdateEvent();
 	}
diff --git a/src/ch/bfh/sevennotseven/Window.java b/src/ch/bfh/sevennotseven/Window.java
index ca348d4..c031588 100644
--- a/src/ch/bfh/sevennotseven/Window.java
+++ b/src/ch/bfh/sevennotseven/Window.java
@@ -5,11 +5,14 @@ package ch.bfh.sevennotseven;
 
 import java.awt.BorderLayout;
 import java.awt.Button;
+import java.awt.CardLayout;
 import java.awt.Dimension;
 import java.awt.FlowLayout;
 import java.awt.Frame;
 import java.awt.HeadlessException;
 import java.awt.Panel;
+import java.awt.event.ActionEvent;
+import java.awt.event.ActionListener;
 import java.awt.event.WindowAdapter;
 import java.awt.event.WindowEvent;
 
@@ -24,7 +27,7 @@ import javax.swing.JPanel;
  * @author aaron
  *
  */
-public class Window extends JFrame {
+public class Window  extends JFrame implements ActionListener{
 	
 	private static final long serialVersionUID = 1L;
 	private Game game;
@@ -34,6 +37,10 @@ public class Window extends JFrame {
 	private JButton buttonUndo;
 	private JButton buttonFreeMove;
 	private JLabel labelScore;
+	private JLabel labelLinesLeft;	
+	private JLabel labelLevel;
+	private JPanel mainPanel;
+	private CardLayout cardLayout;
 
 
 	public Window(String title) throws HeadlessException {
@@ -59,12 +66,16 @@ public class Window extends JFrame {
 		buttonUndo = new JButton("Undo (0)");
 		buttonUndo.setEnabled(false);
 		labelScore= new JLabel("Score: 0");
+		labelLinesLeft = new JLabel("Lines Left: 40");
+		labelLevel = new JLabel("Level: 1");
 		
 		JPanel topPanel = new JPanel(new FlowLayout(FlowLayout.LEFT));
 
 		topPanel.add(buttonFreeMove);
 		topPanel.add(buttonUndo);
 		topPanel.add(labelScore);
+		topPanel.add(labelLinesLeft);
+		topPanel.add(labelLevel);
 		topPanel.add(moves);
 		
 		game.addUpdateListener(new Game.UpdateListener() {
@@ -76,19 +87,48 @@ public class Window extends JFrame {
 				buttonUndo.setEnabled(game.getAvailUndo()>0);
 				buttonFreeMove.setText("Free Move ("+game.getAvailFreeMoves()+")");
 				buttonUndo.setText("Undo ("+game.getAvailUndo()+")");
+				labelLinesLeft.setText("Lines Left: "+game.getLinesLeft());
+				labelLevel.setText("Level: "+game.getLevel());
 				
 			}
 		});
 		
-
+		JPanel welcomePanel = new JPanel();
+		int sizes [] = {7,8,9,10};
+		for(int i=0; i<sizes.length; i++) {
+			JButton btn = new JButton(sizes[i]+"x"+sizes[i]);
+			btn.addActionListener(this);
+			btn.setActionCommand(Integer.toString(sizes[i]));
+			welcomePanel.add(btn);
+		}
+		
+		
+		JPanel gamePanel = new JPanel();
+		gamePanel.setLayout(new BorderLayout());
+		gamePanel.add(topPanel, BorderLayout.NORTH);
+		gamePanel.add(field);
+		
+		mainPanel = new JPanel();
+		cardLayout = new CardLayout();
+		mainPanel.setLayout(cardLayout);
+		mainPanel.add(welcomePanel);
+		mainPanel.add(gamePanel);
+		
+		this.setContentPane(mainPanel);
 		
-		this.add(topPanel, BorderLayout.NORTH);
-		this.add(field);
 		this.setSize(470,460);
 		this.setVisible(true);
 		
 
 
+	}
+	
+	@Override
+	public void actionPerformed(ActionEvent e) {
+		int size = Integer.parseInt(e.getActionCommand());
+		cardLayout.last(mainPanel);
+		game.reset(size);
+			
 	}
 
 	/**