diff --git a/bin/.gitignore b/bin/.gitignore
new file mode 100644
index 0000000..b37a95c
--- /dev/null
+++ b/bin/.gitignore
@@ -0,0 +1,2 @@
+/playground/
+/base/
diff --git a/bin/base/MultiLevelGame.class b/bin/base/MultiLevelGame.class
index b1d6dc3..7323e32 100644
Binary files a/bin/base/MultiLevelGame.class and b/bin/base/MultiLevelGame.class differ
diff --git a/src/base/MultiLevelGame.java b/src/base/MultiLevelGame.java
index e0a4962..ac8b0e8 100644
--- a/src/base/MultiLevelGame.java
+++ b/src/base/MultiLevelGame.java
@@ -8,6 +8,9 @@ import playground.Level1;
 import playground.Level3;
 import playground.LevelBoss;
 import playground.LevelHitTwice;
+import playground.Level5;
+import playground.Level6;
+import playground.Level7;
 
 
 public class MultiLevelGame extends GameLoop{
@@ -25,6 +28,9 @@ public class MultiLevelGame extends GameLoop{
 	    this.addLevel(new LevelHitTwice());
 	    this.addLevel(new Level3());
 	    this.addLevel(new LevelBoss());
+	    this.addLevel(new Level5());
+	    this.addLevel(new Level6());
+	    this.addLevel(new Level7());
 	  }
 	
 }
diff --git a/src/playground/Level5.java b/src/playground/Level5.java
new file mode 100644
index 0000000..4b838de
--- /dev/null
+++ b/src/playground/Level5.java
@@ -0,0 +1,27 @@
+package playground;
+
+
+/**
+ * extends {@link SpaceInvadersLevel} with a boring start message
+ */
+public class Level5 extends SpaceInvadersLevelAua {
+
+  @Override
+  protected String getStartupMessage() {
+    return "Level5, get ready!";
+  }
+  
+  @Override
+  protected int calcNrEnemies() {
+	  return 5;
+  }
+  @Override
+  protected double calcEnemySpeedX() {
+	  return 160;
+  }
+  @Override
+  protected double calcEnemySpeedY() {
+	  return 80;
+  }
+  
+}
diff --git a/src/playground/Level6.java b/src/playground/Level6.java
new file mode 100644
index 0000000..e97acb1
--- /dev/null
+++ b/src/playground/Level6.java
@@ -0,0 +1,27 @@
+package playground;
+
+
+/**
+ * extends {@link SpaceInvadersLevel} with a boring start message
+ */
+public class Level6 extends SpaceInvadersLevelAua {
+
+  @Override
+  protected String getStartupMessage() {
+    return "Level6, get ready!";
+  }
+  
+  @Override
+  protected int calcNrEnemies() {
+	  return 12;
+  }
+  @Override
+  protected double calcEnemySpeedX() {
+	  return 480;
+  }
+  @Override
+  protected double calcEnemySpeedY() {
+	  return 80;
+  }
+
+}
diff --git a/src/playground/Level7.java b/src/playground/Level7.java
new file mode 100644
index 0000000..d10d894
--- /dev/null
+++ b/src/playground/Level7.java
@@ -0,0 +1,27 @@
+package playground;
+
+
+/**
+ * extends {@link SpaceInvadersLevel} with a boring start message
+ */
+public class Level7 extends SpaceInvadersLevelAua {
+
+  @Override
+  protected String getStartupMessage() {
+    return "Level7, get ready!";
+  }
+  @Override
+  protected int calcNrEnemies() {
+	  return 21;
+  }
+  @Override
+  protected double calcEnemySpeedX() {
+	  return 800;
+  }
+  @Override
+  protected double calcEnemySpeedY() {
+	  return 140;
+  }
+
+
+}
diff --git a/src/playground/SpaceInvadersLevelAua.java b/src/playground/SpaceInvadersLevelAua.java
new file mode 100644
index 0000000..8087f58
--- /dev/null
+++ b/src/playground/SpaceInvadersLevelAua.java
@@ -0,0 +1,73 @@
+package playground;
+
+// import utilities.* ;
+import java.awt.Color;
+import java.awt.Font;
+import java.awt.Graphics2D;
+import java.awt.Polygon;
+import java.awt.RenderingHints;
+import java.awt.font.TextAttribute;
+import java.awt.image.BufferedImage;
+import java.io.*;
+import java.text.AttributedString;
+import java.util.LinkedList;
+import controller.EnemyController;
+import controller.FallingStarController;
+import controller.LimitedTimeController;
+import controller.ObjectController;
+import controller.EgoController;
+import controller.CollisionAwareEgoController;
+import gameobjects.AnimatedGameobject;
+import gameobjects.FallingStar;
+import gameobjects.GameObject;
+import gameobjects.EgoObject;
+import gameobjects.TextObject;
+import org.apache.logging.log4j.Logger;
+import org.apache.logging.log4j.LogManager;
+
+/**
+ * Class that realizes all the game logic of a very simple game level. The level contains for now
+ * only two objects that are {@link GameObject} subclasses: {@link FallingStar} and
+ * {@link EgoObject}. Functions performed by this class are:
+ * <ul>
+ * <li>initially set up the level, spawn all object etc., in method {@link #prepareLevel}
+ * <li>React to game events in {@link #actionIfEgoCollidesWithCollect(GameObject, GameObject)} ,
+ * {@link #actionIfEgoCollidesWithEnemy(GameObject, GameObject)}, etc.
+ * <li>define basic object movement rules for all objects in the level in the various
+ * ObjectController subclasses: {@link EgoController} and {@link FallingStarController}.
+ * </ul>
+ */
+public class SpaceInvadersLevelAua extends SpaceInvadersLevel {
+
+	
+  /**
+   * implements game behavior if an enemy object is hit by a players' shot. It creates an explosion
+   * effect, plays a sound and adds 200 points to the current score (and it removes the enemy object
+   * and the shot object).
+   * 
+   * @param e enemy which was hit
+   * @param shot the shot object that hit the enemy
+   */
+  void actionIfEnemyIsHit(GameObject e, GameObject shot) {
+
+    double gameTime = this.getGameTime();
+    createExplosion(gameTime, e, "shard", DYING_INTERVAL, Color.RED);
+
+    Music.music(smash);
+
+    // delete enemy
+    deleteObject(e.getId());
+
+    // delete shot
+    deleteObject(shot.getId());
+
+    // add to points counter
+    Integer pts = (Integer) getGlobalFlag("points");
+    setGlobalFlag("points", pts + 200);
+    
+    //print aua on console
+    System.out.println("AUA!!");
+
+  }
+
+}