diff --git a/src/de/teamteamteam/spacescooter/entity/LivingEntity.java b/src/de/teamteamteam/spacescooter/entity/LivingEntity.java
index b800063..2b76b7f 100644
--- a/src/de/teamteamteam/spacescooter/entity/LivingEntity.java
+++ b/src/de/teamteamteam/spacescooter/entity/LivingEntity.java
@@ -81,7 +81,16 @@ public abstract class LivingEntity extends CollidableEntity implements Hittable
 		if (this.isAlive() == false)
 			return;
 		// TODO: shield and health logic
-		this.healthPoints -= damage;
+		if (this.shieldPoints > 0) {
+			if (this.shieldPoints < damage) {
+				this.healthPoints = (damage - this.shieldPoints);
+				this.shieldPoints = 0;
+			} else {
+				this.shieldPoints -= damage;
+			}
+		} else {
+			this.healthPoints -= damage;
+		}
 		if (this.isAlive() == false) {
 			// Set the correct values for gui indicators
 			this.healthPoints = 0;
diff --git a/src/de/teamteamteam/spacescooter/entity/Player.java b/src/de/teamteamteam/spacescooter/entity/Player.java
index 0f2d88f..c8e1912 100644
--- a/src/de/teamteamteam/spacescooter/entity/Player.java
+++ b/src/de/teamteamteam/spacescooter/entity/Player.java
@@ -184,10 +184,21 @@ public class Player extends ShootingEntity implements KeyboardListener {
 	 * method for increasing the HealthPoints with the Heal-Item
 	 */
 	public void increaseHealthPoints(int inc) {
-		if (this.getHealthPoints() <= 85) {
-			this.setHealthPoints(getHealthPercent() + inc);
+		if (this.getHealthPoints() <= (StaticValue.HealthPoints - 15)) {
+			this.setHealthPoints(getHealthPoints() + inc);
 		} else {
-			this.setHealthPoints(100);
+			this.setHealthPoints(StaticValue.HealthPoints);
+		}
+	}
+	
+	/**
+	 * method for increasing the ShieldPoints with the Shield-Item
+	 */
+	public void increaseShieldPoints(int inc) {
+		if (this.getShieldPoints() <= (StaticValue.ShieldPoints - 5)) {
+			this.setShieldPoints(getShieldPoints() + inc);
+		} else {
+			this.setShieldPoints(StaticValue.ShieldPoints);
 		}
 	}
 	
diff --git a/src/de/teamteamteam/spacescooter/entity/item/ItemNuke.java b/src/de/teamteamteam/spacescooter/entity/item/ItemNuke.java
index 5aaf7a6..4baa2ce 100644
--- a/src/de/teamteamteam/spacescooter/entity/item/ItemNuke.java
+++ b/src/de/teamteamteam/spacescooter/entity/item/ItemNuke.java
@@ -1,9 +1,17 @@
 package de.teamteamteam.spacescooter.entity.item;
 
+import de.teamteamteam.spacescooter.datastructure.ConcurrentIterator;
+import de.teamteamteam.spacescooter.entity.Entity;
+import de.teamteamteam.spacescooter.entity.LivingEntity;
 import de.teamteamteam.spacescooter.entity.Player;
+import de.teamteamteam.spacescooter.entity.enemy.Enemy;
+import de.teamteamteam.spacescooter.screen.Screen;
 
 public class ItemNuke extends Item {
 
+	
+	private ConcurrentIterator<Entity> entityIterator;
+	
 	public ItemNuke(int x, int y) {
 		super(x, y);
 		this.setImage("images/items/itemNuke.png");
@@ -12,6 +20,13 @@ public class ItemNuke extends Item {
 	@Override
 	public void itemCollected(Player player) {
 		System.out.println("Gotta Nuke 'em All!");
+		this.entityIterator = Screen.currentScreen.createEntityIterator();
+		entityIterator.reset();
+		while (entityIterator.hasNext()) {
+			Entity entity = entityIterator.next();
+			if(entity instanceof Enemy) {
+				((LivingEntity) entity).takeDamage(20);
+			}
+		}
 	}
-
 }
diff --git a/src/de/teamteamteam/spacescooter/entity/item/ItemShield.java b/src/de/teamteamteam/spacescooter/entity/item/ItemShield.java
index 56769a5..6a0386f 100644
--- a/src/de/teamteamteam/spacescooter/entity/item/ItemShield.java
+++ b/src/de/teamteamteam/spacescooter/entity/item/ItemShield.java
@@ -11,6 +11,6 @@ public class ItemShield extends Item {
 
 	@Override
 	public void itemCollected(Player player) {
-		player.setShieldPoints(player.getShieldPoints() + 5);
+		player.increaseShieldPoints(5);
 	}
 }
diff --git a/src/de/teamteamteam/spacescooter/level/Level.java b/src/de/teamteamteam/spacescooter/level/Level.java
index 9370d5d..d632f76 100644
--- a/src/de/teamteamteam/spacescooter/level/Level.java
+++ b/src/de/teamteamteam/spacescooter/level/Level.java
@@ -1,13 +1,17 @@
 package de.teamteamteam.spacescooter.level;
 
 import java.awt.Point;
+import java.awt.event.KeyEvent;
 import java.util.ArrayList;
 
 import de.teamteamteam.spacescooter.background.StarBackground;
+import de.teamteamteam.spacescooter.control.Keyboard;
 import de.teamteamteam.spacescooter.entity.Player;
 import de.teamteamteam.spacescooter.entity.enemy.EnemyBoss;
 import de.teamteamteam.spacescooter.entity.enemy.EnemyFour;
+import de.teamteamteam.spacescooter.entity.enemy.EnemyOne;
 import de.teamteamteam.spacescooter.entity.enemy.EnemyThree;
+import de.teamteamteam.spacescooter.entity.enemy.EnemyTwo;
 import de.teamteamteam.spacescooter.entity.item.ItemChance;
 import de.teamteamteam.spacescooter.screen.GameScreen;
 import de.teamteamteam.spacescooter.utility.Loader;
@@ -25,6 +29,8 @@ public final class Level {
 	 * Internal LevelConfig containing all the details about how this Level will manage GamePlay.
 	 */
 	private LevelConfig config;
+	
+	ArrayList<Point> points = new ArrayList<Point>();
 
 
 	/**
@@ -45,14 +51,14 @@ public final class Level {
 		
 		
 		new ItemChance();
-		ArrayList<Point> points = new ArrayList<Point>();
+		/*ArrayList<Point> points = new ArrayList<Point>();
 		points.add(new Point(300,300));
 		points.add(new Point(600,100));
 		points.add(new Point(0,500));
-		new EnemyFour(800, 400, points);
+		new EnemyFour(800, 400, points);*/
 
-		new EnemyThree(450, 100);
-		new EnemyBoss(200, 300);
+		//new EnemyThree(450, 100);
+		//new EnemyBoss(200, 300);
 	}
 	
 	/**
@@ -63,7 +69,25 @@ public final class Level {
 	 * is neccessary to torture the player.
 	 */
 	public void handleUpdateTick() {
-		
+		//Debug Spawn Enemy on Press
+		if (Keyboard.isKeyDown(KeyEvent.VK_1)) {
+			new EnemyOne(400,400);
+		}
+		if (Keyboard.isKeyDown(KeyEvent.VK_2)) {
+			new EnemyTwo(400,400);
+		}
+		if (Keyboard.isKeyDown(KeyEvent.VK_3)) {
+			new EnemyThree(400,400);
+		}
+		if (Keyboard.isKeyDown(KeyEvent.VK_4)) {
+			points.add(new Point(300,300));
+			points.add(new Point(600,100));
+			points.add(new Point(0,500));
+			new EnemyFour(400,400,points);
+		}
+		if (Keyboard.isKeyDown(KeyEvent.VK_0)) {
+			new EnemyBoss(400,400);
+		}
 	}
 	
 	/**
diff --git a/src/de/teamteamteam/spacescooter/screen/GameScreen.java b/src/de/teamteamteam/spacescooter/screen/GameScreen.java
index e4325ab..c894658 100644
--- a/src/de/teamteamteam/spacescooter/screen/GameScreen.java
+++ b/src/de/teamteamteam/spacescooter/screen/GameScreen.java
@@ -76,6 +76,7 @@ public class GameScreen extends Screen {
 		if (Keyboard.isKeyDown(KeyEvent.VK_ESCAPE)) {
 			this.setOverlay(new GamePausedScreen(this));
 		}
+		
 		//Go to GameOverScreen if the game is actually over.
 		if (this.level.isGameOver()) {
 			this.parent.setOverlay(new GameOverScreen(this.parent));