diff --git a/src/FileManager.java b/src/FileManager.java
index 6142032..6a3127f 100644
--- a/src/FileManager.java
+++ b/src/FileManager.java
@@ -22,7 +22,9 @@ public class FileManager {
         } else {
             Scanner fileReader = new Scanner(newFile);
             // using the delimiter \\Z reads the entire file at once
-            return fileReader.useDelimiter("\\Z").next();
+            String returnString = fileReader.useDelimiter("\\Z").next();
+            fileReader.close();
+            return returnString;
         }
     }
 
@@ -35,10 +37,18 @@ public class FileManager {
         } else {
             objectStream = new ObjectInputStream(fileStream);
         }
-        o = objectStream.readObject();
+        try {
+            o = objectStream.readObject();
+        } catch (Exception e) {
+            // please note that the broad exception Exception was used here
+            // as in the event of any exception, the object should still be closed
+            // additionally, the exception is reraised, so no information is lost from being too coarse
+            objectStream.close();
+            fileStream.close();
+            throw e;
+        }
         objectStream.close();
         fileStream.close();
-        System.out.println("done");
         return o;
     }
 
diff --git a/src/GamePanel.java b/src/GamePanel.java
index 07f9a01..e7b293a 100644
--- a/src/GamePanel.java
+++ b/src/GamePanel.java
@@ -168,7 +168,7 @@ public class GamePanel extends JPanel implements Runnable, KeyListener, Serializ
               try {
                 if (isDialogue || isPaused) {
                   mouseAlreadyTranslated = true;
-                  keyPressed(new KeyEvent(new Component() {}, 0, 0, 0, KeyEvent.VK_ENTER));
+                  keyPressed(new KeyEvent(new Component() {}, 0, 0, 0, KeyEvent.VK_ENTER, (char)KeyEvent.VK_ENTER));
                 } else {
                   player.mousePressed(e);
                 }
@@ -519,9 +519,9 @@ public class GamePanel extends JPanel implements Runnable, KeyListener, Serializ
   public void updateParticle() throws IOException {
     if(particles.size()<10) {
       for (int i = 0; i < particleTiles.size(); i++) {
-        if (GlobalState.randInt(1, 20) == 1) {
-          particles.add(new Particle(particleTiles.get(i).x + GlobalState.randInt(0, Tile.length), particleTiles.get(i).y + GlobalState.randInt(0, Tile.length / 2),
-                  GlobalState.randInt(-3, 3), GlobalState.randInt(-5, 2), GlobalState.randInt(5, 9), "img/particles/LavaParticle.png"));
+        if (UtilityFunction.randInt(1, 20) == 1) {
+          particles.add(new Particle(particleTiles.get(i).x + UtilityFunction.randInt(0, Tile.length), particleTiles.get(i).y + UtilityFunction.randInt(0, Tile.length / 2),
+                  UtilityFunction.randInt(-3, 3), UtilityFunction.randInt(-5, 2), UtilityFunction.randInt(5, 9), "img/particles/LavaParticle.png"));
         }
       }
     }
diff --git a/src/GlobalState.java b/src/GlobalState.java
index 6134f76..e60f2be 100644
--- a/src/GlobalState.java
+++ b/src/GlobalState.java
@@ -2,7 +2,4 @@ import java.io.Serializable;
 
 public class GlobalState implements Serializable {
     public static final int second = 10;
-    public static int randInt(int low, int high){
-        return (int)(Math.random()*(high-low+1))+low;
-    }
 }
diff --git a/src/MenuPanel.java b/src/MenuPanel.java
index 4bd729e..f449e8e 100644
--- a/src/MenuPanel.java
+++ b/src/MenuPanel.java
@@ -75,7 +75,7 @@ public class MenuPanel extends JPanel implements Runnable, KeyListener{
             public void mousePressed(MouseEvent e) {
                 if (hoverCheck(e)) {
                     keyPressed(new KeyEvent(new Component() {
-                    }, 0, 0, 0, KeyEvent.VK_ENTER));
+                    }, 0, 0, 0, KeyEvent.VK_ENTER, (char)KeyEvent.VK_ENTER));
                 }
             }
         });
diff --git a/src/Player.java b/src/Player.java
index 3c5ae4d..485694b 100644
--- a/src/Player.java
+++ b/src/Player.java
@@ -7,8 +7,6 @@ import javax.sound.sampled.UnsupportedAudioFileException;
 import java.awt.*;
 import java.awt.event.KeyEvent;
 import java.awt.event.MouseEvent;
-import java.awt.image.BufferedImage;
-import java.awt.image.ImageObserver;
 import java.io.IOException;
 import java.util.Arrays;
 import java.util.LinkedList;
@@ -421,9 +419,9 @@ public class Player extends GenericSprite {
     }
   }
   public void addParticle(int x) throws IOException {
-    if(GlobalState.randInt(1,3)==3) {
-      GameFrame.game.particles.add(new Particle(this.x + GameFrame.game.camera.x + WIDTH / 2 + GlobalState.randInt(-PLAYER_WIDTH / 2, PLAYER_WIDTH / 2)
-              , (int) (y + HEIGHT * 0.95), GlobalState.randInt(-2, 2) + x, GlobalState.randInt(-4, 1), GlobalState.randInt(1, 7), "img/particles/GrassParticle.png"));
+    if(UtilityFunction.randInt(1,3)==3) {
+      GameFrame.game.particles.add(new Particle(this.x + GameFrame.game.camera.x + WIDTH / 2 + UtilityFunction.randInt(-PLAYER_WIDTH / 2, PLAYER_WIDTH / 2)
+              , (int) (y + HEIGHT * 0.95), UtilityFunction.randInt(-2, 2) + x, UtilityFunction.randInt(-4, 1), UtilityFunction.randInt(1, 7), "img/particles/GrassParticle.png"));
     }
     }
   public int draw(Graphics g, int frame) {
diff --git a/src/StickyBomb.java b/src/StickyBomb.java
index a1ac00e..64ee3b0 100644
--- a/src/StickyBomb.java
+++ b/src/StickyBomb.java
@@ -214,7 +214,8 @@ public class StickyBomb extends GenericSprite implements Serializable {
             g.drawImage(sprite.image, x - GameFrame.game.camera.x - (spriteLength-length)/2, y - (spriteLength-length)/2, spriteLength, spriteLength, null);
             //g.drawRect(x-GameFrame.game.camera.x,y,length,length);
         } else if (explosionPixel < explosionSpriteArray.length - 1) {
-            g.drawImage(explosionSpriteArray[explosionPixel].image, x - GameFrame.game.camera.x - 10*explosionPixel,
+            // please note that the explosion is completely centered on the x plane ("5*") but tends upwards on the y plane ("10*")
+            g.drawImage(explosionSpriteArray[explosionPixel].image, x - GameFrame.game.camera.x - 5*explosionPixel,
                     y-10*explosionPixel, spriteLength+10*explosionPixel, spriteLength+10*explosionPixel, null);
             explosionCounter += 1;
         }  else {
diff --git a/src/UtilityFunction.java b/src/UtilityFunction.java
index 764d65e..5bb6c46 100644
--- a/src/UtilityFunction.java
+++ b/src/UtilityFunction.java
@@ -29,4 +29,8 @@ public final class UtilityFunction {
         }
         return currentBox;
     }
+
+    public static int randInt(int low, int high){
+        return (int)(Math.random()*(high-low+1))+low;
+    }
 }