diff --git a/source/core/src/main/com/csse3200/game/areas/ForestGameArea.java b/source/core/src/main/com/csse3200/game/areas/ForestGameArea.java
index db2890793..a46125349 100644
--- a/source/core/src/main/com/csse3200/game/areas/ForestGameArea.java
+++ b/source/core/src/main/com/csse3200/game/areas/ForestGameArea.java
@@ -206,9 +206,9 @@ public class ForestGameArea extends GameArea {
           "sounds/mobs/archerArrow.mp3"
 
   };
-  private static final String backgroundMusic = "sounds/background/Sci-Fi1.ogg";
+  private static final String BACKGROUND_MUSIC = "sounds/background/Sci-Fi1.ogg";
 
-  private static final String[] forestMusic = {backgroundMusic};
+  private static final String[] forestMusic = {BACKGROUND_MUSIC};
   private Entity player;
   private Entity waves;
 
@@ -893,7 +893,7 @@ private void spawnDroidTower() {
   }
 
   private void playMusic() {
-    Music music = ServiceLocator.getResourceService().getAsset(backgroundMusic, Music.class);
+    Music music = ServiceLocator.getResourceService().getAsset(BACKGROUND_MUSIC, Music.class);
     music.setLooping(true);
     music.setVolume(0.3f);
     music.play();
diff --git a/source/core/src/main/com/csse3200/game/components/gamearea/CurrencyDisplay.java b/source/core/src/main/com/csse3200/game/components/gamearea/CurrencyDisplay.java
index c4388e0cf..bfd4c0b31 100644
--- a/source/core/src/main/com/csse3200/game/components/gamearea/CurrencyDisplay.java
+++ b/source/core/src/main/com/csse3200/game/components/gamearea/CurrencyDisplay.java
@@ -28,7 +28,7 @@ public class CurrencyDisplay extends UIComponent {
     private TextButton scrapsTb;
     private TextButton crystalsTb;
     private Sound clickSound;
-    private static final String defaultFont = "determination_mono_18";
+    private static final String DEFAULT_FONT = "determination_mono_18";
 
     /**
      * Adds actors to stage
@@ -63,7 +63,7 @@ private void addActors() {
     private TextButton createButton(String imageFilePath, int value) {
         Drawable drawable = new TextureRegionDrawable(new TextureRegion(new Texture(imageFilePath)));
         TextButton.TextButtonStyle style = new TextButton.TextButtonStyle(
-                drawable, drawable, drawable, getSkin().getFont(defaultFont));
+                drawable, drawable, drawable, getSkin().getFont(DEFAULT_FONT));
 
         // create button
         TextButton tb = new TextButton(String.format("%d", value), style);
diff --git a/source/core/src/main/com/csse3200/game/components/gamearea/EngineerCountDisplay.java b/source/core/src/main/com/csse3200/game/components/gamearea/EngineerCountDisplay.java
index 3f569d147..80f419d47 100644
--- a/source/core/src/main/com/csse3200/game/components/gamearea/EngineerCountDisplay.java
+++ b/source/core/src/main/com/csse3200/game/components/gamearea/EngineerCountDisplay.java
@@ -7,7 +7,6 @@
 import com.badlogic.gdx.scenes.scene2d.ui.Table;
 import com.badlogic.gdx.scenes.scene2d.ui.TextButton;
 import com.badlogic.gdx.scenes.scene2d.ui.TextTooltip;
-import com.badlogic.gdx.scenes.scene2d.ui.TooltipManager;
 import com.badlogic.gdx.scenes.scene2d.utils.Drawable;
 import com.badlogic.gdx.scenes.scene2d.utils.TextureRegionDrawable;
 import com.badlogic.gdx.utils.Align;
@@ -16,7 +15,7 @@
 
 public class EngineerCountDisplay extends UIComponent {
     private TextButton engineerTb;
-    private static final String defaultFont = "determination_mono_18";
+    private static final String DEFAULT_FONT = "determination_mono_18";
 
     @Override
     public void create() {
@@ -37,7 +36,7 @@ private void addActors() {
         Drawable drawable = new TextureRegionDrawable(new TextureRegion(
                 new Texture("images/engineers/engineerBanner.png")));
         TextButton.TextButtonStyle style = new TextButton.TextButtonStyle(
-                drawable, drawable, drawable, getSkin().getFont(defaultFont));
+                drawable, drawable, drawable, getSkin().getFont(DEFAULT_FONT));
 
         String text = String.format("%d", ServiceLocator.getGameEndService().getEngineerCount());
         engineerTb = new TextButton(text, style);
diff --git a/source/core/src/main/com/csse3200/game/components/pausemenu/PauseMenuButtonComponent.java b/source/core/src/main/com/csse3200/game/components/pausemenu/PauseMenuButtonComponent.java
index e0241e660..77591d440 100644
--- a/source/core/src/main/com/csse3200/game/components/pausemenu/PauseMenuButtonComponent.java
+++ b/source/core/src/main/com/csse3200/game/components/pausemenu/PauseMenuButtonComponent.java
@@ -21,8 +21,8 @@ public class PauseMenuButtonComponent extends UIComponent {
     private static final float Z_INDEX = 2f;
     private Window window;
     private final GdxGame game;
-    private static final float windowSizeX = 300;
-    private static final float windowSizeY = 400;
+    private static final float WINDOW_SIZE_X = 300;
+    private static final float WINDOW_SIZE_Y = 400;
     private final String[] sounds = {
             "sounds/ui/click/click_01.ogg",
             "sounds/ui/open_close/close_01.ogg",
@@ -110,10 +110,10 @@ public void changed(ChangeEvent changeEvent, Actor actor) {
         window.add(planetSelectBtn).center();
         window.row();
         window.add(mainMenuBtn).center();
-        window.setWidth(windowSizeX);
-        window.setHeight(windowSizeY);
-        window.setX((ServiceLocator.getRenderService().getStage().getWidth() / 2) - (windowSizeX / 2));
-        window.setY((ServiceLocator.getRenderService().getStage().getHeight() / 2) - (windowSizeY / 2));
+        window.setWidth(WINDOW_SIZE_X);
+        window.setHeight(WINDOW_SIZE_Y);
+        window.setX((ServiceLocator.getRenderService().getStage().getWidth() / 2) - (WINDOW_SIZE_X / 2));
+        window.setY((ServiceLocator.getRenderService().getStage().getHeight() / 2) - (WINDOW_SIZE_Y / 2));
 
         stage.addActor(window);
     }
diff --git a/source/core/src/main/com/csse3200/game/components/pausemenu/PauseMenuTimeStopComponent.java b/source/core/src/main/com/csse3200/game/components/pausemenu/PauseMenuTimeStopComponent.java
index e2c08c105..371c64690 100644
--- a/source/core/src/main/com/csse3200/game/components/pausemenu/PauseMenuTimeStopComponent.java
+++ b/source/core/src/main/com/csse3200/game/components/pausemenu/PauseMenuTimeStopComponent.java
@@ -13,6 +13,7 @@ public class PauseMenuTimeStopComponent extends Component {
 
     private Array<Entity> freezeList;
     public PauseMenuTimeStopComponent() {
+        // Not implemented
     }
 
     /**