diff --git a/osu.Game.Rulesets.Catch.Tests/TestSceneCatcherSkinning.cs b/osu.Game.Rulesets.Catch.Tests/TestSceneCatcherSkinning.cs
index fa9486b087..e1ec88d4a9 100644
--- a/osu.Game.Rulesets.Catch.Tests/TestSceneCatcherSkinning.cs
+++ b/osu.Game.Rulesets.Catch.Tests/TestSceneCatcherSkinning.cs
@@ -26,7 +26,7 @@ namespace osu.Game.Rulesets.Catch.Tests
             typeof(CatcherSprite),
         };
 
-        private Container container;
+        private readonly Container container;
 
         public TestSceneCatcherSkinning()
         {
@@ -79,7 +79,11 @@ namespace osu.Game.Rulesets.Catch.Tests
 
         private class CatchCustomSkinSourceContainer : Container, ISkinSource
         {
-            public event Action SourceChanged;
+            public event Action SourceChanged
+            {
+                add { }
+                remove { }
+            }
 
             public Drawable GetDrawableComponent(string componentName) => new CatcherCustomSkin();
 
diff --git a/osu.Game.Rulesets.Catch/UI/CatcherArea.cs b/osu.Game.Rulesets.Catch/UI/CatcherArea.cs
index 18121bba4b..0b06e958e6 100644
--- a/osu.Game.Rulesets.Catch/UI/CatcherArea.cs
+++ b/osu.Game.Rulesets.Catch/UI/CatcherArea.cs
@@ -6,7 +6,6 @@ using System.Linq;
 using osu.Framework.Allocation;
 using osu.Framework.Graphics;
 using osu.Framework.Graphics.Containers;
-using osu.Framework.Graphics.Sprites;
 using osu.Framework.Input.Bindings;
 using osu.Framework.MathUtils;
 using osu.Game.Beatmaps;
diff --git a/osu.Game.Rulesets.Catch/UI/CatcherSprite.cs b/osu.Game.Rulesets.Catch/UI/CatcherSprite.cs
index 24e5ec500a..1308a9b7a1 100644
--- a/osu.Game.Rulesets.Catch/UI/CatcherSprite.cs
+++ b/osu.Game.Rulesets.Catch/UI/CatcherSprite.cs
@@ -13,8 +13,6 @@ namespace osu.Game.Rulesets.Catch.UI
 {
     public class CatcherSprite : SkinReloadableDrawable
     {
-        private Drawable catcher;
-
         public CatcherSprite()
         {
             Size = new Vector2(CatcherArea.CATCHER_SIZE);
@@ -26,10 +24,10 @@ namespace osu.Game.Rulesets.Catch.UI
         [BackgroundDependencyLoader]
         private void load(TextureStore textures)
         {
-            InternalChild = new Container()
+            InternalChild = new Container
             {
                 RelativeSizeAxes = Axes.Both,
-                Child = catcher = new SkinnableDrawable("fruit-catcher-idle", _ => new Sprite()
+                Child = new SkinnableDrawable("fruit-catcher-idle", _ => new Sprite
                 {
                     Texture = textures.Get(@"Play/Catch/fruit-catcher-idle"),
                     RelativeSizeAxes = Axes.Both,