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index 00000000..0b3d233c
--- /dev/null
+++ b/popcorn/Assets/MyGame/Scenes/MiniGame/Scripts/BackGround.cs
@@ -0,0 +1,18 @@
+using UnityEngine;
+
+namespace MyGame.Scenes.MiniGame.Scripts
+{
+    public class BackGround : MonoBehaviour
+    {
+        [SerializeField] private GameObject skyA;
+        [SerializeField] private GameObject skyB;
+        [SerializeField] private GameObject skyC;
+
+        public void SetSky(ScrollGameDifficulty difficulty)
+        {
+            skyA.SetActive(difficulty == ScrollGameDifficulty.Easy);
+            skyB.SetActive(difficulty == ScrollGameDifficulty.Normal);
+            skyC.SetActive(difficulty == ScrollGameDifficulty.Hard);
+        }
+    }
+}
\ No newline at end of file
diff --git a/popcorn/Assets/MyGame/Scenes/MiniGame/Scripts/BackGround.cs.meta b/popcorn/Assets/MyGame/Scenes/MiniGame/Scripts/BackGround.cs.meta
new file mode 100644
index 00000000..aafdf681
--- /dev/null
+++ b/popcorn/Assets/MyGame/Scenes/MiniGame/Scripts/BackGround.cs.meta
@@ -0,0 +1,3 @@
+fileFormatVersion: 2
+guid: 55925464a5e04e219bc8367e5e6736a3
+timeCreated: 1656900225
\ No newline at end of file
diff --git a/popcorn/Assets/MyGame/Scenes/MiniGame/Scripts/GameManager.cs b/popcorn/Assets/MyGame/Scenes/MiniGame/Scripts/GameManager.cs
index 97c64efe..b021d75c 100644
--- a/popcorn/Assets/MyGame/Scenes/MiniGame/Scripts/GameManager.cs
+++ b/popcorn/Assets/MyGame/Scenes/MiniGame/Scripts/GameManager.cs
@@ -118,6 +118,7 @@ namespace MyGame.Scenes.MiniGame.Scripts
                         gameData.ScrollGameLastPlayTime = DateTime.UtcNow.ToBinary();
                         gameData.ScrollGameTodayPlayCount++;
                         // ステージ読み込み
+                        stageManager.SetSky(stageData.Difficulty);
                         stageManager.SetBeginStages(stageData.GetBeginStagePrefabs());
                         ResetGame(levelPlaceList, stageData);
                         menuState.Value = MenuState.Game;
@@ -130,6 +131,7 @@ namespace MyGame.Scenes.MiniGame.Scripts
                         gameData.ScrollGameLastPlayTime = DateTime.UtcNow.ToBinary();
                         gameData.ScrollGameTodayPlayCount++;
                         // ステージ読み込み
+                        stageManager.SetSky(stageData.Difficulty);
                         stageManager.SetBeginStages(stageData.GetBeginStagePrefabs());
                         ResetGame(levelPlaceList, stageData);
                         menuState.Value = MenuState.Game;
diff --git a/popcorn/Assets/MyGame/Scenes/MiniGame/Scripts/StageManager.cs b/popcorn/Assets/MyGame/Scenes/MiniGame/Scripts/StageManager.cs
index 7aede57b..f08d1c9d 100644
--- a/popcorn/Assets/MyGame/Scenes/MiniGame/Scripts/StageManager.cs
+++ b/popcorn/Assets/MyGame/Scenes/MiniGame/Scripts/StageManager.cs
@@ -4,6 +4,7 @@ namespace MyGame.Scenes.MiniGame.Scripts
 {
     public class StageManager : MonoBehaviour
     {
+        [SerializeField] private BackGround[] backGrounds;
         [SerializeField] private Transform stageTarget;
         private Transform[] stages;
 
@@ -19,6 +20,14 @@ namespace MyGame.Scenes.MiniGame.Scripts
             }
         }
 
+        public void SetSky(ScrollGameDifficulty difficulty)
+        {
+            foreach (var backGround in backGrounds)
+            {
+                backGround.SetSky(difficulty);
+            }
+        }
+
         public void GenerateStage()
         {