diff --git a/popcorn/Assets/MyGame/Scenes/MiniGame/Scripts/GameManager.cs b/popcorn/Assets/MyGame/Scenes/MiniGame/Scripts/GameManager.cs
index 0f7cae35..c9b016e6 100644
--- a/popcorn/Assets/MyGame/Scenes/MiniGame/Scripts/GameManager.cs
+++ b/popcorn/Assets/MyGame/Scenes/MiniGame/Scripts/GameManager.cs
@@ -136,9 +136,11 @@ namespace MyGame.Scenes.MiniGame.Scripts
                 switch (x)
                 {
                     case MenuState.StageSelect:
+                        SoundManager.Instance.PlayBGM("bgm_Main");
                         resultManager.gameObject.SetActive(false);
                         break;
                     case MenuState.Game:
+                        SoundManager.Instance.PlayBGM("bgm_minigame");
                         break;
                     default:
                         throw new ArgumentOutOfRangeException(nameof(x), x, null);
@@ -153,6 +155,7 @@ namespace MyGame.Scenes.MiniGame.Scripts
 
             resultManager.OnClose.ThrottleFirst(TimeSpan.FromMilliseconds(.2f)).Subscribe(_ =>
             {
+                SoundManager.Instance.ChangeVolumeUniqueBGM(1f);
                 UpdatePlayCount();
                 scoreUpdate.OnNext(Unit.Default);
                 menuState.Value = MenuState.StageSelect;
@@ -166,7 +169,7 @@ namespace MyGame.Scenes.MiniGame.Scripts
                     state.Value = GameState.Play;
                 }).AddTo(this);
             
-            state.Debug("gameState").Subscribe(x =>
+            state.Subscribe(x =>
             {
                 readyObject.SetActive(x == GameState.Ready);
                 switch (x)
@@ -174,15 +177,25 @@ namespace MyGame.Scenes.MiniGame.Scripts
                     case GameState.Ready:
                         break;
                     case GameState.Play:
-                        Observable.Timer(TimeSpan.Zero, TimeSpan.FromSeconds(1f))
+                        SoundManager.Instance.PlaySE("se_minigame_Start");
+                        var sharedTimer = Observable.Timer(TimeSpan.Zero, TimeSpan.FromSeconds(1f))
                             .Select(time => (int)(timeLimit - time))
-                            .TakeWhile(time => time >= 0)
+                            .TakeWhile(time => time > 0)
+                            .Share();
+                        sharedTimer.Subscribe(time =>
+                        {
+                            headerView.ChangeTimeCount(time);
+                        }, () =>
+                        {
+                            headerView.ChangeTimeCount(0f);
+                            state.Value = GameState.Success;
+                        }).AddTo(gameCompositeDisposable);
+                        sharedTimer
+                            .Where(time => time <= 5)
+                            .Take(1)
                             .Subscribe(time =>
                             {
-                                headerView.ChangeTimeCount(time);
-                            }, () =>
-                            {
-                                state.Value = GameState.Success;
+                                SoundManager.Instance.PlaySE("se_minigame_RemainingTimeLeft");
                             }).AddTo(gameCompositeDisposable);
                         break;
                     case GameState.Success:
@@ -257,6 +270,7 @@ namespace MyGame.Scenes.MiniGame.Scripts
 
         private void ResetGame(ScrollGamePlaceData[] placeList, ScrollGameStageData stageData)
         {
+            SoundManager.Instance.ChangeVolumeUniqueBGM(1f);
             stageManager.ResetStage();
             player.transform.position = characterBeginPos;
             player.Stay();
@@ -274,8 +288,12 @@ namespace MyGame.Scenes.MiniGame.Scripts
                     case GameState.Play:
                         break;
                     case GameState.Success:
+                        SoundManager.Instance.PlaySE("se_minigame_End");
                         player.Stay();
-                        resultManager.ShowResult(scoreCount.Value, placeList, stageData);
+                        this.CallWaitForSeconds(1f, () =>
+                        {
+                            resultManager.ShowResult(scoreCount.Value, placeList, stageData);
+                        });
                         break;
                     case GameState.Failure:
                         break;
diff --git a/popcorn/Assets/MyGame/Scenes/MiniGame/Scripts/Player.cs b/popcorn/Assets/MyGame/Scenes/MiniGame/Scripts/Player.cs
index d059c26a..3ffa24ae 100644
--- a/popcorn/Assets/MyGame/Scenes/MiniGame/Scripts/Player.cs
+++ b/popcorn/Assets/MyGame/Scenes/MiniGame/Scripts/Player.cs
@@ -62,6 +62,7 @@ namespace MyGame.Scenes.MiniGame.Scripts
                 return;
             }
 
+            SoundManager.Instance.PlaySE("se_minigame_Jump");
             animator?.Play("Brother_pink_jump");
             isJump = true;
             jumpCoroutine = this.CallLerp(jumpTime, t =>
@@ -80,6 +81,7 @@ namespace MyGame.Scenes.MiniGame.Scripts
             {
                 return;
             }
+            SoundManager.Instance.PlaySE("se_minigame_Collide");
             animator?.Play("Brother_pink_FallDown");
             isPreHit = true;
             hitDisposable?.Dispose();
@@ -93,6 +95,7 @@ namespace MyGame.Scenes.MiniGame.Scripts
             }, () =>
             {
                 isJump = false;
+                SoundManager.Instance.PlaySE("se_minigame_FallDown");
                 this.CallLerp(hitTime, t =>
                 {
                 }, () =>
@@ -110,6 +113,7 @@ namespace MyGame.Scenes.MiniGame.Scripts
 
         public void AddCount()
         {
+            SoundManager.Instance.PlaySE("se_minigame_ItemGet");
             count++;
             UpdateCount();
         }
diff --git a/popcorn/Assets/MyGame/Scenes/MiniGame/Scripts/ResultManager.cs b/popcorn/Assets/MyGame/Scenes/MiniGame/Scripts/ResultManager.cs
index e94559c0..eed1a092 100644
--- a/popcorn/Assets/MyGame/Scenes/MiniGame/Scripts/ResultManager.cs
+++ b/popcorn/Assets/MyGame/Scenes/MiniGame/Scripts/ResultManager.cs
@@ -37,6 +37,7 @@ namespace MyGame.Scenes.MiniGame.Scripts
 
         public void ShowResult(int score, ScrollGamePlaceData[] placeList, ScrollGameStageData stageData)
         {
+            SoundManager.Instance.ChangeVolumeUniqueBGM(.3f);
             var gameData = GameDataManager.GameData;
             var shopDataList = SpreadsheetDataManager.Instance.GetBaseDataList<ShopData>(Const.ShopDataSheet);