diff --git a/Assets/01_Scenes/WhaleAdventure_VR/Rooms/CatsRoom.unity b/Assets/01_Scenes/WhaleAdventure_VR/Rooms/CatsRoom.unity
index e2d3f78e..771dbefd 100644
--- a/Assets/01_Scenes/WhaleAdventure_VR/Rooms/CatsRoom.unity
+++ b/Assets/01_Scenes/WhaleAdventure_VR/Rooms/CatsRoom.unity
@@ -1,3 +1,3 @@
 version https://git-lfs.github.com/spec/v1
-oid sha256:76e69faebfad2fa3c8c6740c4598192b39e2cc7262cc2f85488433958ee7c763
-size 1997430
+oid sha256:bf233d545596bc310da144b6a8935ddbd486528e791c1431adee908a17901b24
+size 2042631
diff --git a/Assets/02_Scripts/Managers/CatsRoom/RhythmManager.cs b/Assets/02_Scripts/Managers/CatsRoom/RhythmManager.cs
index 76ab64aa..881c40d4 100644
--- a/Assets/02_Scripts/Managers/CatsRoom/RhythmManager.cs
+++ b/Assets/02_Scripts/Managers/CatsRoom/RhythmManager.cs
@@ -17,6 +17,8 @@ public class RhythmManager : MonoBehaviour
     [SerializeField] private float _goodWindow = 0.10f;
     [SerializeField] private float _badWindow = 0.15f;   // 이 밖이면 입력 무시(헛침)
 
+    [SerializeField] private GameObject StartButtonObj;
+
     public float SongTime => _audioSource.time;   // 모든 타이밍의 기준
 
     private List<Note> SongNoteList;
@@ -25,6 +27,14 @@ public class RhythmManager : MonoBehaviour
     private Func<float> _songTimeProvider;   // 노트에 넘길 시간 제공자 (매 스폰마다 람다 재생성 방지용 캐시)
     private readonly List<RhythmNoteInstance> _activeNotes = new();  // 화면에 떠 있는(아직 처리 안 된) 노트들
 
+    // 점수 상태 (HUD가 읽음). 누적 로직은 RhythmScore가 전담
+    public RhythmScore Score { get; } = new();
+
+    public event Action OnSongStarted;               // 곡 시작 (ScoreHud 표시 / ResultHud 숨김)
+    public event Action<Result> OnJudged;            // 노트 하나가 판정될 때마다 (HUD 연출용)
+    public event Action<RhythmScore> OnScoreChanged; // 점수/콤보가 바뀔 때 (실시간 HUD)
+    public event Action<RhythmScore> OnSongFinished; // 곡이 끝났을 때 (결과창)
+
     private void Awake()
     {
         _songTimeProvider = () => SongTime;   // 한 번만 만들어 모든 노트가 공유
@@ -80,6 +90,11 @@ public void StartSong()
         _nextNoteIndex = 0;
         _activeNotes.Clear();
 
+        Score.Reset();
+        OnSongStarted?.Invoke();         // ScoreHud 표시 / ResultHud 숨김
+        OnScoreChanged?.Invoke(Score);   // HUD 초기화(0점)
+        StartButtonObj.SetActive(false);
+
         _audioSource.Play();
         _isPlaying = true;
 
@@ -90,17 +105,21 @@ public void StartSong()
     // 곡 정지 + 주변음 복구
     public void StopSong()
     {
+        if (!_isPlaying) return;   // 중복 호출 방지(결과창 두 번 뜨는 것 차단)
+
         _audioSource.Stop();
         _isPlaying = false;
 
         if (SoundManager.Instance != null) SoundManager.Instance.ExitMinigameMode();
+
+        OnSongFinished?.Invoke(Score);   // 결과창 표시
     }
 
     // 노트가 판정선을 지나쳐 스스로 Miss 처리될 때 호출 (노트는 이미 자기 파괴됨)
     private void OnNoteMissed(RhythmNoteInstance note)
     {
         _activeNotes.Remove(note);
-        // TODO: 점수/콤보 시스템 연결 시 Miss 반영
+        ApplyJudge(Result.Miss);
         Debug.Log("[Rhythm] Miss (지나침)");
     }
 
@@ -134,10 +153,18 @@ public void OnPlayerInput()
         _activeNotes.Remove(target);
         Destroy(target.gameObject);
 
-        // TODO: 점수/콤보 시스템 연결 시 result 반영
+        ApplyJudge(result);
         Debug.Log($"[Rhythm] {result} (diff {bestDiff:F3}s)");
     }
 
+    // 판정 결과를 점수에 반영하고 이벤트로 알림
+    private void ApplyJudge(Result result)
+    {
+        Score.Apply(result);
+        OnJudged?.Invoke(result);
+        OnScoreChanged?.Invoke(Score);
+    }
+
     // diff = 절대 시간차(초). 윈도우 안이면 Perfect/Good/Bad, 밖이면 Miss(입력 무시)
     public Result Judge(float diff)
     {
diff --git a/Assets/02_Scripts/Rhythm/RhythmScore.cs b/Assets/02_Scripts/Rhythm/RhythmScore.cs
new file mode 100644
index 00000000..77a79c87
--- /dev/null
+++ b/Assets/02_Scripts/Rhythm/RhythmScore.cs
@@ -0,0 +1,59 @@
+// 리듬게임 점수/콤보/판정수 누적 (Unity 비의존 순수 로직 - 테스트하기 쉬움)
+public class RhythmScore
+{
+    // 판정별 기본 점수
+    private const int PerfectPoint = 100;
+    private const int GoodPoint = 50;
+    private const int BadPoint = 10;
+
+    public int Score { get; private set; }
+    public int Combo { get; private set; }
+    public int MaxCombo { get; private set; }
+
+    public int PerfectCount { get; private set; }
+    public int GoodCount { get; private set; }
+    public int BadCount { get; private set; }
+    public int MissCount { get; private set; }
+
+    public int TotalJudged => PerfectCount + GoodCount + BadCount + MissCount;
+
+    // 판정 하나를 점수에 반영
+    public void Apply(Result result)
+    {
+        switch (result)
+        {
+            case Result.Perfect:
+                PerfectCount++;
+                Combo++;
+                Score += PerfectPoint + Combo;   // 콤보가 쌓일수록 보너스 (연속 보상)
+                break;
+            case Result.Good:
+                GoodCount++;
+                Combo++;
+                Score += GoodPoint + Combo;
+                break;
+            case Result.Bad:
+                BadCount++;
+                Combo = 0;                       // 콤보 끊김
+                Score += BadPoint;
+                break;
+            case Result.Miss:
+                MissCount++;
+                Combo = 0;                       // 콤보 끊김
+                break;
+        }
+
+        if (Combo > MaxCombo) MaxCombo = Combo;
+    }
+
+    public void Reset()
+    {
+        Score = 0;
+        Combo = 0;
+        MaxCombo = 0;
+        PerfectCount = 0;
+        GoodCount = 0;
+        BadCount = 0;
+        MissCount = 0;
+    }
+}
diff --git a/Assets/02_Scripts/Rhythm/RhythmScore.cs.meta b/Assets/02_Scripts/Rhythm/RhythmScore.cs.meta
new file mode 100644
index 00000000..2019c883
--- /dev/null
+++ b/Assets/02_Scripts/Rhythm/RhythmScore.cs.meta
@@ -0,0 +1,2 @@
+fileFormatVersion: 2
+guid: adfd55d5980f58940ad4cb735db42f89
\ No newline at end of file
diff --git a/Assets/02_Scripts/UI/RhythmResultHud.cs b/Assets/02_Scripts/UI/RhythmResultHud.cs
new file mode 100644
index 00000000..0a851a0f
--- /dev/null
+++ b/Assets/02_Scripts/UI/RhythmResultHud.cs
@@ -0,0 +1,50 @@
+using TMPro;
+using UnityEngine;
+
+// 곡 종료 후 결과창. 총점/판정수/정확도/등급/최대콤보를 표시한다.
+public class RhythmResultHud : MonoBehaviour
+{
+    [SerializeField] private RhythmManager _manager;
+    [SerializeField] private GameObject _root;        // 결과창 루트
+    [SerializeField] private TMP_Text _scoreText;
+    [SerializeField] private TMP_Text _maxComboText;
+    [SerializeField] private TMP_Text _countText;     // Perfect/Good/Bad/Miss 모아서 표시
+
+    private void Awake()
+    {
+        if (_root != null) _root.SetActive(false);
+    }
+
+    private void OnEnable()
+    {
+        if (_manager == null) return;
+        _manager.OnSongStarted += Hide;
+        _manager.OnSongFinished += Show;
+    }
+
+    private void OnDisable()
+    {
+        if (_manager == null) return;
+        _manager.OnSongStarted -= Hide;
+        _manager.OnSongFinished -= Show;
+    }
+
+    private void Hide()
+    {
+        if (_root != null) _root.SetActive(false);   // 곡 시작/재시작 시 이전 결과창 숨김
+    }
+
+    private void Show(RhythmScore score)
+    {
+        if (_scoreText != null) _scoreText.text = $"{score.Score:N0}";
+        if (_maxComboText != null) _maxComboText.text = $"{score.MaxCombo}";
+        if (_countText != null)
+            _countText.text =
+                $"Perfect  {score.PerfectCount}\n" +
+                $"Good     {score.GoodCount}\n" +
+                $"Bad      {score.BadCount}\n" +
+                $"Miss     {score.MissCount}";
+
+        if (_root != null) _root.SetActive(true);
+    }
+}
diff --git a/Assets/02_Scripts/UI/RhythmResultHud.cs.meta b/Assets/02_Scripts/UI/RhythmResultHud.cs.meta
new file mode 100644
index 00000000..39c6d543
--- /dev/null
+++ b/Assets/02_Scripts/UI/RhythmResultHud.cs.meta
@@ -0,0 +1,2 @@
+fileFormatVersion: 2
+guid: b187e420986956a4ba9407759ed4050f
\ No newline at end of file
diff --git a/Assets/02_Scripts/UI/RhythmScoreHud.cs b/Assets/02_Scripts/UI/RhythmScoreHud.cs
new file mode 100644
index 00000000..f274e190
--- /dev/null
+++ b/Assets/02_Scripts/UI/RhythmScoreHud.cs
@@ -0,0 +1,56 @@
+using TMPro;
+using UnityEngine;
+
+// 플레이 중 실시간 점수/콤보 HUD. RhythmManager 이벤트만 구독하고 표시만 한다.
+public class RhythmScoreHud : MonoBehaviour
+{
+    [SerializeField] private RhythmManager _manager;
+    [SerializeField] private GameObject _root;     // HUD 루트 (곡 시작/종료에 켜고 끔)
+    [SerializeField] private TMP_Text _scoreText;
+    [SerializeField] private TMP_Text _comboText;
+    [SerializeField] private TMP_Text _judgeText;  // Perfect/Good 등 최근 판정 표시(선택)
+
+    private void Awake()
+    {
+        if (_root != null) _root.SetActive(false);   // 곡 시작 전엔 숨김
+    }
+
+    private void OnEnable()
+    {
+        if (_manager == null) return;
+        _manager.OnSongStarted += HandleSongStarted;
+        _manager.OnScoreChanged += HandleScoreChanged;
+        _manager.OnJudged += HandleJudged;
+        _manager.OnSongFinished += HandleSongFinished;
+    }
+
+    private void OnDisable()
+    {
+        if (_manager == null) return;
+        _manager.OnSongStarted -= HandleSongStarted;
+        _manager.OnScoreChanged -= HandleScoreChanged;
+        _manager.OnJudged -= HandleJudged;
+        _manager.OnSongFinished -= HandleSongFinished;
+    }
+
+    private void HandleSongStarted()
+    {
+        if (_root != null) _root.SetActive(true);    // 곡 시작 시 실시간 HUD 표시
+    }
+
+    private void HandleScoreChanged(RhythmScore score)
+    {
+        if (_scoreText != null) _scoreText.text = $"SCORE {score.Score:N0}";
+        if (_comboText != null) _comboText.text = score.Combo > 0 ? $"{score.Combo}" : "";
+    }
+
+    private void HandleJudged(Result result)
+    {
+        if (_judgeText != null) _judgeText.text = result.ToString();
+    }
+
+    private void HandleSongFinished(RhythmScore score)
+    {
+        if (_root != null) _root.SetActive(false);   // 곡 끝나면 실시간 HUD는 숨김(결과창이 대신 뜸)
+    }
+}
diff --git a/Assets/02_Scripts/UI/RhythmScoreHud.cs.meta b/Assets/02_Scripts/UI/RhythmScoreHud.cs.meta
new file mode 100644
index 00000000..124f2dd8
--- /dev/null
+++ b/Assets/02_Scripts/UI/RhythmScoreHud.cs.meta
@@ -0,0 +1,2 @@
+fileFormatVersion: 2
+guid: 2d2c41822c633294a986c6803818303d
\ No newline at end of file