diff --git a/Assets/Scripts/Effects.meta b/Assets/Scripts/Effects.meta
new file mode 100644
index 00000000..c5f59211
--- /dev/null
+++ b/Assets/Scripts/Effects.meta
@@ -0,0 +1,8 @@
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+  externalObjects: {}
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diff --git a/Assets/Scripts/Effects/VictoryEffect.cs b/Assets/Scripts/Effects/VictoryEffect.cs
new file mode 100644
index 00000000..835efc94
--- /dev/null
+++ b/Assets/Scripts/Effects/VictoryEffect.cs
@@ -0,0 +1,187 @@
+using System.Collections;
+using UnityEngine;
+using Colosseum.Enemy;
+
+namespace Colosseum.Effects
+{
+    /// <summary>
+    /// 보스 승리 연출 이펙트.
+    /// 보스 사망 시 카메라 연출, 이펙트, 슬로우 모션 등을 처리합니다.
+    /// GameManager에 의해 활성화됩니다.
+    /// </summary>
+    public class VictoryEffect : MonoBehaviour
+    {
+        [Header("Victory Settings")]
+        [Tooltip("승리 시 슬로우 모션 배율")]
+        [SerializeField] private float slowMotionScale = 0.3f;
+
+        [Tooltip("슬로우 모션 지속 시간")]
+        [SerializeField] private float slowMotionDuration = 2f;
+
+        [Header("Effects")]
+        [Tooltip("승리 시 생성할 이펙트 프리팹")]
+        [SerializeField] private GameObject victoryEffectPrefab;
+
+        [Tooltip("이펙트 생성 위치 오프셋")]
+        [SerializeField] private Vector3 effectOffset = Vector3.up * 2f;
+
+        [Header("Audio")]
+        [Tooltip("승리 사운드")]
+        [SerializeField] private AudioClip victorySound;
+
+        [Tooltip("사운드 볼륨")]
+        [SerializeField] private float soundVolume = 1f;
+
+        [Header("Debug")]
+        [SerializeField] private bool debugMode = true;
+
+        // 상태
+        private bool isPlaying = false;
+        private float originalTimeScale;
+        private Camera mainCamera;
+
+        private void Awake()
+        {
+            mainCamera = Camera.main;
+        }
+
+        private void OnEnable()
+        {
+            PlayVictoryEffect();
+        }
+
+        private void OnDisable()
+        {
+            // 시간 스케일 복구
+            if (isPlaying)
+            {
+                Time.timeScale = 1f;
+                isPlaying = false;
+            }
+        }
+
+        /// <summary>
+        /// 승리 연출 재생
+        /// </summary>
+        public void PlayVictoryEffect()
+        {
+            if (isPlaying) return;
+
+            StartCoroutine(VictorySequence());
+        }
+
+        private IEnumerator VictorySequence()
+        {
+            isPlaying = true;
+            originalTimeScale = Time.timeScale;
+
+            if (debugMode)
+            {
+                Debug.Log("[VictoryEffect] Starting victory sequence");
+            }
+
+            // 1. 슬로우 모션
+            yield return StartCoroutine(PlaySlowMotion());
+
+            // 2. 카메라 연출
+            yield return StartCoroutine(PlayCameraEffect());
+
+            // 3. 이펙트 생성
+            SpawnVictoryEffect();
+
+            // 4. 사운드 재생
+            PlayVictorySound();
+
+            // 5. 시간 복구
+            Time.timeScale = originalTimeScale;
+            isPlaying = false;
+
+            if (debugMode)
+            {
+                Debug.Log("[VictoryEffect] Victory sequence complete");
+            }
+        }
+
+        private IEnumerator PlaySlowMotion()
+        {
+            float elapsed = 0f;
+
+            while (elapsed < slowMotionDuration)
+            {
+                elapsed += Time.unscaledDeltaTime;
+                float t = elapsed / slowMotionDuration;
+
+                // 처음에는 슬로우, 나중에는 복구
+                if (t < 0.5f)
+                {
+                    Time.timeScale = Mathf.Lerp(originalTimeScale, slowMotionScale, t * 2f);
+                }
+                else
+                {
+                    Time.timeScale = Mathf.Lerp(slowMotionScale, originalTimeScale, (t - 0.5f) * 2f);
+                }
+
+                yield return null;
+            }
+
+            Time.timeScale = slowMotionScale;
+        }
+
+        private IEnumerator PlayCameraEffect()
+        {
+            if (mainCamera == null || BossEnemy.ActiveBoss == null)
+                yield break;
+
+            // 보스 위치로 카메라 이동
+            Transform bossTransform = BossEnemy.ActiveBoss.transform;
+            Vector3 targetPosition = bossTransform.position + effectOffset;
+
+            float elapsed = 0f;
+            float duration = slowMotionDuration * 0.5f;
+
+            while (elapsed < duration)
+            {
+                elapsed += Time.unscaledDeltaTime;
+
+                // 카메라가 보스를 바라보도록
+                mainCamera.transform.LookAt(targetPosition);
+
+                yield return null;
+            }
+        }
+
+        private void SpawnVictoryEffect()
+        {
+            if (victoryEffectPrefab == null) return;
+
+            Vector3 spawnPosition = transform.position + effectOffset;
+
+            if (BossEnemy.ActiveBoss != null)
+            {
+                spawnPosition = BossEnemy.ActiveBoss.transform.position + effectOffset;
+            }
+
+            var effect = Instantiate(victoryEffectPrefab, spawnPosition, Quaternion.identity);
+
+            // 일정 시간 후 제거
+            Destroy(effect, 5f);
+
+            if (debugMode)
+            {
+                Debug.Log("[VictoryEffect] Spawned victory effect");
+            }
+        }
+
+        private void PlayVictorySound()
+        {
+            if (victorySound == null) return;
+
+            AudioSource.PlayClipAtPoint(victorySound, transform.position, soundVolume);
+
+            if (debugMode)
+            {
+                Debug.Log("[VictoryEffect] Played victory sound");
+            }
+        }
+    }
+}
diff --git a/Assets/Scripts/Effects/VictoryEffect.cs.meta b/Assets/Scripts/Effects/VictoryEffect.cs.meta
new file mode 100644
index 00000000..a5297340
--- /dev/null
+++ b/Assets/Scripts/Effects/VictoryEffect.cs.meta
@@ -0,0 +1,2 @@
+fileFormatVersion: 2
+guid: b7cbb78d0cea7014ba69a25271583954
\ No newline at end of file
diff --git a/Assets/Scripts/UI/GameOverUI.cs b/Assets/Scripts/UI/GameOverUI.cs
new file mode 100644
index 00000000..48f87212
--- /dev/null
+++ b/Assets/Scripts/UI/GameOverUI.cs
@@ -0,0 +1,59 @@
+using UnityEngine;
+using UnityEngine.UI;
+using TMPro;
+
+namespace Colosseum.UI
+{
+    /// <summary>
+    /// 게임 오버 UI 컨트롤러.
+    /// GameManager에 의해 활성화/비활성화됩니다.
+    /// </summary>
+    public class GameOverUI : MonoBehaviour
+    {
+        [Header("UI References")]
+        [Tooltip("게임 오버 텍스트")]
+        [SerializeField] private TMP_Text gameOverText;
+
+        [Tooltip("재시작 카운트다운 텍스트")]
+        [SerializeField] private TMP_Text countdownText;
+
+        [Tooltip("게임 오버 애니메이터")]
+        [SerializeField] private Animator animator;
+
+        [Header("Settings")]
+        [Tooltip("게임 오버 텍스트")]
+        [SerializeField] private string gameOverMessage = "GAME OVER";
+
+        [Tooltip("텍스트 색상")]
+        [SerializeField] private Color textColor = Color.red;
+
+        private void Start()
+        {
+            if (gameOverText != null)
+            {
+                gameOverText.text = gameOverMessage;
+                gameOverText.color = textColor;
+            }
+        }
+
+        private void OnEnable()
+        {
+            // 애니메이션 재생
+            if (animator != null)
+            {
+                animator.SetTrigger("Show");
+            }
+        }
+
+        /// <summary>
+        /// 카운트다운 텍스트 업데이트
+        /// </summary>
+        public void UpdateCountdown(int seconds)
+        {
+            if (countdownText != null)
+            {
+                countdownText.text = $"Restarting in {seconds}...";
+            }
+        }
+    }
+}
diff --git a/Assets/Scripts/UI/GameOverUI.cs.meta b/Assets/Scripts/UI/GameOverUI.cs.meta
new file mode 100644
index 00000000..80c30e1d
--- /dev/null
+++ b/Assets/Scripts/UI/GameOverUI.cs.meta
@@ -0,0 +1,2 @@
+fileFormatVersion: 2
+guid: f87daf25f7fc5c4499b66d327b6c4cf2
\ No newline at end of file
diff --git a/Assets/Scripts/UI/VictoryUI.cs b/Assets/Scripts/UI/VictoryUI.cs
new file mode 100644
index 00000000..42b601c0
--- /dev/null
+++ b/Assets/Scripts/UI/VictoryUI.cs
@@ -0,0 +1,55 @@
+using UnityEngine;
+using UnityEngine.UI;
+using TMPro;
+using Colosseum.Enemy;
+
+namespace Colosseum.UI
+{
+    /// <summary>
+    /// 승리 UI 컨트롤러.
+    /// GameManager에 의해 활성화/비활성화됩니다.
+    /// </summary>
+    public class VictoryUI : MonoBehaviour
+    {
+        [Header("UI References")]
+        [Tooltip("승리 텍스트")]
+        [SerializeField] private TMP_Text victoryText;
+
+        [Tooltip("보스 이름 텍스트")]
+        [SerializeField] private TMP_Text bossNameText;
+
+        [Tooltip("승리 애니메이터")]
+        [SerializeField] private Animator animator;
+
+        [Header("Settings")]
+        [Tooltip("승리 텍스트")]
+        [SerializeField] private string victoryMessage = "VICTORY!";
+
+        [Tooltip("텍스트 색상")]
+        [SerializeField] private Color textColor = Color.yellow;
+
+        private void Start()
+        {
+            if (victoryText != null)
+            {
+                victoryText.text = victoryMessage;
+                victoryText.color = textColor;
+            }
+        }
+
+        private void OnEnable()
+        {
+            // 보스 이름 표시
+            if (bossNameText != null && BossEnemy.ActiveBoss != null)
+            {
+                bossNameText.text = $"{BossEnemy.ActiveBoss.name} Defeated!";
+            }
+
+            // 애니메이션 재생
+            if (animator != null)
+            {
+                animator.SetTrigger("Show");
+            }
+        }
+    }
+}
diff --git a/Assets/Scripts/UI/VictoryUI.cs.meta b/Assets/Scripts/UI/VictoryUI.cs.meta
new file mode 100644
index 00000000..5d7833ee
--- /dev/null
+++ b/Assets/Scripts/UI/VictoryUI.cs.meta
@@ -0,0 +1,2 @@
+fileFormatVersion: 2
+guid: 514ff17abf102744faf81dbad1251d86
\ No newline at end of file