diff --git a/Assets/02.Scripts/ProjectileController.cs b/Assets/02.Scripts/ProjectileController.cs
index 0ef273f93..48e7b62f3 100644
--- a/Assets/02.Scripts/ProjectileController.cs
+++ b/Assets/02.Scripts/ProjectileController.cs
@@ -108,6 +108,12 @@ namespace BlueWater
 
             // transform.position = raycastHit.point + raycastHit.normal * _collideOffset;
             var hitCollider = _hitColliders[0];
+            if (hitCollider.gameObject.layer == LayerMask.NameToLayer("Props")
+                && !hitCollider.CompareTag("DamageableProps"))
+            {
+                return;
+            }
+            
             var trailParticles = GetComponentsInChildren<ParticleSystem>();
             foreach (var element in trailParticles)
             {
diff --git a/Assets/02.Scripts/Prop/Rockfall.cs b/Assets/02.Scripts/Prop/Rockfall.cs
index 86ea13b65..7f5bfaedd 100644
--- a/Assets/02.Scripts/Prop/Rockfall.cs
+++ b/Assets/02.Scripts/Prop/Rockfall.cs
@@ -61,7 +61,7 @@ namespace BlueWater
 
         private IEnumerator Start()
         {
-            _visualLook.SetActive(false);
+            //_visualLook.SetActive(false);
             _sphereCollider.enabled = false;
             _startPosition = transform.position;
             SpawnLocation = MapManager.Instance.SandMoleMapController.ParticleInstanceLocation;
@@ -85,45 +85,62 @@ namespace BlueWater
                     var fillValue = Mathf.Lerp(0f, 1f, time);
                     _indicator.material.SetFloat(_fillHash, fillValue);
                 }
-                //transform.position = Vector3.Lerp(_startPosition, _endPosition, time);
+                
+                // TODO : 가끔씩 공중에서 멈추는 경우?
+                if (_isAcceleratedFall)
+                {
+                    var distance = Vector3.Distance(_startPosition, _endPosition);
+                    var acceleration = 2 * distance / (_fallTime * _fallTime); // a = 2d / t^2
+                    var displacement = 0.5f * acceleration * elapsedTime * elapsedTime;
+                    var progress = displacement / distance;
+                    transform.position = Vector3.Lerp(_startPosition, _endPosition, progress);
+                }
+                else
+                {
+                    transform.position = Vector3.Lerp(_startPosition, _endPosition, time);
+                }
+                
                 elapsedTime += Time.deltaTime;
                 
                 yield return null;
             }
-            
+
+            transform.position = _endPosition;
             _indicator.material.SetFloat(_fillHash, 1f);
             HideIndicator();
-            _visualLook.SetActive(true);
+            //_visualLook.SetActive(true);
 
-            if (_isAcceleratedFall)
-            {
-                var distance = Vector3.Distance(_startPosition, _endPosition);
-                var acceleration = 2 * distance / (_fallTime * _fallTime); // a = 2d / t^2
-                elapsedTime = 0f;
-
-                while (elapsedTime <= _fallTime)
-                {
-                    var time = elapsedTime;
-                    var displacement = 0.5f * acceleration * time * time;
-                    var progress = displacement / distance;
-                    transform.position = Vector3.Lerp(_startPosition, _endPosition, progress);
-                    elapsedTime += Time.deltaTime;
-
-                    yield return null;
-                }
-            }
-            else
-            {
-                elapsedTime = 0f;
-                while (elapsedTime <= _fallTime)
-                {
-                    var time = elapsedTime / _fallTime;
-                    transform.position = Vector3.Lerp(_startPosition, _endPosition, time);
-                    elapsedTime += Time.deltaTime;
-                    
-                    yield return null;
-                }
-            }
+            // if (_isAcceleratedFall)
+            // {
+            //     var distance = Vector3.Distance(_startPosition, _endPosition);
+            //     var acceleration = 2 * distance / (_fallTime * _fallTime); // a = 2d / t^2
+            //     elapsedTime = 0f;
+            //
+            //     while (elapsedTime <= _fallTime)
+            //     {
+            //         var time = elapsedTime;
+            //         var displacement = 0.5f * acceleration * time * time;
+            //         var progress = displacement / distance;
+            //         transform.position = Vector3.Lerp(_startPosition, _endPosition, progress);
+            //         elapsedTime += Time.deltaTime;
+            //
+            //         yield return null;
+            //     }
+            // }
+            // else
+            // {
+            //     elapsedTime = 0f;
+            //     while (elapsedTime <= _fallTime)
+            //     {
+            //         var time = elapsedTime / _fallTime;
+            //         transform.position = Vector3.Lerp(_startPosition, _endPosition, time);
+            //         elapsedTime += Time.deltaTime;
+            //         
+            //         yield return null;
+            //     }
+            // }
+            //
+            // transform.position = _endPosition;
             
             if (!string.IsNullOrEmpty(_groundCrashSfxName))
             {
diff --git a/Assets/05.Prefabs/Props/DamageableProps/BaseDamageableProps.prefab b/Assets/05.Prefabs/Props/DamageableProps/BaseDamageableProps.prefab
index 205c001bd..3d7614a66 100644
--- a/Assets/05.Prefabs/Props/DamageableProps/BaseDamageableProps.prefab
+++ b/Assets/05.Prefabs/Props/DamageableProps/BaseDamageableProps.prefab
@@ -58,9 +58,9 @@ Rigidbody:
   m_ImplicitTensor: 1
   m_UseGravity: 1
   m_IsKinematic: 0
-  m_Interpolate: 1
+  m_Interpolate: 0
   m_Constraints: 112
-  m_CollisionDetection: 2
+  m_CollisionDetection: 0
 --- !u!135 &1772409705626034443
 SphereCollider:
   m_ObjectHideFlags: 0
diff --git a/Assets/05.Prefabs/Props/DamageableProps/Rockfall.prefab b/Assets/05.Prefabs/Props/DamageableProps/Rockfall.prefab
index fd82d2b22..54138fe2a 100644
--- a/Assets/05.Prefabs/Props/DamageableProps/Rockfall.prefab
+++ b/Assets/05.Prefabs/Props/DamageableProps/Rockfall.prefab
@@ -309,8 +309,8 @@ MonoBehaviour:
   _groundLayer:
     serializedVersion: 2
     m_Bits: 64
-  _indicatorTime: 0.5
-  _fallTime: 0.5
+  _indicatorTime: 0.8
+  _fallTime: 0.8
   _attackDamage: 1
   _isAcceleratedFall: 1
   _groundCrashSfxName: