diff --git a/Assets/Prefabs/Towers/BlackHole.prefab b/Assets/Prefabs/Towers/BlackHole.prefab
index 187e565..d07b9ef 100644
--- a/Assets/Prefabs/Towers/BlackHole.prefab
+++ b/Assets/Prefabs/Towers/BlackHole.prefab
@@ -176,6 +176,41 @@ PrefabInstance:
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     m_TransformParent: {fileID: 0}
     m_Modifications:
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       propertyPath: m_LocalPosition.x
@@ -231,6 +266,76 @@ PrefabInstance:
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       value: BlackHole
       objectReference: {fileID: 0}
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     - target: {fileID: 5565472806559733162, guid: f54a14318952c90c5b47a300aedb0d15,
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       propertyPath: m_Size.x
@@ -738,7 +843,10 @@ MonoBehaviour:
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   m_Name: 
   m_EditorClassIdentifier: 
-  selectedUI: {fileID: 0}
+  selectedUI: {fileID: 8306284257086165764}
+  OnAttack:
+    m_PersistentCalls:
+      m_Calls: []
   radius: 1.5
   orb: {fileID: 6791947043022790992}
   affectedBodies:
@@ -768,6 +876,7 @@ MonoBehaviour:
     m_PreInfinity: 2
     m_PostInfinity: 2
     m_RotationOrder: 4
+  audioName: Black Hole
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 Transform:
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@@ -826,6 +935,12 @@ MonoBehaviour:
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diff --git a/Assets/Scenes/TowerTest.unity b/Assets/Scenes/TowerTest.unity
index 7572f5c..1a2964c 100644
--- a/Assets/Scenes/TowerTest.unity
+++ b/Assets/Scenes/TowerTest.unity
@@ -123,6 +123,144 @@ NavMeshSettings:
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       m_Flags: 0
   m_NavMeshData: {fileID: 0}
+--- !u!1001 &100479262
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+      value: 0
+      objectReference: {fileID: 0}
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+      value: 0
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+      value: 0
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+    - target: {fileID: 4611178744751000815, guid: 1d7949721a9f0bc9ba1a8c49ca5fd099,
+        type: 3}
+      propertyPath: m_Name
+      value: BlackHole
+      objectReference: {fileID: 0}
+    m_RemovedComponents: []
+    m_RemovedGameObjects: []
+    m_AddedGameObjects: []
+    m_AddedComponents: []
+  m_SourcePrefab: {fileID: 100100000, guid: 1d7949721a9f0bc9ba1a8c49ca5fd099, type: 3}
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   m_ObjectHideFlags: 0
@@ -1101,7 +1239,7 @@ PrefabInstance:
     - target: {fileID: 645933633211530419, guid: 4e5e3131ea2a78cfd93219be3806da6d,
         type: 3}
       propertyPath: m_IsActive
-      value: 1
+      value: 0
       objectReference: {fileID: 0}
     - target: {fileID: 2897404306948410700, guid: 4e5e3131ea2a78cfd93219be3806da6d,
         type: 3}
@@ -1166,12 +1304,12 @@ PrefabInstance:
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         type: 3}
       propertyPath: m_LocalRotation.y
-      value: -0.000000016282542
+      value: 0.000000016282542
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     - target: {fileID: 4503151795702995559, guid: 4e5e3131ea2a78cfd93219be3806da6d,
         type: 3}
       propertyPath: m_LocalRotation.z
-      value: 0.0000000055622356
+      value: -0.0000000055622356
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@@ -1976,3 +2114,4 @@ SceneRoots:
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   - {fileID: 1090335998}
   - {fileID: 1231481559}
+  - {fileID: 100479262}
diff --git a/Assets/Scripts/Tower/GravityTower.cs b/Assets/Scripts/Tower/GravityTower.cs
index 0f4573c..a024b49 100644
--- a/Assets/Scripts/Tower/GravityTower.cs
+++ b/Assets/Scripts/Tower/GravityTower.cs
@@ -14,6 +14,9 @@ public class GravityTower : Tower
     [SerializeField]
     private AnimationCurve distToAcceleration;
 
+    [SerializeField]
+    private string audioName;
+
     public override void TowerSelected(bool selected)
     {
 
@@ -24,6 +27,17 @@ public class GravityTower : Tower
         base.Awake();
     }
 
+    protected override void Start()
+    {
+        base.Start();
+
+        if (!string.IsNullOrEmpty(audioName))
+        {
+            Debug.Log("play");
+            AudioManager.PlaySound(audioName, transform.position);
+        }
+    }
+
     protected override void FixedUpdate()
     {
         Collider[] projectilesInRadius = Physics.OverlapSphere(orb.position, radius, affectedBodies);