diff --git a/DangerousD/GameCore/GameObjects/GameObject.cs b/DangerousD/GameCore/GameObjects/GameObject.cs
index a29eb79..078a850 100644
--- a/DangerousD/GameCore/GameObjects/GameObject.cs
+++ b/DangerousD/GameCore/GameObjects/GameObject.cs
@@ -30,7 +30,7 @@ namespace DangerousD.GameCore
             AppManager.Instance.GameManager.Register(this);
         }
 
-        public virtual void OnCollision()
+        public virtual void OnCollision(GameObject gameObject)
         {
         }
 
diff --git a/DangerousD/GameCore/Managers/PhysicsManager.cs b/DangerousD/GameCore/Managers/PhysicsManager.cs
index 19c84ad..8fc47c0 100644
--- a/DangerousD/GameCore/Managers/PhysicsManager.cs
+++ b/DangerousD/GameCore/Managers/PhysicsManager.cs
@@ -108,8 +108,8 @@ namespace DangerousD.GameCore.Managers
                 {
                     if (livingEntities[j].Rectangle.Intersects(entities[i].Rectangle))
                     {
-                        livingEntities[j].OnCollision();
-                        entities[i].OnCollision();
+                        livingEntities[j].OnCollision(entities[i]);
+                        entities[i].OnCollision(livingEntities[j]);
                     }
                 }
             }
@@ -123,8 +123,8 @@ namespace DangerousD.GameCore.Managers
                 {
                     if (livingEntities[i].Rectangle.Intersects(livingEntities[j].Rectangle))
                     {
-                        livingEntities[i].OnCollision();
-                        livingEntities[j].OnCollision();
+                        livingEntities[i].OnCollision(livingEntities[j]);
+                        livingEntities[j].OnCollision(livingEntities[i]);
                     }
                 }
             }