diff --git a/Engine.Core/Abstract/IBehaviourController.cs b/Engine.Core/Abstract/IBehaviourController.cs
index 3fe1e3a..5de1ea3 100644
--- a/Engine.Core/Abstract/IBehaviourController.cs
+++ b/Engine.Core/Abstract/IBehaviourController.cs
@@ -5,7 +5,7 @@ namespace Syntriax.Engine.Core;
 /// <summary>
 /// Represents a controller for managing <see cref="IBehaviour"/>s. Connected to an <see cref="IUniverseObject"/>.
 /// </summary>
-public interface IBehaviourController : IEntity, IHasUniverseObject, IEnumerable<IBehaviour>
+public interface IBehaviourController : IEntity, IHasUniverseObject
 {
     /// <summary>
     /// Event triggered when a <see cref="IBehaviour"/> is added to the <see cref="IBehaviourController"/>.
@@ -17,6 +17,16 @@ public interface IBehaviourController : IEntity, IHasUniverseObject, IEnumerable
     /// </summary>
     event BehaviourRemovedEventHandler? OnBehaviourRemoved;
 
+    /// <summary>
+    /// Amount of <see cref="IBehaviour"/> collected.
+    /// </summary>
+    int Count { get; }
+
+    /// <summary>
+    /// Get a <see cref="IBehaviour"/> collected by it's index.
+    /// </summary>
+    IBehaviour this[System.Index index] { get; }
+
     /// <summary>
     /// Adds a <see cref="IBehaviour"/> to the <see cref="IBehaviourController"/>.
     /// </summary>
diff --git a/Engine.Core/ActiveBehaviourCollector.cs b/Engine.Core/ActiveBehaviourCollector.cs
index 3ab81dd..410feea 100644
--- a/Engine.Core/ActiveBehaviourCollector.cs
+++ b/Engine.Core/ActiveBehaviourCollector.cs
@@ -25,8 +25,8 @@ public class ActiveBehaviourCollector<T> : IBehaviourCollector<T> where T : clas
         universeObject.BehaviourController.OnBehaviourAdded += OnBehaviourAdded;
         universeObject.BehaviourController.OnBehaviourRemoved += OnBehaviourRemoved;
 
-        foreach (IBehaviour item in universeObject.BehaviourController)
-            OnBehaviourAdded(universeObject.BehaviourController, item);
+        for (int i = 0; i < universeObject.BehaviourController.Count; i++)
+            OnBehaviourAdded(universeObject.BehaviourController, universeObject.BehaviourController[i]);
     }
 
     private void OnUniverseObjectUnregistered(IUniverse manager, IUniverseObject universeObject)
@@ -34,8 +34,8 @@ public class ActiveBehaviourCollector<T> : IBehaviourCollector<T> where T : clas
         universeObject.BehaviourController.OnBehaviourAdded -= OnBehaviourAdded;
         universeObject.BehaviourController.OnBehaviourRemoved -= OnBehaviourRemoved;
 
-        foreach (IBehaviour item in universeObject.BehaviourController)
-            OnBehaviourRemoved(universeObject.BehaviourController, item);
+        for (int i = 0; i < universeObject.BehaviourController.Count; i++)
+            OnBehaviourRemoved(universeObject.BehaviourController, universeObject.BehaviourController[i]);
     }
 
     protected virtual void OnBehaviourAdd(IBehaviour behaviour) { }
diff --git a/Engine.Core/BehaviourCollector.cs b/Engine.Core/BehaviourCollector.cs
index 6075ec5..7869237 100644
--- a/Engine.Core/BehaviourCollector.cs
+++ b/Engine.Core/BehaviourCollector.cs
@@ -23,8 +23,8 @@ public class BehaviourCollector<T> : IBehaviourCollector<T> where T : class
         universeObject.BehaviourController.OnBehaviourAdded += OnBehaviourAdded;
         universeObject.BehaviourController.OnBehaviourRemoved += OnBehaviourRemoved;
 
-        foreach (IBehaviour item in universeObject.BehaviourController)
-            OnBehaviourAdded(universeObject.BehaviourController, item);
+        for (int i = 0; i < universeObject.BehaviourController.Count; i++)
+            OnBehaviourAdded(universeObject.BehaviourController, universeObject.BehaviourController[i]);
     }
 
     private void OnUniverseObjectUnregistered(IUniverse manager, IUniverseObject universeObject)
@@ -32,8 +32,8 @@ public class BehaviourCollector<T> : IBehaviourCollector<T> where T : class
         universeObject.BehaviourController.OnBehaviourAdded -= OnBehaviourAdded;
         universeObject.BehaviourController.OnBehaviourRemoved -= OnBehaviourRemoved;
 
-        foreach (IBehaviour item in universeObject.BehaviourController)
-            OnBehaviourRemoved(universeObject.BehaviourController, item);
+        for (int i = 0; i < universeObject.BehaviourController.Count; i++)
+            OnBehaviourRemoved(universeObject.BehaviourController, universeObject.BehaviourController[i]);
     }
 
     protected virtual void OnBehaviourAdd(IBehaviour behaviour) { }
diff --git a/Engine.Core/BehaviourController.cs b/Engine.Core/BehaviourController.cs
index ac4ca34..bbf1b8a 100644
--- a/Engine.Core/BehaviourController.cs
+++ b/Engine.Core/BehaviourController.cs
@@ -17,6 +17,8 @@ public class BehaviourController : BaseEntity, IBehaviourController
     private IUniverseObject _universeObject = null!;
 
     public IUniverseObject UniverseObject => _universeObject;
+    public int Count => behaviours.Count;
+    public IBehaviour this[Index index] => behaviours[index];
 
     public T AddBehaviour<T>(T behaviour) where T : class, IBehaviour
     {
@@ -149,7 +151,4 @@ public class BehaviourController : BaseEntity, IBehaviourController
         behaviours.Remove(sender);
         InsertBehaviourByPriority(sender);
     }
-
-    public IEnumerator<IBehaviour> GetEnumerator() => behaviours.GetEnumerator();
-    IEnumerator IEnumerable.GetEnumerator() => behaviours.GetEnumerator();
 }