diff --git a/Engine.Core/Abstract/IBehaviourCollector.cs b/Engine.Core/Abstract/IBehaviourCollector.cs
index 51cc16a..9c2ecc9 100644
--- a/Engine.Core/Abstract/IBehaviourCollector.cs
+++ b/Engine.Core/Abstract/IBehaviourCollector.cs
@@ -7,7 +7,7 @@ namespace Syntriax.Engine.Core;
 /// Provides mechanisms for tracking additions and removals, and notifies subscribers when such events occur on the assigned <see cref="IUniverse"/>.
 /// </summary>
 /// <typeparam name="T">The type of objects tracked by the collector.</typeparam>
-public interface IBehaviourCollector<T> : IHasUniverse, IEnumerable<T> where T : class
+public interface IBehaviourCollector<T> : IHasUniverse where T : class
 {
     /// <summary>
     /// Event triggered when an object of type <typeparamref name="T"/> is added to the collector.
diff --git a/Engine.Core/ActiveBehaviourCollector.cs b/Engine.Core/ActiveBehaviourCollector.cs
index 612c29b..3b16125 100644
--- a/Engine.Core/ActiveBehaviourCollector.cs
+++ b/Engine.Core/ActiveBehaviourCollector.cs
@@ -19,8 +19,6 @@ public class ActiveBehaviourCollector<T> : IBehaviourCollector<T> where T : clas
     public IReadOnlyList<T> Behaviours => activeBehaviours;
     public IUniverse Universe { get; private set; } = null!;
 
-    public T this[Index index] => activeBehaviours[index];
-
     public ActiveBehaviourCollector() { }
     public ActiveBehaviourCollector(IUniverse universe) => Assign(universe);
 
@@ -119,7 +117,4 @@ public class ActiveBehaviourCollector<T> : IBehaviourCollector<T> where T : clas
         OnUnassigned?.Invoke(this);
         return true;
     }
-
-    public IEnumerator<T> GetEnumerator() => activeBehaviours.GetEnumerator();
-    IEnumerator IEnumerable.GetEnumerator() => activeBehaviours.GetEnumerator();
 }
diff --git a/Engine.Core/BehaviourCollector.cs b/Engine.Core/BehaviourCollector.cs
index a728bbb..84da28a 100644
--- a/Engine.Core/BehaviourCollector.cs
+++ b/Engine.Core/BehaviourCollector.cs
@@ -17,8 +17,6 @@ public class BehaviourCollector<T> : IBehaviourCollector<T> where T : class
     public IReadOnlyList<T> Behaviours => behaviours;
     public IUniverse Universe { get; private set; } = null!;
 
-    public T this[Index index] => behaviours[index];
-
     public BehaviourCollector() { }
     public BehaviourCollector(IUniverse universe) => Assign(universe);
 
@@ -98,7 +96,4 @@ public class BehaviourCollector<T> : IBehaviourCollector<T> where T : class
         OnUnassigned?.Invoke(this);
         return true;
     }
-
-    public IEnumerator<T> GetEnumerator() => behaviours.GetEnumerator();
-    IEnumerator IEnumerable.GetEnumerator() => behaviours.GetEnumerator();
 }