diff --git a/leenkx/Sources/leenkx/trait/physics/bullet/PhysicsWorld.hx b/leenkx/Sources/leenkx/trait/physics/bullet/PhysicsWorld.hx
index d845a29a..214a349a 100644
--- a/leenkx/Sources/leenkx/trait/physics/bullet/PhysicsWorld.hx
+++ b/leenkx/Sources/leenkx/trait/physics/bullet/PhysicsWorld.hx
@@ -7,6 +7,7 @@ import iron.system.Time;
 import iron.math.Vec4;
 import iron.math.Quat;
 import iron.math.RayCaster;
+import iron.object.Object;
 
 class Hit {
 
@@ -72,6 +73,10 @@ class PhysicsWorld extends Trait {
 	public var convexHitNormalWorld = new Vec4();
 	var pairCache: Bool = false;
 
+	// Performance optimization: Global RigidBody trait cache
+	public static var rigidBodyCache: Map<Object, RigidBody> = new Map();
+	public static var cacheObjectRefs: Map<Object, Int> = new Map(); // Track trait counts
+
 	static var nullvec = true;
 	static var vec1: bullet.Bt.Vector3 = null;
 	static var vec2: bullet.Bt.Vector3 = null;
@@ -148,6 +153,33 @@ class PhysicsWorld extends Trait {
 		});
 	}
 
+
+	public static function getCachedRigidBody(object: Object): RigidBody {
+		if (object == null) return null;
+		
+		var shouldUpdate = false;
+		var cachedTraitCount = cacheObjectRefs.get(object);
+		
+		if (cachedTraitCount == null || cachedTraitCount != object.traits.length) {
+			shouldUpdate = true;
+		} else if (rigidBodyCache.get(object) == null) {
+			var rb = object.getTrait(RigidBody);
+			if (rb != null) shouldUpdate = true;
+		}
+		
+		if (shouldUpdate) {
+			var rb = object.getTrait(RigidBody);
+			rigidBodyCache.set(object, rb);
+			cacheObjectRefs.set(object, object.traits.length);
+		}
+		
+		return rigidBodyCache.get(object);
+	}
+
+	public static inline function hasContactWith(contacts: Array<RigidBody>, target: RigidBody): Bool {
+		return contacts != null && target != null && contacts.indexOf(target) >= 0;
+	}
+
 	public function reset() {
 		for (rb in active.rbMap) removeRigidBody(rb);
 	}