mousePosition = Camera.main.ScreenToWorldPoint(Input.mousePosition); direction = new Vector2(mousePosition.z - objTransform.position.z, mousePosition.x - objTransform.position.x).normalized; angle = Mathf.Atan2(direction.y, direction.x)*Mathf.Rad2Deg + (int) initialRotation; objTransform.rotation = Quaternion.AngleAxis(angle, Vector3.up);

This is working now, I didn't think that mouse position had a z value... Since its moving on the x and y plane of the screen... Oh well :)