Truth be told, he figured it was more complicated than a simple hearing enhancement.  However, he also had the wit to know that it was probably more complicated than that.<br/><br/>"Very impressive.  A fitting talent for someone destined for greatness." He took a little time to think it over before shrugging his shoulders.  "As long as someone is testing my defenses and my reactions, I invariably will benefit from it  Perhaps both of you trying to attack me at once will be a better test than one person alone; one's guard is rarely tested fairly by one foe."<br/><br/>The fairness of being attacked by a puppet larger than him was questionable, but he could trust Makoto to come to his defense if Kasumi went too far (on purpose or otherwise).  Besides, he also knew better to yield than to push himself to unconsciousness.  This was not the field; there was no reason for him to risk his life here.