Koko's most notable characteristic is his sixth sense. On the surface, his actions are not that extraordinary; they are things that any energetic and healthy cat might do from time to time. He might dig up small pieces of evidence, for instance, or point something out to Qwilleran by acting extremely attracted to it. He has also been known to use seemingly random yowls or body language to communicate things, especially when a death is caused by foul play: he has both a "death howl" and a unique "death dance". Sometimes Qwilleran does not immediately recognize the significance of Koko's actions, and sometimes will not recognize them at all (if they occur before Qwill has the slightest idea of any misdemeanor), at least not until the case has been solved. He also seems to have the power to trigger certain important events, such as causing a blackout by sitting in the middle of a pyramid. During the several occasions in which Qwill's life has been threatened, Koko has come to his aid and been instrumental in the defeat of Qwill's assailant. Koko's action made him famous among members of The Press Club in the city, where he received an official membership signed by the Chief of Police.