Silent, Error404 prefers to show his true intentions at first, no longer having much of a reason to hide them. A master manipulator, he has developed so much to the point he can perfect a poker face. At first glance, Error404 comes off as a sociopathic experimenter, working in the background to deal with everything he considers a bother. The slightest grudge, he'll take the most exaggerated response. A permanent solution to a temporary problem.