Sensei Gray

Sensei Gray (aka Grey) is a bait color, and therefore not obtainable. If it is permed, the cheater gets an instant 72 hour ban. Only Sensei is able to wear this color.

Trivia

 * In the October 2010 What's New Blog post about the Halloween Penguin Style catalog there was a gray penguin outside the Night Club, but this "Grey penguin" is just the adornment of his coat, not "the real color".
 * In the Earth Day Party 2011 there were two posters with animal costumes that members could purchase. It covers up the entire body, but if a person were to zoom in on the eyes the penguin's color is seen as gray.
 * The penguin on the EPF Badge Pin wears this color.
 * It is the only unavailable color which has a color value.