Ninja

Not to be confused by Fire Ninja or Water Ninja

They were, prior to October 2008, nothing more than rumors, due to the fact that, having previously existed in Penguin Chat 3, people wondered if they might exist in Club Penguin too. It actually was possible to become one before October 2008. On the old Home Page, when you created your penguin, if you clicked "N" in "Choose your penguin's color", you would become one. Rumours such as becoming one if one stood still in the Dojo for half an hour were proven false, since one is logged off automatically if they remain idle for ten minutes. Not until November 14, 2008 were they were confirmed real by The Penguin Times. On November 17, 2008, it became possible to become one by beating the Sensei (a mysterious figure who appeared shortly after the Dojo was struck by lightning and covered in snow) at Card-Jitsu.

Trivia

 * During construction to "Dig out the Dojo", if you clicked the lightbulbs on the stairs to the roof from left to right and then clicked the poster, the poster would spell it out.
 * The 172nd edition of the Penguin Times said that they are peace-loving penguins and big fans of the arts.
 * They typically wear a black suit, black belt and black face mask, and can become semitransparent by dancing whilst wearing this.
 * Before they were introduced onto Club Penguin, websites would constantly claim about the shadows which would be found in the Ski Lodge, Lighthouse and various other places across the island.
 * In November 2008, there used to be ninjas jumping from the sky and bouncing away. This one used to come every 5 minutes at the Town, Ski Hill, and the Plaza. After they became available, these 'mysterious penguins vanished.nThe ninja found at the Lighthouse and Ski Lodge are still there.
 * During the Card-Jitsu Party 2011, Jumping Ninjas returned at the Dojo.
 * The Ninjas from Penguin Chat 3 used to carry a sword on their back, resembling real ninjas, but however, the Sword did not return on Club Penguin because it is considered violent.
 * Fire Ninjas and Water Ninjas can change the weather by having 5 penguins dancing with the same element suit.