Ninja Mask

The Ninja Mask is an item that was released and made a reality when Card Jitsu first came out.

To obtain this item, one must defeat the Sensei in the game. Once a player obtains this item, they have instant access to the Ninja Hideout.

History
Before the existance of Sensei or Ninjas in the current Club Penguin, ninja masks were first seen in Penguin Chat 3. After PC3 was shut down, the ninja clothing disappeared, and said ninja mask became a widely-popular myth; along with the belt counterpart. Originally, the rare superhero mask was widely believed to be the real mask, but was later proven false. When the Dojo became a newly designed room in November 2008, the ninja mask became a real item in CP.

Trivia

 * Although the item itself is rather new, it's been around for many years.