Become a ninja on club penguin

Im gonna tell you how to become a ninja. all you do is go to the dojo which is at the top of the map and go in to the dojo, you will see a pillow click it and a guy called SENSEI appears and when he talks to you read what he says then after all the talking he will give you some cards. Once you have done that go to him and click earn your belts and you will battle other penguins. as you go along you will earn belts from white to yellow to orange to green to blue to red to purple to brown to black. Once you have the black belt battle SENSEI and if you beet him he will give you a mask and you can also enter the ninja hideout called the flying flippers emporium. Good luck! :D