whatever you want.
Something sneaky yet SUPER awesome :D
Once you become a ninja you get a ninja mask and gain entrance to the ninja hideout. Once you are at the ninja hideout you can buy ninja clothing and furniture, train to become a fire ninja or a water ninja. Or just play other ninjas in regular card-jitsu.
You can become a ninja by going to Lakeshore and Ty will teach you to become a ninja.
Starting November 17th you can get a pack of cards from Sensei in the Dojo. Battle other penguins and earn new belts. The more better you get the more you will become a ninja. Once you earn a blackbelt you will have to battle Sensei and if you defeat him you will become a ninja, releasing a new room. ----
You can teleport like a Ninja, as well as dress like a ninja (Using boolprop testingcheatsenabled true and pressing Shift and N in Create-A-Sim), but you can't -become- a ninja. You can't be paid to be a ninja, and you can't kill people like a ninja.
you should become a fire ninja
To get to the secret dojo, you have to be a black belt, challenge sensei (beat him), and you will become a ninja. Once you beat him he will give you a ninja mask and tell you where the secret dojo is.
Who do you think I am, a ninja vampire expert
Go in the ninja hideout, and buy it from the ninja catalog.
There is no ice ninja now
You have to play the ninja card game at the dojo.
You can become a ninja faster by earning the belts and fighting people more.
Umm... I guess you can't become a REAL ninja even is your username has the word ninja in it. You can pretend to be a ninja if you wear a ninja costume. My username is prinsess5742, I log in pink cow and I'm a premium member. Also you have to be a premium if you want the ninja costume.