You have to beat the sumo wrestler and then he'll reveal himself.
how do you get th ninja master to help you on poptropica
He is in his house.
You get the ninja bag from Basho, the ninja master.
the ninja master is the old poet at the far west of the island. He's the one that says a haiku is the answer or somethin. He'll lie to at first but he will come and get you when the time is right. hope this helps.
YOU go to red ninja island {red dragon island
in a chines book and go left
you find him down west
The ninja master is where the hut in the water is (Keep going right throughout the island). He doesn't say it first, but once you complete the quests, he will reveal that he is the real master and he will teach you ninja skills.
It's not possible I've tried
you must do six good deeds. fix a bridge, catch a kappa and a thief,trim some trees, do some autographs, and defeat a guy at wrestling. Then the ninja master will come to tell you you're worthy to be trained.
When you beat Yokozuna, security guards will come and ask to see your passport. The old man you saw earlier, Basho, will come and defend you. The security guards asked that it don't happen again, and they walk off.
well first you beat the champion sumo and the guards will come and get you then an old man comes and saids that you are with him then he tells you to meet him at his house on the est side of red dragom island