Just keep beating up ninjas in samurai in every room and you'll get them all
in akiba
First, you go to Lolasia and beet all Kappas and get the invitation letter, after cutscene, goto Akiba and go to the entrance. After the cutscene, you will be in the tournament.
type /join akiba
well I think adventure quest worlds .com will really satisfy you for a good ninja game on aq worlds I am a level 21! my nickname is the asomeater completely original . if you have account already go to a place called akiba I know its a weird name but will have many ninja ,hope I could of been of help .
David Akiba was born in 1940.
Akiba Lehren was born in 1795.
Akiba Lehren died in 1876.
Tadatoshi Akiba was born in 1942.
Kenya Akiba was born in 1962.
Yorie Akiba is 5' 5".
Akiba Rubinstein was born on 1882-12-12.
Akiba Rubinstein died on 1961-03-15.