Orochimaru probably came up with the idea.
Idfwu
Temari helps Shikamaru defeat one of the Sound Ninja Four with her wind jutsu.
No they can't, you can only unlock Kimimaro!
sakon(ukon) were the strongest of the four, but when the group was five, kimimaro was the strongest
Nope Naruto clash of ninja revolution 2 doesn't have the sound 5 in it
Sound ninja are the followers of Orochimaru just like leaf ninja- they live in the sound village that Orochimaru created. No one knows its exact location
made is a 4 letter word. -.-" I don't mean to sound rude, but, made is a four letter word and the only four letter word with the four letter word 'MADE' in it is made.
Jack Stevenson
Ding Dong
The ninja use shuriken. While there are four pointed ones, they can have any number of points. There are 'stick' shuriken that look like a pencil, see Bruce Lee's Return of the Dragon where he made them out of chopsticks and used them effectively.
You have to do the missions.
Sound Ninja