how do i beat the legendary sannin stage?

I have bet the whole game and the team I used was kakashi cause of lighting blade and sharingan, naruto with the fox and unlimited chakra, and hinata with the power to heal. Hope I helped!

Well it's very hard but I will show you how to you have to chose this players naruto,guy,and kakashi I beat that stage with these players well lucks because after that you are going to the insane course which is very hard and these are the players you need to beat them jiraiya , tsunade , and orochimaru.

Just go to training mode and keep fighting with the same characters a buncha times and you'll sincronize with the characters enough to win, I did this and I won and for easy stuff I usually play sannin but for team members your best go is rock lee, Guy and kakashi because Guy and lee have insane moves

Use kakashi, naruto and sasuke. Save all their skills 'till you reach the stage 7 where you will fight the 3 hidden characters ( tsunade, jiraiya, orochimaru )

I would choose these people garra sasuke and naruto to it also is secret team that increses attack defense jump and speed good luck with this team

I would recommend you to use "those who know lonliness" which charaters are gaara, naruto and sasuke. Save their skills till stage 7. Use gaara all the way because gaara maybe slow but a strong ninja too. For the skills, use chidori at the first character, then use sand burial at the last character, after that, use naruto's sexy jutsu to lower the attack of the second and the last character.finally, use proof of the existence to raise all your states.even if the 2nd and the last character hits you your defence is high and his/her attack is low. Hope this helps.....

Well here is what I did.
First off I choosed team guy, go through the levels regulary without any skill(try to get the achievements if you want points) you may get a game over sometimes but it helps alot to retry the stage after the game over, when you get to the 7th level use ALL the skills:
Medicine summon = every character(you probably will have at least 2 with 33 of HP)
8 trigrams 64 palms = orichimaru
Leaf hurricane = the one with white long hair (he is a bad dude, BAD DUDE)
And of course the power of youth.
And fight with this:
Toss yourself into the enemy
Hit him once
Hit him again but this time add the arrow your character's back facing to throw and extra hit, after that recorver some chakra and use the secret technics

You may die a few times but it helps

ME I Used
Guy Hinata And Neji.
BUt I Only Used GUY
Only Use The Dynamic Entry (up, up, circle)
When Your Chakra Is Out, Charge In A Safe Place Keep Running If HE/SHE
IS Getting Close.
Timing Is The Key Here.
I Used All The Skills In The Last Stage.

GUY (Skill: Dynamic Entry) Used To: All Enemy Characters
NEJI (Skill: 8 Trigrams 64 Palms) Used To: Tsunade
HINATA (Skill: Medicine) Used To Your Team

Well the best technique is Use Guy,Sasuke,and,Hinata with sasuke you can use CHIDORI to the three of them then with guy you can use dynamic entry so their life is only 25% and use Hinata to heal your whole team and finally battle in order of 1 GUY then 2 SASUKE 3 HINATA you should win that. HOPE THIS HELPED