You can make your own heroes once you have all this players to unlock new teams!!!
1.naruto
2.sasuke
3.sakura
4.lee
5.neji
6.tenten
7.shikamaru
8.choji
9.ino
10.kiba
11.shino
12.hinata
13.kakashi
14.guy
15.gaara
16.jiraiya
17.orochimaru
18.tsunade
19.itachi
And finally 20.kisame

1.now go to heroes mode
2.and select the course you want to play
3.now go to custom team
4.to unlock the secret teams you must choice the right ones

Secret teams
1.to unlock the legendary sannins select jiraiya,tsunade,orochimaru
2.to unlock team sharingan select sasuke,kakashi,itachi
3.to unlock akatsuki select itachi and kisame
4.to unlock master & student select jiraiya and naruto
5.to unlock the cursed select orochimaru and sasuke
5.to unlock hot blood master & student select guy and lee
6.to unlock eternal rivals select kakashi and guy
7.to unlock team byakugan select hinata and neji
8.to unlock the uchija clan select sasuke and itachi
After you unlock each 1 of then you are going to get send to a course you chose then after that pres start and exit to mode select then go to heroes mode and keep on unlocking all the secret teams then just keep on doing this to you have all the secret teams quick then after you have them all try them out to see how you like the teams and just keep on trying out all your new teams and then you can do what ever you want with them then challenge different course with your new undefeated team!!! Good lucks to all I hope this cheat will help you a little.

How to bet gaara.
What team do I use to bet gaara.

Once you have all the characters in the game: all 20 characters:

1.naruto
2.sasuke
3.sakura
4.lee
5.neji
6.tenten
7.shikamaru
8.choji
9.ino
10.kiba
11.shino
12.hinata
13.kakashi
14.might guy
15.gaara
16.jiraiya
17.orochimaru
18.tsunade
19.itachi
And finally 20.kisame

In Hereoes Mode there is a Hidden team called the Sharingan Team:
Sasuke
Itachi and
Kakashi

Just add them three in custom team and you will get a not only a new team but a new move known as the (Sharingan to the Max)-throughout the whole battle your chakra will never be wasted!!! Isn't that awesome!!! :]

You are able to create a team. If you put in the right characters then you can unlock a hidden team. Here are just a few I found.
Naruto + Sasuke + Gaara= Those Who Know Loneliness
Guy + Lee = Hot Blood Master & Student
Sasuke + Kakashi + Itachi = Team Sharingan
Orochimaru + Sasuke = The cursed
Jiriya + Naruto = Master & Student
Jiriya + Tsunade + Orochimaru =The Legendary Sannin
Neji + Hinata = Team Byakugan
Kakashi + Guy = Eternal Rivals