when your picking your character press w and j
when your special meter is full and you are in naruto kyuubi mode or ichigo bankai mode press j and k
it is battle mode but i do not no wat to do after that
Naruto does not combine the sage mode with the Kyuubi`s eye because when naruto went through the sage mode, he turns little bit into a frog. You should read more Naruto Shippuuden manga chapters.
You have to get enough storm points and you can do free battle, or you can do story mode and when you get enough storm points then you will unlock Naruto's dad.
He travel to the toad mountains in Naruto Shippuden 154 to learn sage mode
get everyone then beat single player on the battle mode
Beat the story mode
You must defeat him in the game and get far in free battle mode i believe. I have the game but beat it so its hard to remember everything. Try to beat as much of the game and battle mode as you can.
Do training mode and arcade mode
No only on training mode and on certain story missions
You can only use different characters in Quick Battle or online mode.
No. The only multiplayer options you have is for Free Battle.