This is for the North American version only.
Everytime you beat the game in Story Mode you'll unlock an extra student for use in any mode but Arcade. It doesn't matter what school you use to beat the game, you just need to beat it to the credits in Story Mode. After you get John, no more extra students will be avaliable.
- This only works for Hinata, Shoma and Boman.
On the character select screen go to either Boman, Hinata or Shoma, whoever you want to play as. Hold START and select them with Y, B, X or Y button (If you try to make different colors by pressing A+B for example, it won't work) Hinata wears the same outfit except she has sleeves, Boman has no shirt and Shoma wears a jersey kind of shirt.
After winning the last round of a fight, you can move the camera in different directions using the analog stick when the characters do their winning poses.
Complete Arcade Mode with any school on any difficulty, and you will be able to view that School's Story in the Options Menu.
In arcade mode play story mode and pick the Gedo Koukou school. When you get up to the match against Wild Daigo finish him with a party up attack (when all three fighters attack at once) in one round. Now the story will go on a different path and when you finish the arcade mode game you have unlocked him.