View Japanese title screen:
Quickly press B, A, X, Y repeatedly at the Jaleco screen until the screen becomes scrambled. Press Start after a hearing a sword slash. Press Down(3), Start when the screen changes. Exit the options screen to view the title screen from the Japanese version of the game. Note: Select Kazan as a character after enabling this code. Press Y to execute an alternate uppercut.

Fight as same character:
Select two player mode. Highlight the same character on both controllers simultaneously. Then, press Y on both controllers simultaneously.