Small fighters:
Select versus mode and choose two fighters. Hold B + C on controllers one and two during the "Now Loading" screen prior to the start of the match.

Bonus characters:
Complete and save the game after defeating Zin Chonrei. Load the saved game and select the "New Game" option. Highlight the following fighters and press B on each (in order): Terry, Hon Fu, Mai, Geese, Bob, Sokaku, Andy, Bash, Joe, Mary. The phrase "Here Comes New Fighters!" will appear to confirm correct code entry. Yamazaki, Zin Chonshu, and Zin Chonrei may now be selected for game play.

Speedup mode:
Hold Start and choose a fighter at the character selection screen.

Expert mode:
Press Back, Forward, Back, Forward, then Forward, Back, Forward, Back at the "How to Play" screen.

Hint: Super Super Death move:
To perform the Super Super Death Move (Cho Cho Hissatsuwaza), hold A + B + C + D and repeatedly tap Start at the start of the fight but before "Go" appears. Your character's name will turn green to confirm correct code entry.