Fight as Gouriki:
Press Up(2), Down(2), Left, Right, Left, Right, B, A at the title screen.
Fight as Reiji:
Press A, B, Right, Left, Right, Left, Down(2), Up(2) at the title screen. Note: While fighting as Reiji, press L + R when the health bar is at approximately 33% to transform into Yami or Hikiri.
Hold L and press Left or Right at the character selection screen. The character portrait will change colors to confirm correct code entry. Then, select a character while L is still held.
Break down all ten buildings in a single stage. Return to the stage selection screen and press Start. Alternatively, successfully complete the game in tag team mode under the very easy difficulty setting using only one character in under twenty-one minutes.
Hint: Regain health:
Repeatedly tap C-Up, C-Down, C-Left, or C-Right after being knocked down to regain up to two health points.
Hint: Extra character creation bodies:
Create and train a character until he or she has accumulated over ninety moves. Two new bodies (male and female) will be unlocked the next time the character creation feature is used.