Press B prior to selecting single or team play mode. Then press A to start the game with both fighters under CPU control.
Fight Against Nakoruru
Complete the game under the hard difficulty level. Nakoruru will appear after the credits are complete.
Fight as Nakoruru
At the Takara logo press Select20x.
Fight as Saisyu and Rugal
At the Takara logo press Select Select Select.
Same Character Match
At the Takara logo hold A B and press Select.
At the Character Selection screen press Start A B.
Slow Motion Mode
Pause gameplay and resume by pressing Select.
Unlimited Super Meter
Note: This code only works when the game is played on a Super Game Boy adapter. Press Select25 at the Takara logo.
At the Takara Logo press Select25x.