Alternate costumes:
Hold Select while a player is loading to change outfits.

Bonus level:
Obtain a ranking of "Fever Time" in each level to unlock the Pander level.

Play as Columbo:
Complete the game as Shorty.

Play as ChiChi & Sally:
Complete the game as Capoeira.

Play as Robo-Z Gold:
Complete the game as Heat. In the Japanese version of the game, complete the game in mix mode and unlock the Pander bonus level. Alternatively, complete the game as Tsutomu, Kelly or Kitty-N.

Play as Pander:
Complete the game in mix mode as Robo-Z Gold and unlock the Pander bonus level. Alternatively, complete the game as Robo-Z Gold under the normal difficulty setting.

Play as Hustle Kong:
Complete the game as Hiro to unlock Hustle Kong. Note: In the Japanese version, complete the game as Columbo or Kelly under the normal difficulty setting.

Play as Michael Doi:
Complete the game as Hustle Kong to unlock Michael Doi. Note: In the Japanese version, complete the game as Hiro or Sushi Boy under the normal difficulty setting.

Play as McLoad:
Complete the game as Comet. In the Japanese version of the game, complete the game as Comet or Columbo under the normal difficulty setting.

Play as Sushi Boy:
Complete the game as Heat. In the Japanese version of the game, complete the game as Bi-O or Hiro under the normal difficulty setting.

Hint: Counterparts:
Most players have counterparts, they are:

Shorty - Columbo
Hiro - Hustle Kong
Kitty N - Michael Doi
Comet - Sushi Boy
Kelly - McLoad
Capoeira - ChiChi & Sally
Hint: Acid Line song:
Enter the sound options screen and select music test. Hold Left or Right to quickly cycle through the song selections. Robo-Z Gold's song "Acid Line" will flash among the titles. Try stopping the cycling on that song to hear it.

Hint: About game:
You can only play RoboZGold's stage if you play as RoboZGold. To unlock anyone you will have to defeat Pander at the end of the levels. She is tough, but keep in mind that although the music changes drastically, her beat remains the same.

Hint: More points:
To earn a higher score, anticipate your player's first move and press the button before it appears on the screen (in the blank bar). The game will skip the first move and you will earn higher points.

Hint: Steal a solo:
Attack an opponent just before their solo to steal it and do your own as well for extra points.

Hint: Shrink your opponents:
Capoeira and ChiChi & Sally can shrink their opponent by attacking them. If you attack twice in a row, they will remain small for the entire battle.

Hint: Make your opponent 2D:
With Shorty, attack twice in a row. If you hit, your opponent will be 2D for the rest of the round.

Hint: Alternate Fever Time partner:
In two player mode, have one person select Capoeira or Chichi and Sally. If both you and the other player qualify for Fever Time, and both of you are within 1000 points of each other, instead of both Capoeira or Chichi and Sally dancing, one of them will sit out and the other will dance with the non-Capoeira or Chichi and Sally character.

Unlock Chi-Chi and Sally (Japanese version):
To get Chi-chi and Sally beat the game with Capoera on any mode. You can use continues as much as you like.

Unlock Columbo (Japanese version):
To get Columbo beat the game with Shorty

Unlock Hustle Kong, Michael Doi, and McLoad (Japanese version):
To get Hustle kong, Michael Doi, and McLoad beat the game with all of the 10 starting characters (They will gradually appear on your character select)
OR
Hustle Kong - Beat the game in normal as Columbo or Kelly
Michael Doi - Beat the game in normal as Hiro or Sushi Boy
McLoad - Beat the game in normal as Comet or Columbo

Unlock Pander (Japanese Version):
To get Pander, beat the game with Robo-z in mix mode OR beat the game on normal with Robo-Z Gold

Unlock Robo-Z Gold(Japanese version):
To get Robo-Z Gold beat the game with Tsutomu, Kelly or Kitty-N

Unlock Sushi Boy:
Beat the game in normal as Bi-O or Hiro