Press Up when choosing a fighter at the character selection screen.
Play until total playing time reaches 30 hours or more. The announcer will say "Wow" after this occurs. Play in two player versus mode with Zulu and Xtal. Win a round with a lap time of less than five seconds with both of them. You will then be able to choose your area of battle when playing in versus mode.
After beating the game, you will be allowed choose from among sixteen different color schemes for the character selected. To choose a different color, hold Select and press any attack button. Player one and player two each have their own set of eight color palettes.
Hold L1 + L2 + R1 + R2 at the title screen. Keep those buttons held and highlight the "VS play" option by pressing Down + Start. Choose any two fighters and watch the CPU take over both.
Complete the entire game as Xtal without continuing. Then, hold L1 + L2 + R1 +R2 and press Select, Start when Xtal's icon appears at the top of the screen in the pre-fight menu.
Complete the entire game without continuing using all eight characters (including Zulu).
Complete the entire game as Zulu and Xtal under normal or hard difficulty level without continuing.
Complete the entire game without continuing under or normal or hard difficulty levels and defeat Xtal.
Play through the entire game and defeat him with all eight characters. The announcer will say "Wow" at the title screen after the last character defeats him. Zulu will be available for selection after the game starts.
Accrue over 100 hours playing time, during which you must have performed a five hit combo. Enter the option menu and highlight "Match Point 3". Hold L1 + L2 + R1 + R2 and press Down. A new "Shadow Obj" option will appear on the screen. Enable this option to allow the PlayStation to have more processing time for action at the cost of graphics. Repeat the code to return to normal mode.
Instead of always keeping the Replay Save option on, press Select button after a round to display an option to save the current fight to a memory card.
Finish the game on Easy difficulty without losing any rounds and without continuing. Enter the Main Title Screen and highlight Options. Hold L1, L2, R1, R2, Start and Select.
To play Phalanx, hold down Select and Start on controller two while the game disc is loading up. When the Developer's Logo appears, the secret game should appear.
To get invinicibility while playing Phalanx, go to the mini-game's Options screen, highlight the Speed option and press Left, Up, L2, R2 and Triangle at the same time. If performed correctly, the screen should turn red.
Play until the total playing time exceeds 200 hours. A special congratulations screen with artwork of the characters will be displayed.