Alternate costume colors
Hold B when selecting a character. A third color is available in two player mode.

Hidden URA options
Complete the game on any difficulty level. Highlight the "Options" selection on the main menu. Hold L and press Start. An options menu will appear in the upper left corner of the screen. The following items may be adjusted: Master Volume, BGM Volume, Movie Volume, Movie Size, Camera Mode, Tone Level, Mono Tone, Stage Effect.

Hidden URA Option 2 menu
Enter the "Fight as Replicant and Wolf", "Enable easy super moves", and "Fight As Vermilion and Sho" codes, then return to the title screen. Press A, X, Y, Z, C, B when the phrase "Press Start" flashes. A sound will confirm correct code entry. Press Start and highlight the "Option" selection on the main menu. Then, hold R and press Start. A hidden menu will appear allowing you to toggle ring-outs, become almost invincible, adjust effects, and more.

URA mode
Press A, B, C(3), X, Y, Z(3) when the phrase "press start" flashes on the title screen. A sound will confirm correct code entry. Press Start, then highlight the "1P Game" selection on the main menu. Then, hold R + Y, and press Start. The game is now in URA mode, which enables random effects with each fight. A clue about the current effect will appear at the top of the screen.

Fight as Repli and Wolf
Press A, B, Z, X, Y, C when the phrase "Press Start" flashes on the title screen. A sound will confirm correct code entry. Repli and Wolf may now be selected under one player and versus modes