Codes cheats for Black/Matrix AD

Black/Matrix AD - Game cheats, tips and tricks for Dreamcast

Zero
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Rotate the Analog-stick in two clockwise circles followed by Start
when the Japanese text ''Goshujin-sama wo erande kudasai'' appears.
Zero will appear on the character selection screen. Alternately,
press X, Y, A, B, Start when the Japanese text ''Goshujinsama wo
erande kudasai'' appears.