Black/Matrix AD Cheats

Fake method: Hit X,Y,A,B,Start when the Japanese text ''Goshujin-sama wo erande kudasai'' appears. Zero will show up to the right of Prague, but only says ''Gomen ne'' when you try to select him.

Real method: Do 2 full rotations on the analog pad, then hit start when the Japanese text ''Goshujin-sama wo erande kudasai'' appears. Zero will show up to the right of Prague, and you actually get to select him this time.

When the screen shows ''Goshujinsama wo erande kudasai'',
press X, Y, A, B, and press Start.

A guy named Zero should appear, but when selecting him.
He will say, ''Sorry.''

Therefore still cannot choose him.