En un Mesage Board de Gamefaqs pone esto:
Aight. I didn't make these codes, but here are some I encrypted from YCAT's source codes. If they don't work, that's all I gots for yous guys, so don't complain to me.
Enter these codes under JPN region. Make sure you name the (m) code that way. I don't know if caps makes a difference.
(m)
PA32-UX6J-EG3UQ
TK8V-H256-2YCF8
Secrets Open
5WBZ-37V5-DE7G3
8PEE-9QN4-WC04V
KTT5-MG0G-NG2U1
7CKZ-WD7C-48B83
CCYB-4FTD-JZ3C1
Player1
Chakra MAX(Press X)
MAXHP(Press D-Pad left)
Y874-ZGWQ-MXB34
2Q3A-822R-FZ9TA
YCUC-42T0-WN7TC
PJC9-KCHF-HQF00
PMAD-3M2Y-AMPKB
Let me know if these work or not as I don't have the game.
Habria q probarlos pero no se yo, no le veo mucha pinta de funcionar. Saludos