Hammy sent me C-PR-B MCU which was marked as BAD DUMP in MAME, as it was taken from an bootleg-pcb. While it worked perfectly for the game in MAME, it had to be marked as BAD until we got a decap from the original one.
The new decap is identical to the existing dump from the bootleg.
=> Another "BAD DUMP" flag removed from MAME.
Thx to Hammy for sending this mcu for decapping.