I've got an un-dumped Taito Puzznic bootleg to be (hopefully) added to MAME. The Italian Puzznic bootleg (puzznici) currently in MAME has the scantily clad 4-bit naked girls and uses 1mbit tile/sprite roms. My version doesn't have the girls and uses 512kbit tile/sprite roms. Both my version and puzznici lack the protection MCU of the parent.
Comparisons between this bootleg and the parent (puzznic) show the following :-
ic10 (tiles/sprites) - identical ic9 (tiles/sprites) - 17 bytes difference ($40-$4f and $60) ic11 (Z80 code) - lots of differences
The roms play without issues when substituted into the puzznici folder (with the usual warnings about rom sizes/CRCs being incorrect).
The bootleg board has a PAL on the top board. I've swapped the PALs around from my original board to the bootleg board and both games boot fine and play with the swapped PALs. Unfortunately my eprom reader won't read PALs, I could send it to Porchy if needed as I'm sure he could probably read it.
If you need any more info then let me know.
Send me a PM if you're a MAME dev and want the roms.