MS. Pac-Man bootled on original SEGA Z80 board?

[keropi]

Again with another weird thing (at least for me )
I got this original SEGA board and googling the part number reveals on MAME source that this board was originally Pengo :







but ofcourse it's not that simple, reading the eproms reveals it's a Ms. Pac-Man bootleg:



Anyone knows what's the deal with this? Old hack to make a quarter-munching Ms. Pac-Man from a Pengo?
I am unsure what to do with it - assuming it works .

Any help/info will be appreciated!
Thanks!

[nem]

Old hack to make a quarter-munching Ms. Pac-Man from a Pengo?

Correct. Pengo and Pac-Man are basically the same hardware.

[keropi]

interesting
so I have an original bootleg in my hands
I need to build a jamma adapter to test this