After getting this sucker home and cleaning it up a little so I could work on it without getting covered in dust and spiders, I fired it up to see what I was dealing with.
This is the screen I was greeted with...
I checked all the fuses and volts, reseated the connectors but no change, looks like this board is going to need some TLC to get it up and running again.
I pulled the board, put it on the bench and started testing for clock and CPU activity. The clock seemed good, and I was seeing CPU activity at the 6502 on the top board, so I THOUGHT that was ok (Turns out that CPU is for sound only, the actual game CPU is in a huge plastic block on the main board underneath

)
I went through each of the game ROMs, dumped them to file and then verified them against MAME ROMs and they all came up good too.
After asking around on KLOV my mistake was pointed out, that I hadn't tested the main CPU on the bottom board and that they often crapped out on this game. So off I went to try and address that...