Randy Hoffman is going to hopefully hook me up with a dumper in California (I don't want to deal with sending it to Guru if I can avoid it). I'm going to try changing the dip settings (after recording the current settings). Thanks for the pointers, everyone. I'll let the group know if I get it working, or if it ends up being a good ROM dump eventually.
Also, it's thanks to this board that this thing was even discovered. It was sitting in one of my neighbor's mother's basement for the last 20 years. I probably wouldn't have been talking with him about arcade games if I hadn't rediscovered MAME last year, and happened across this site.
Oh, and I hope it's not a really stupid game!

Speaking on the neighbor's mother's basement - she's got a few other games down there: One other unknown arcade cabinet game (I'll find out what that is), a standard old pinball, a few video poker machines, and some kind of a cocktail table pinball machine. Has anyone ever seen a cocktail table pinball?