I'm trying to set $0.25 per play which Williams I suppose thought a bit silly. From looking around Pinside I found posts of Williams games of the same era and it sounds like I just need to update my ROM in order to get to the custom pricing table in option A.3 01 (on my current ROM it doesn't exist)?
When I boot up the test menu, it says I have LA-5 (sound is L-1). According to IPDB, that's not the latest, though I'm not sure which variant of -7 is? I don't have the capability to burn ROMs at the moment but I heard these can be purchased if need be?
Thanks!