Quoted from Haymaker:All the games there are standard $1 play/$2 3 plays except MMr which is just always 1 play for $1 no matter how much you put in.
Those old Bally/Williams games are actually a pain to set to 3/1$, you have to go into custom pricing and set the credits, pulses, and bonus levels. It can be done, but takes a bit to figure out. Operator might just not be able to sort it out, are most the other games Stern?