While researching some repair specs on a Space Invaders pinball machine, I stumbled across a link to a mod chip for a Space Invaders arcade machine.
Do you think I could find the link now?
From what I read, the mod is just a small daughter board that plugs into the EEPROM socket, and you can choose from 4 different games via the P1/P2 buttons.
Can anyone help me locate this again?