tracked down a guy with a casio pv 1000 with "games" he thought it didn't work, turns out he had pv2000 carts, good planning casio good planning. Now I have 2 pv 1000s
possibly, but given the crazy failure of them it probably didn't matter. The worst thing is, the pv1000 is fairly unique hardware, the pv2000 is another colecovision/msx/sg1000