I picked up his Transporter to the Rescue a week or so ago. It wasn't working, giving me a ball missing error. Upon troubleshooting the issue, I found numerous hacks. The baery holder was shot on the board. I replaced it. The ball missing error is a broke wire somewhere. While I was digging around, I found ROM labels sating PROTO 1. IPDB doesn't mention any protoype games. They stuck a SL 1 sticker over the Proto 1 part of the label. Would they stck these ROM's in a production game? Just curious. It is very dirty, and needs a good cleaning.