I've got a Slither main EPROM/sound board around I've almost completely stripped of its components, when I've got it bare and before reassembling it I'm going to do a scan of the foil pattern if anyone wants to do a run of repro's someday, all the components are standard, off-the-shelf stuff.
For those unfamiliar this board is the only one unique to Slither, the rest of the board set is exactly the same and is interchangeable with Qix.
It's a pity it was such a flop, I think the game is addictive and personally I like it a LOT better than Centipede. It kind of reminds me of the story of Entertainment Sciences which made Turbo Sub and the holiest of lost holy grails, Bouncer. They only managed to squeeze out one game, and just barely, and financially crashed before releasing Bouncer.