They own zero rights for games they don't have licenses for. That is a dozen games at most, though Epyx went tits up a long while ago, so their right claim is questionable and I was polite. If I wanted to claim some right I would have gone for a similar company, that no one can check on.
Each game belongs to its developer/publisher, not some company who produce hardware it runs on. This is even true for consoles, not just home computers.
They have zero, nada, nothing.
Don't fall for this pure BS.