I wanted to comment on one thing:
quote:
Most 2600 games (or any games for that matter) are considered what is called "work for hire" so the copyright goes to the company for whom the game was made. However, in a case such as 'Garfield' the copyright continues to be held by Paws, Inc. just as it was at the time. That is why a special arrangement was set up with Paws, Inc. to allow the release of the Garfield ROM. (You are legally allowed to download the ROM and retain ONE copy of the ROM on a cartridge for personal use only.) So, certainly any licensed games (Star Wars, Indiana Jones, Alien, etc.) are still technically owned by their respective companies.
This isn't entirely clear. It's not quite the way this reads (though I'm not a lawyer...).
Basically, the game company owns the program code, period. The licensing is typically of the names, characters etc. That's more of a trademark issue, not a copyright issue, though you'll often see copyrights from the originator (Disney, for example) indicated too.
But with these old games, the originator has no rights concerning the ROM itself. They could potentially sue for infringement over the likeness of the game graphics, but I think this is unlikely. They would have no right to complain if the graphics were changed enough so that the game no longer appeared similar to the licensed work(s), and the title/documentation was also changed.
For a living breathing example, look at Telegames's "Adventures of GX-12", which is actually the same game as "Adventures of Tron". They got the rights to make the games from M-Network, but not the rights to the trademark "Tron" (etc) from Disney, so they had to change the name. The graphics weren't derivative of the original work (the movie "Tron") enough to be a problem, so they weren't changed.