Edit Your Favorite 2600 Game!
Editbin, by Thelen - This is a nice, but simple DOS based editor. It works with Windows 95-ME, but not with NT, 2000, or XP.
TileLayer Pro by Kent Hansen - Excellent Windows based editor for modifying not only Atari 2600 games, but other games as well.
By using Editbin, I was able to change Pac-Man from this:
(Notice Pac-Man without the eye! Oh, it's a 100% improvement all right!)
Ok, so now that you know what to do, get these programs and start making the games LOOK the way they were supposed to!