I played this game a lot on a friend's macintosh, but I can't remember the name of the game and if it had colors or not. It's so many years ago, can't have been more then 7-8 years old at the time. I've asked my friend on fb if he can remember the name. Like ropa said though, there's been many different versions of it. I've read somewhere that Andy Davidson was inspired by this game when he decided to create worms