Son of a ---smurfette---. I crafted this beautiful response and I accidentally clicked on the back link. ---fudgesicle--- that, I'm not retyping my response so you'll get the short version.
No, I don't think it's fair to use the fact Indy 800 (or any other game) uses daughter cards or individual hardware components on a per object basis as a marker for a game to be distinct in terms of generating color. As near as I can figure, Indy 800 is a discreet logic game supporting eight players, so the daughter cards appear to be more of an engineering decision to increase field reliability and reduce production problems and less to do with generating colors.
Seems to me that Galaxian enjoys being the first game to generate a true RGB color signal rather than a combined composite signal.
I'd still give the award to Indy 800 for first color arcade game. Would you guys?
I guess so. I would tentatively tag it as such. I can't find any solid information on any earlier color arcade games. So Indy 800 would be the first color arcade and Galaxian would be the first true RGB. Works for me until some earlier example comes along.
(
Someone mentioned to me that Sprint 2 is the first CPU game, yet the
Gun Fight manual clearly shows an 8080 CPU in the schematics.)