Originally posted by: Holy_Ostrich
I'd almost say it's safe to go by publisher as (you have to figure) the likes of Seta, Gametek, Cybersoft, Raya Systems and Sofel didn't release nearly as many copies of their games as Konami, Capcom or Nintendo themselves likely did. Even though lots of their games hold next to zero value in terms of the more popular companies, I'd still say they're all minimum of 5's across the board with their releases with some obviously being rarer then that. Have you ever seen a TKO Boxing or Air Cavalry at a local gamestore? Or a Musya, Zool or Cacoma Knight for instance? I know I have not.
Taito has consistently been another developer that's got more uncommon (but sought after) games for the early Nintendo systems, and looking over a list of their released games for the SNES, besides the Darius and sports games... Sonic Blastman 2, Jetsons and Flintstones are all pricey and all fairly uncommon/rare.
I did get a TKO recently that has been sitting forever after I finally realized how uncommon it was. And for whatever reason the Missoula re-seller had tons of Cacoma Knights
Don't think I've seen any of the others in the wild though