According to the game's general producer Noritaka Funamizu, the game's ratio and grove systems were partially inspired by his personal idea of what The King of Fighters series was supposed to be.
"I had heard of King of Fighters, and just from the title, I had my own impression of what kind of game it would be. It sounded really cool. The Neo Geo had all these different fighting games, you know, so wouldn't it be great if you mixed all their strengths together in one single game? That's what I imagined King of Fighters to be. But when I actually played it, it turned out to be totally different. So when we were making Capcom vs. SNK, I wanted to make it more like the King of Fighters I had imagined in my head."
The song playing during the options menu contains a sample from a Brazilian beer commercial. The line spoken is "Kaiser, una grande cerveja, a cerveja dos momentos felizes", meaning "Kaiser, a great beer, the beer of happy moments". This was the beer's catchphrase at the time.