User blog:Wendy-Testaburger/A question about the history of Mugen coding...

What was coding a character like before Fighter Factory, as seeing that Fighter Factory was made shortly after Mugen's release? A site said that you have to know DOS coding to release a character. That has not been updated since 2008 or 2009. I couldn't find any DOS coded character anywhere besides Kung Fu Man himself. The oldest character I found was  Homer Simpson by Warner nothing else  before that year (I am guessing was 2005).