Yoshinori Ono explains why Street Fighter III's popular 'parrying' game mechanic was removed for Street Fighter IV.
"I didn't want to create an entertainment videogame as such," he says. "I wanted Street Fighter IV to be a tool for the people to use and enjoy themselves.
I often use the analogy of a chess game. Chess can be played by the American or Russian champion, if you like. We can see them playing chess on live TV and so on. The parrying system is that level. It's quite hard for the vast majority to master but chess can be played by grandpa and grand kids on a Sunday afternoon. I want Street Fighter IV to be a tool for everyone to enjoy. Therefore I deliberately didn't include the parrying system."