8BA wrote:When they port a 2D 4:3 game to 16:9 widescreen, why don't they just extend the visible portion of the stage instead of stretching it or leaving black bars?
I can understand this for shmups, but certain games like Super Mario Bros could still work without a major overhaul.
The answer is pretty simple: they don't port 2D games. They use emulators, emulators are programs that basically pretend to be a console and behave exactly like it. They can't modify anything about the game because they don't know how the game itself works. They only know how the console works and replicate that.
Then there's also the fact that they don't want do change anything, because then they would have to QA those changes. Companies test everything about their products before releasing them, now say Super Mario Bros is already pretty extensively tested, but if you were to make changes you would have to extensively test them again before releasing it to make sure those changes don't break anything.
Finally we have the users, who when they buy Super Mario Bros primarily do so for the nostalgia. They want what they remember. Not significantly (and allowing you to see more in a 2D game is significant) changed games. It'll divide communities that play the games competitively, best case scenario they'll just ignore the new release (lost sales...).