The only way to be absolutely certain would be to play each variation. So I'll do that when I can and avoid submitting for variations I don't have. I guess people who capture screenshots of other people's ROMs from emulators have no idea what variation they're playing.
What were noticeable changes in SMB3 rerelease's software?
http://tcrf.net/Super_Mar...os._3/Version_differencesCard Game
One of the most famous differences between the two American versions. PRG0 is obviously grammatically wrong, as it should say Miss twice and you're out!. As there is no more space in the text box to do that, the PRG1 version simply reworded the sentence to fit it in.
Princess' Letter
In PRG0, the Princess talks about the Kuribo's Shoe. In the PRG1 version, it was renamed to Goomba's Shoe. This however was a bad choice, as the item is called Kuribo's Shoe in the game manual and practically everywhere else.
Area names
American (PRG0) American (PRG1)
Grass Land Grass Land
Desert Hill Desert Land
Ocean Side Water Land
Big Island Giant Land
The Sky Sky Land
Iced Land Ice Land
Pipe Maze Pipe Land
Castle of Koopa Dark Land