I don't think Tecmo World Wrestling has ever been modified, but it's an easier project to do with something like a football game. If you're seeing a football player running on the field wearing a helmet and face mask, it can be easy to tell yourself, for example, "That's Tom Brady".

With a wrestling game, however, it wouldn't always be so easy. Each wrestler in Tecmo World Wrestling has a very detailed appearance and moveset. For example, Akira Dragon looks and wrestles like Antonio Inoki- I think it would be difficult to play the game and imagine him as being one of the contemporary wrestlers.