The game Final Fantasy X has a fictional language called "Al Bhed" which is just a letter-swapped version of the english language. I think it would be fun if there was a command that could "translate" a user's input text into Al Bhed by replacing each letter of the query, and maybe another command to translate text from Al Bhed into English as well.
I thought that that this might have been something that somebody has done before, because Final Fantasy is pretty popular, but I can't find any such thing done using Nightbot. I did find some source code for a fancy program that translates both directions using JavaScript, but I'm not sure if it's possible to make this work with Nightbot. Has anybody ever done something like this?