Infecund Garb Yankee: Word replacement in NES roms

I took a ROM of one of my favorite NES games, Faxanadu, and replaced everything in the file that looked like a word with another random word containing the same number of letters. Here's a video illustrating the results (takes a few moments to get to the good stuff): Watch this video

Source code for the program I made is after the cut. 

Note: works better on some games than others. Obviously text-heavy games work best, but even then it'll be hit-and-miss. Most NES games didn't just store their text as strings of ASCII text sitting around in the ROM.

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