hi, i converted spartan x 2 (kung fu 2) to run on a mmc3 board so it can be put on a nes donor. it uses ram now, so a tsrom or tkrom board would be appropriate. available at my patch site here: 

http://www.angelfire.com/retro/ki...

i started this over 2 years ago, happy to finally have it done!

wow, that's awesome! great job!

Thank you for this. It is a game I've been wanting to make without a good solution, until now.

cool! let me know how it works out. fyi this seems like it works ok with the translated rom out there too, if you want to give that a shot.