Dragoon X Omega II (I know, it's a mouthful) is a fantastic hack of Final Fantasy for the NES. Complete overhaul; all new graphics, enemies, storyline, equipment etc. Basically, everything was stripped down to the engine and built back up from scratch.
Screenies:
Author's website:
https://sites.google.com/site/panicus/
IPS patch:
https://sites.google.com/site/panicu...attredirects=0