Mario Fantasy Adventure
Original title: Final Fantasy
Platform: Nintendo Entertainment System
Region: USA (Update Hacks)
Media: Cartridge
Controller: NES Gamepad
Genre: Role Playing Game 
Gametype: Hack
Players: 1
Hacked by: Acmlm
_________________________
The stars of the Super Mario Bros. series star in this complete re-creation of the original Final Fantasy game. There's new graphics, new text, a redesigned map, and even some new music!

http://www.derok.net/nes-roms/final-fantasy/mario-adventure