Man there is so much misinformation in this thread.
FF 1 - 3 were on the NES
FF 4 - 6 were on the SNES
FF 7 - 9 were on the PS1 (and were 3D, Morph)
FF 10 is on the PS2
The Gameboy FF games were renamed to Final Fantasy when exported out of Japan, I think they were part of the Mana series. Thus they were no FF game for the original gameboy. FF Mystic Quest was an American made FF, thus is sucked and I don't comsider it a true FF.
The FF spin-offs are as followed:
Final Fantasy Tactics - PS1
Ehrgeiz - PS1
Chocobo's Dungeon 2 - PS1 (the first one wasn't released outside of Japan)
Chocobo Racer - PS1
They've also released collection of past games:
Final Fantasy Athologies (contained FF 5 & 6 plus a music CD)
Final Fantasy Chronologies (contained FF 4 and Chrono Trigger)
Final Fantasy Origins (contained FF 1 & 2)
Please note that this list doesn't include any up and coming FF games.
Before you say anything, no, I'm not a die hard FF fan, I'm a die hard Square fan. My fav games are Xenogears, Front Mission 3, Chrono Trigger, Earthboud (only non Square RPG), and FF 6 & 7 (tied).
Teenage Male Geek + Female Remotly Intersted in Common Geek Activities = Teenage Male Jackass