Underwater materia is acquired by morphing an enemy named 'Ghost Ship' in the Junon Underwater Reactor. Doing so gives you an item called 'Guide Book', then exchange this with the man at Kalm for the Underwater materia.
no, materia is exclusive to the compilation of final fantasy 7 and does not appear anywhere else
You have to level up a 2 cut materia
Counter Attack Materia (Independent/Purple), Is found after you beat the boss 'Materia Keeper'. Found in the Nibelheim Mountains, the materia is mastered after 100000 AP.
Enter Circle, Square, X, X while in the rocket.
It is a piece of armour with 8 unlinked slots and Normal materia growth.
Yes, it should be sold at a materia shop down the road, as well as you can get master command. I also believe yuffie comes equipped with it.
Final Fantasy 7 is written as Final Fantasy VII.
You get the dress from the boutique, and a wig at the gym, cologne at the diner, a tiara at the materia store and underwear at the Honey Bee Inn.
Final Fantasy 7: Advent Children Final Fantasy: The Spirits Within Final Fantasy 7:dierge of ceberus
Final Fantasy 7 is for the PS1, but Final Fantasy 7 Crisis Core is for the PSP and is a prequel to FF 7.
There are three movies, Final Fantasy spirit within, Final Fantasy 7 Advent Children, and Final Fantasy 7 Last Order
Final Fantasy X-7? no. there is Final Fantasy 10-2 which is the sequel to Final Fantasy 10 (and is the only actual sequel in all of the final fantasy games) and there is Final Fantasy 7, but there is no Final Fantasy x-7. the games may be made by the same people but do not relate to each other in anyway other then the fact they are Final Fantasy.