How many Huge Materia is there?

There are 3 Huge Materia in total. The first is in the Mako reactor in Corel, the second is in the underwater Mako reactor in Junon and the third is on the rocket in the Rocket Town you go to all these places to get them automatically during the game. After you get all 3 pieces of the Huge Materia Bugenhagen keeps them in his observatory just go there and examine them and you will get Bahamut Zero. You must have Bahamut and Neo Bahamut before you can get Bahamut Zero.

Hey cerberus there are actually 4 huge materia and you need every single one of them in order to get bahamut zero. You need 1 from corel off the train, 1 from the underater reactor under junon but you gotta go a sub game thing, the next 1 is from fort condor and you have to fight to protect the condor then theres a guy who will say dat they took it after shinra left and will give it to you and the lucky last is the 1 of the rocket and you need to enter this code: cirle, square,x,x. And to get bahamut zero you need to go to cosmo canyon and go in2 bugenhagen's observatory and examine the blue materia and if you have bahamut and neo bahamut you should get bahamut zero.

Realli hope this helps.
Ultima_weapon666

Ultima_weapon666 is totally right, not the other guy.