Quezacotl: Study Panel at Balamb Garden 2F Classroom
Shiva: Study Panel at Balamb Garden 2F Classroom
Ifrit: Defeat Ifrit at Fire Cavern (Disc One)
Siren: Draw from Elvoret in Dollet (Disc One)
Brothers: Defeat Brothers at Tomb of Unknown King
Diablos: Summon using 'Magical Lamp' given by Cid, and defeat Diablos ('Magical Lamp' item --> Disc One)
Carbuncle: Draw from Iguion in Deling City, Presidential Residence (Disc One)
Leviathan: Draw from NORG in Basement of Balamb Garden (Disc Two)
Pandemona: Draw from Fujin at Balamb Hotel (Disc Two)
Cerberus: Defeat Cerberus at Galbadia Garden (Disc Two)
Alexander: Draw from Edea at Galbadia Garden (Disc Two)
Doomtrain (Ghoulish): Have 6 Steel Pipes, 6 Malboro Tentacles, 6 Remedy Pluses, locate and use Solomon's Ring found at Tears' Point (Disc Three onwards)
Bahamut: Defeat Bahamut at Deep Sea Research Center (Disc Three onwards)
Cactuar (Sabotender): Defeat Jumbo Cactuar (Sabotender) at Cactuar Island in Centra region (Disc Three onwards)
Tonberry: Defeat 20-plus Tonberries at Centra Ruins, then take down subsequent Tonberry King (Disc Two onwards)
Eden: Draw from Ultima Weapon at bottom of Deep Sea Research Center (Disc Three onwards)
Phoenix: Receive 'Phoenix Pinion' from Elder at Shumi Village (Disc Two onwards)
Boko the Chocobo: Summon using Gysahl Greens purchased from Chocobo Forests (Disc Two onwards)
Odin: Locate and defeat Odin at Centra Ruins (Disc Two onwards)
Gilgamesh: Acquire Odin before fighting Seifer at the end of Disc Three in Lunatic Pandora
MiniMog, Moomba: These G.Fs are only obtainable via the Pocket Station mini-game, 'Chocobo World'.
Once you miss a drawable G.F, you can still draw it from the 7 bosses in Ultimecia's Castle in Disc Four. These G.Fs include: Siren, Carbuncle, Leviathan, Pandemona, Cerberus, Alexander and Eden. This method applies only to the U.S version.