Iron Giant

Iron Giants, also known as MacGiants, are hulking metal brutes commonly found as enemies in nearly all of the Final Fantasy series. Although the name can change slightly from game to game, the general look of the iron giant remains the same. They are tall metal monsters, often wielding swords, that rely solely on physical attacks of different kinds.

Final Fantasy II
The Iron Giant's first appearance. It was a very rare random encounter, similar to Warmech, on the higher levels of Pandaemonium. Besides giving good stat multipliers, it also drops Excaliburs, Aegis Shields, and Genji Armor.

Final Fantasy IV
Translated as the MacGiant, it appeared in the Giant of Bab-Il.

Final Fantasy V
Similar to the second installment, it is a rare encounter in the final dungeon. It can be encountered in the upper floors of the dimensional castle portion of the Void. It gives a hefty experience and ABP award, among other prizes.

Final Fantasy VII
Iron Giants appear as the party approaches Jenova in the core of the planet. A red version of it, Wolfenstein also appears as an encounter on the Mt. Corel train tracks when Cid tries stopping the train from crashing into Corel.

Final Fantasy VIII
Iron Giants appear in Esthar, Lunatic Pandora, and more frequently in the Deep Sea Research Center.

Final Fantasy IX
The Iron Man is a random encounter in the game's final dungeon, Memoria.

Final Fantasy X
Iron Giant is a random encounter on the Thunder Plains. More powerful versions appear inside of Sin, and the Omega Ruins.

Final Fantasy X-2
It appears in various places in the game.

Final Fantasy: Crystal Chronicles
The Iron Giant is a boss monster at Mount Kilanda, relying on heavy physical attacks with a large sword, as well as a non-elemental spell similar to Ultima in later portions of the game.

Final Fantasy Fables: Chocobo Tales
The Iron Giant a lightning element card, and has six cards under it's name.