Though it looks to be a giant encased in armor, the Iron Giant is in fact a machine made with lost technology. With its great blade it wreaks havoc upon all within range and no one living knows why it fights...
Theatrhythm Final Fantasy description.
The Iron Giant (
Appearances
Final Fantasy II
The Iron Giant appears as a very rare random encounter on the final floors of Pandaemonium. It is an extremely dangerous enemy, exemplified by its use of the boss theme Battle Scene A instead of the regular battle theme in the Dawn of Souls and 20th Anniversary releases. It provides good stat growth when defeated, in addition to dropping some of the most powerful equipment in the game in the Excalibur, Aegis Shield, and Genji Armor.
Final Fantasy III
The Iron Giant appears as a superboss exclusive to the 3D remakes. It is encountered in the in the "???" dungeon that becomes unlocked after the related Mognet sidequest is completed.
Final Fantasy IV
The Iron Giant appears as an enemy exclusive to the Advance and Complete Collection releases, encountered within the Lunar Ruins bonus dungeon. Additionally, in the Easy Type release the Steel Golem (ステイルゴーレム, Suteirugōremu?) is instead called the Iron Giant (てつきょじん, Tetsukyojin?).
Final Fantasy IV: The After Years
The Iron Giant from Final Fantasy II appears as a boss encountered in the Depths of the True Moon. After defeating it, the party remarks how its differences and similarities to the Armor Construct.
Final Fantasy V
The Iron Giant appears as a rare encounter the castle section of the Interdimensional Rift, as well as within the Sealed Temple exclusive to the Advance and Matrix Software releases. It gives a hefty experience and ABP award, among other prizes.
Final Fantasy VII
The Iron Man appears as a fixed encounter in the Northern Cave, past the point of no return as the party approaches the final bosses.
Final Fantasy VII Ever Crisis
The Iron Giant appears as a boss in several dungeons. A stronger version, Astral Iron Giant, is another boss enemy.
This section about an enemy in Final Fantasy VII Ever Crisis is empty or needs to be expanded. You can help the Final Fantasy Wiki by expanding it.Final Fantasy VIII
The Iron Giant appears as an enemy encountered in Esthar after the Lunar Cry, Lunatic Pandora, and in the Deep Sea Research Center, where it is always found in pairs. It can be obtained as a Triple Triad card with 6/6/5/5 values, which can be Refined into Star Fragments.
Final Fantasy IX
The Iron Man appears as an enemy encountered in the final dungeon, Memoria. The Iron Man can be obtained as a Tetra Master card with CP60 values.
Final Fantasy X
The Iron Giant appears as an enemy encountered on the Thunder Plains. It is an Armored enemy with high attack power, and among the most dangerous enemies on the plains. Piercing weapons, commonly used by Auron and Kimahri, can bypass its Armored attribute. Capturing 10 Iron Giant-type fiends, including the Iron Giant and the Gemini, unlocks the Ironclad Species Conquest in the Monster Arena.
Final Fantasy X-2
The Iron Giant returns as an enemy encountered in Besaid, the Mi'ihen Highroad, and Via Infinito. Defeating 10 Iron Giants or Geminis will cause the next one encountered to Oversoul.
Final Fantasy X-2: Last Mission
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Final Fantasy XI
The Iron Giant appears as a family of enemies encountered almost exclusively within Abyssea. Most Iron Giants are notorious monsters.
Final Fantasy XII
The Iron Colossus is mentioned by Fermon during the "Old Legends, Decaying Bonds" hunt, being the guardians of the shrines that held the Lindwyrm's seal. However, their existence was questioned due to records of the era of their creation being lost in antiquity. After the player defeats the Lindwyrm, the party will receive the Rusted Scrap of Armor key item, which serves as proof of their existence to Fermon.
Final Fantasy XIV
The Iron Giant appears as an enemy encountered in 
Deltascape V3.0 (Savage) during the Halicarnassus encounter. It appears only in the Savage version of the duty. A separate Iron Giant (古代の鉄巨人, Kodai no Tetsu Kyojin?, lit. Ancient Iron Giant) appears in The Labyrinth of the Ancients, with other variants appearing throughout other Allagan installations. The Magitek Colossi of the Garlean Empire are based on the Allagan giants, and appear in several Garlean outposts.
Final Fantasy XV
The Iron Giant appears as a daemon enemy encountered at night, as well as within Daurell Caverns, Steyliff Grove, and Costlemark Tower. It can also be fought during the A Roaring in the Night hunt and the Party of Three main quest. Once the party has defeated an Iron Giant, Red Giants may start appearing in their place when encountered outdoors at night.
A King's Tale: Final Fantasy XV
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Final Fantasy XVI
The Iron Giant appears as a boss encountered in the Phoenix Gate Ruins. It is a powerful Fallen construct.
Final Fantasy Type-0
The Iron Giant appears as an enemy encountered in the Silent Key. It adapts to the party's fighting style by granting itself Protect or Barrier, and can only be defeated using Killsight.
Final Fantasy Tactics
The Automaton appears as a type of creature built by an unnamed lost civilization. Automaton units specialize in commands that deal powerful damage to enemies and zero Faith, rendering them completely unaffected by all magic, including healing magic. Construct 8 appears as a recruitable character, while Construct 7 appears as a boss in Nelveska Temple and other Automatons can be encountered as enemies in various rendezvous.
Final Fantasy Tactics S
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Final Fantasy Crystal Chronicles
The Iron Giant appears as a boss encountered in Mount Kilanda, relying on heavy physical attacks with a large sword, as well as the powerful Graviga in later cycles.
Final Fantasy Crystal Chronicles: My Life as a King
The Iron Giant appears as a boss encountered in the Infinity Spire.
Final Fantasy Crystal Chronicles: The Crystal Bearers
The Iron Giant appears as a powerful field boss encountered in the Harvest Prairie. It appears sleeping in the field, and the player must awaken it to fight it.
The Final Fantasy Legend
The Ironman appears as a potential transformation for the party's monster units. It is a Tier 4 golem encountered in the uppermost levels of the Tower interior.
Final Fantasy Legend II
The Ironman appears as an enemy encountered in the Central Shrine and a potential transformation for the party's monster units.
Final Fantasy Dimensions
The Iron Giant appears as an enemy that encountered in Mt. Falgabard and the World of Misery.
Final Fantasy Dimensions II
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Dissidia Final Fantasy
The Iron Giant from Final Fantasy X appears as a summon. It uses Reaper when summoned, halving the opponent's Bravery whenever they are dealt HP damage. The Iron Giant can be obtained in the third stage of the Distant Glory - Villains storyline.
Dissidia 012 Final Fantasy
The Iron Giant returns with the same function. It can be purchased from certain Moogle Shops for 80 KP.
Dissidia Final Fantasy Opera Omnia
The Iron Giant appears as a boss. It is among the earliest bosses encountered, and is a commonly recurring mini-boss throughout the remainder of the game.
Theatrhythm Final Fantasy series
The Iron Giant from Final Fantasy II' 'appears as an enemy.
Pictlogica Final Fantasy
The Iron Giants from Final Fantasy III, IV, V, and World of Final Fantasy appear as bosses and enemies.
Final Fantasy Airborne Brigade
The Iron Giant appears as a boss encountered in Lunatic Pandora. In battle, the Iron Giant uses Reaper.
Final Fantasy Artniks Dive
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Final Fantasy All the Bravest
The Iron Giant appears as an enemy encountered inside the Fabul Waterways and Zanarkand Ruins. It uses Takedown and drops the Defender.
Final Fantasy Record Keeper
The Iron Giants from Final Fantasy III, V, VII, VIII, X, and Type-0 appear as bosses and enemies.
Final Fantasy Explorers
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Final Fantasy World Wide Words
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Final Fantasy Brave Exvius
The Iron Giant appears as a boss during the "Twelve Types Takedown" event, representing the Human enemy type, while the Iron Giant from Final Fantasy VIII appears as a boss and enemy during the "Lunatic Pandora" and "Lunatic Pandora - Exploration" events, as well as the Chamber of Blue Magic.
In addition to the above, an Iron Giant appears as a boss encountered during the "Armor of Oppression" trial; however, this Iron Giant is called the 大禍の鉄巨人 (Daika no Tetsukyojin?, lit. Calamity Iron Giant) in the Japanese release.
War of the Visions: Final Fantasy Brave Exvius
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Mobius Final Fantasy
The Iron Giant appears as a earth-elemental Warrior ability card, granting the Earth Cross ability. Additionally, the Iron Giant from Final Fantasy XIV appears as a dark-elemental boss, and can be obtained as a Warrior ability card granting the Dark Helios ability.
World of Final Fantasy
The Iron Giant appears as an enemy encountered on the Big Bridge. It can be transfigured with the Mythril Giant.
Stranger of Paradise Final Fantasy Origin
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Final Fantasy Trading Card Game
The Iron Giant from Theatrhythm Final Fantasy appears as an earth-elemental card.
Final Fantasy Portal App
The Iron Giant from Final Fantasy V appears as a Triple Triad card with 5/5/2/1 values.
Final Fantasy Fables: Chocobo Tales
The Iron Giant appears as a series of lightning-elemental cards, granting the Fist, Tackle, Beam, and Overhead Smash abilities.
Final Fantasy Fables: Chocobo's Dungeon
The Iron Giant enemies are fearsome foes, with high stats and powerful skills such as Multi-Slash. They appear as regular enemies and in Dueling Rooms as giant variants. They are better avoided unless Chocobo is capable of defeating one in only two or three hits.
Non-Final Fantasy guest appearances
Dragon Quest & Final Fantasy in Itadaki Street Portable
Iron Giant appears as a chance card, granting gil equal to 10% of total property value.
Dragon Quest Monsters: Super Light
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The Iron Giant appears as a Heartless boss.
Etymology
The mythology and legends of many different cultures include monsters of human appearance but prodigious size and strength. Giant is the English word, coined 1297, commonly used for such beings, derived from one of the most famed examples: the gigantes of Greek mythology.