Jermafenser
Helmethead,[1] referred to as Jermafenser in the The Official Nintendo Player's Guide entry for The Adventure of Link,[2] is the boss of Midoro Palace in The Adventure of Link. It reappears as the boss of the Palace on the Sea in the original Family Computer Disk System version of that game; in the NES version, it was replaced with Gooma.
In the Famicom Disk System version, Helmethead only has one floating helmet when fought in Midoro Palace, with the second head only appearing on the Helmethead in the Palace on the Sea. In the NES version, the Helmethead that appears in Midoro Palace has the second head. In the NES version, the boss of the Palace on the Sea is Gooma, a creature original to the NES version.
Strategy
Like Horsehead, the previous boss, his weak point is his head. Unlike Horsehead, he attacks Link by throwing fireballs at him from his head. When Link lands a blow to the head, the helmet will come off and be replaced by another one. The detached helmet will then begin to float around and attempt to kill Link by shooting more fireballs and running into him. When Link knocks off two helmets, his true head will rise from the armor - a white head (seemingly with one eye). For the rest of the battle, Link fights the boss while also dodging the fireballs shot by the helmets. After achieving victory in the fight, Link returns one of the Crystals to the palace.
Non-Canon Appearances
Helmethead makes a brief appearance in Captain N: The Game Master during the episode entitled Having a Ball. At the end of the episode, Helmethead stands tall behind the throne at King Hippo and Eggplant Wizard's party in the tower, fanning King Hippo, while Moblins play music in the background. When Link, Kevin and Princess Lana retrieve the Triforce pieces from Eggplant Wizard and King Hippo and use all three against them, Helmethead is destroyed along with the Moblins.
Gallery
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Link battling Helmethead
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Helmethead's true head
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Helmethead's appearance in Captain N: The Game Master
References
 Names in Other Regions 
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| Language | Name | Meaning | |
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Japanese | Template:Japanese | Jermafencer |
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FrenchEU | Helmethead | |
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German | Helmethead | |
Mazura • Jermafenser • Rebonack • Carock • Gooma • Barba • Thunderbird • Link's Shadow
Ball and Chain Trooper • Armos Knights • Lanmolas • Moldorm • Agahnim
Helmasaur King • Arrghus • Mothula • Blind the Thief • Kholdstare • Vitreous • Trinexx • Ganon
Moldorm • Genie • Slime Eye • Angler Fish • Slime Eel • Facade • Evil Eagle • Hot Head • Shadow Nightmares
Spike Roller • Moblin Chief • Hinox • Dodongo Snakes • Lanmola • Hydrosoar
Master Stalfos • Gohma • Armos Knight • Rover • Grim Creeper • Turtle Rock • Blaino
Gohma • King Dodongo • Barinade • Phantom Ganon • Volvagia • Morpha • Bongo Bongo • Twinrova • Ganon
Lizalfos • Big Octo • Stalfos • Meg • Flare Dancer • White Wolfos • Dark Link • Dead Hand • Gerudo Thief • Iron Knuckle
Odolwa • Goht • Gyorg • Twinmold • Majora's Mask
Dinolfos • Gekko • Wizzrobe • Gerudo Pirate • Wart • Gekko and Mad Jelly
Captain Keeta • Iron Knuckle • Sharp • Igos du Ikana • Garo Master • Gomess • Eyegore
Aquamentus • Dodongo • Mothula • Gohma • Digdogger • Manhandla • Gleeok • Medusa Head • General Onox
Twinrova • Ganon
Brother Goriyas • Facade • Omuai • Agunima • Great Moblin • Syger • Vire • Poe Sisters • Frypolar
Pumpkin Head • Head Thwomp • Shadow Hag • Eyesoar • Smog • Octogon • Possessed Nayru • Plasmarine • Ramrock • Veran
Twinrova • Ganon
Giant Ghini • Swoop • Subterror • Armos Warrior • Great Moblin • Smasher • Vire • Angler Fish • Blue Stalfos
Gohma • Kalle Demos • Gohdan • Helmaroc King • Jalhalla • Molgera • Puppet Ganon • Ganondorf
Mothula • Darknut • Phantom Ganon • Stalfos • Wizzrobe • Mighty Darknut • Big Octo
Phantom Ganon • Stone Arrghus • Helmaroc King • Big Poe • Big Moldorm • Frostare • Vaati • Ganon
Chief Soldier • Shadow Link • Manhandla • Dodongos • Big Dark Stalfos • Gohma • Big Dodongo
Big Green Chuchu • Gleerok • Mazaal • Big Octorok • Gyorg Pair • Vaati
Madderpillar • Dark Nut • Big Blue Chuchu • Red Dark Nut • Black Knight
Diababa • Fyrus • Morpheel • Stallord • Blizzeta • Armogohma • Argorok • Zant • Puppet Zelda • Ganon
Ook • King Bulblin • Dangoro • Twilit Carrier Kargarok • Twilit Bloat
Deku Toad • Death Sword • Darkhammer • Darknut • Aeralfos • Phantom Zant
Stagnox • Fraaz • Phytops • Cragma • Byrne • Skeldritch • Demon Train • Chancellor Cole • Malladus
Mothula • Snapper • Heatoise • Big Blin • Rocktite • Geozard Chief • Dark Link
Ghirahim • Scaldera • Moldarach • The Imprisoned • Koloktos • Tentalus • Levias • Bilocyte • Demise
Stalfos • Lizalfos • Stalmaster • Moldarach • LD-002G Scervo • Dark Lizalfos • Magmanos • Moldorm • LD-003D Dreadfuse
Yuga • Moldorm • Margomill • Gemesaur King • Arrghus • Knucklemaster • Stalblind • Zaganaga • Dharkstare • Grinexx • Yuga Ganon
Armos • Red Stalfos • Heedles • Green & Red Goriyas • Gigabari • Gibdos & Purple Mini-Moldorms • Red Eyegores • Flying Tiles & Devalants • Big Pengator & Pengators • Fire Gimos • Moldorm • Lorule Ball and Chain Soldier • Arrghus
Margoma • Arrghus • Moldorm • Blizzagia • The Lady's Pets • Stalchampion • Prismantus • The Lady • Shadow Links
Electric Blob King • Electric Blob Queen • Hinox Brothers • Freezlord • Vulture Vizier • Grim Repoe • Gigaleon
Windblight Ganon • Fireblight Ganon • Thunderblight Ganon • Waterblight Ganon • Monk Maz Koshia(TCB) • Calamity Ganon • Dark Beast Ganon
Stone Talus • Stone Talus (Luminous) • Stone Talus (Rare) • Igneo Talus • Frost Talus • Igneo Talus Titan(TCB) • Molduga • Molduking(TCB) • Hinox • Blue Hinox • Black Hinox • Master Kohga
Bosses in Tears of the Kingdom
Colgera • Yunobo • Moragia • Marbled Gohma • Sludge Like • Mucktorok • Queen Gibdo • Seized Construct • Phantom Ganon • Demon King's Army • Demon King Ganondorf • Demon Dragon