Harmonigan (ハモニガン Hamonigan) is a Kaiju that appeared in episode 24 of Fireman.

Subtitle: Sound Spirit Monster (音霊怪獣 Ontama Kaijū)



Harmonigan was a monster created from the vengeance of a harmonica which had been thrown away. It emerged in Yume no Shima, causing nightly noise and earthquake every evening. It managed to absorb Fireman's Fire Flash. It emits flames and heat rays from holes on the body and manipulates countless instruments like limbs. It was blown as a harmonica by Fireman until its anger died out and it returned to its normal harmonica form.


  • Height: 48 m
  • Weight: 10,000 t
Powers and Weapons
  • Energy Reflect: Haromonigan can capture an opponent’s projectile energy attacks and send them back at them.
  • Wind Gusts: Haromonigan can emit powerful gusts of wind from it's "mouth".
  • Musical Overload: With a flash of light, Haromonigan can summon giant-sized versions of modern instruments, such as harps, violins, cymbals, and other harmonicas, to overload its opponents with extremely loud noise.


Fireman Kaiju
Dorigorus | Dorigon | Stegorus | Alien Meteor | Jurasairous | Planet Gomerus | Spacer | Kinokurages | Twin Tail | Kumagorus | Nerogiras | Gudon | Stegorus II | Rodoguros | Alien Baranda | Baranda V | Scoradon | Alien Barogu | Tyrasaurus | Dorango | Alien Tran | Tyrannodon | Lanosaurus | Alien Velder | Tyrasaurus II | Long Neck | Alien Atla | King Zauras | Alien Sulpher | King Zauras II | MukuMuku | Makunosaurus | Gagango | Alien Gagango | Double God | Death Torosaurus | Alien Prima | Destrosaurous | Alien Green | Green Giller | Harmonigan | Alien Virenus | Gadorasaurus | Blacker | Black Satan | Alien Emusa | Bemutan | Devilsaurus | Bemusa King | Spegz | Speguzu Jr. | Dark Mander | Object X
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