Website and data research by 101Leafy.

Armos

For The Legend of Zelda: Majora's Mask on Nintendo 64 (2000).

Tatl says

You know about the Armos, right? Shhhh! Don't touch it! Blow it up before it wakes, please!

Health1
EnglishArmos
FrançaisArmos
DeutschArmos-Ritter
EspañolArmos
日本語アモス

Damage

How hard each weapon hits the Armos, and how many hits it takes to defeat it. A jump attack with a sword or a Deku Stick hits twice as hard.

AttackPowerMultiplierHits to defeat
Kokiri Sword1×11
Razor Sword2×11
Gilded Sword3×11
Great Fairy's Sword4×11
Kokiri Sword: Spin Attack1×11
Razor Sword: Spin Attack2×11
Gilded Sword: Spin Attack3×11
Great Fairy's Sword: Spin Attack4×11
Deku Stick2No damageNo damage
Fierce Deity's Mask: sword4×11
Fierce Deity's Mask: Spin Attack4×11
Fierce Deity's Mask: sword beam3No damageNo damage
Goron Mask: punch2×11
Goron Mask: Goron Pound4×11
Goron Mask: roll1No damageNo damage
Goron Mask: roll with spikes1×11
Zora Mask: punch1×11
Zora Mask: boomerang fins2No damageNo damage
Deku Mask: bubble blast2No damageNo damage
Deku Mask: spin attack1×11
Deku Mask: launch from a Deku Flower2×21
Hero's Bow2No damageNo damage
Fire Arrow2No damageNo damage
Ice Arrow2No damageNo damage
Light Arrow2No damageNo damage
Bomb2×11
Powder Keg4×11
Deku Nut1No damageNo damage
Hookshot2No damageNo damage

Hits to defeat calculator

Drops

When the Armos is defeated, one of 16 slots is picked at random, so each slot is a 6.25% chance.

DropChance
Bomb (5)56.25%
Nothing43.75%

Arrows need the Hero's Bow and bombs need a Bomb Bag; magic needs the magic meter. Without them that slot drops nothing. A Recovery Heart at full health becomes a Green Rupee.

The arrow that defeats it decides the drop, whatever the slot: a Fire Arrow gives 30 Arrows, an Ice Arrow a Recovery Heart, and a Light Arrow a Purple Rupee.

Where to find it

Official guide

A stone statue that starts moving when you touch it. Damage it while it is moving to defeat it. At the end it blows itself up, so get away fast or block with your shield.

ゼルダの伝説 ムジュラの仮面のすべて (エンターブレイン, 2000), p. 188: Translated by 101Leafy
ゼルダの伝説 ムジュラの仮面 完全攻略ガイドブック (NTT出版, 2000), p. 186

Disturb their rest with a Goron Punch and they display unstatuelike behavior. Punch them once more, then stand back while they explode.

The Legend of Zelda: Majora's Mask, Prima's Official Strategy Guide (Prima Games, 2000), p. 129