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Super Mario RPG enemy
Battle idle animation of the Gunyolk from Super Mario RPG: Legend of the Seven Stars
Location(s) Factory
HP 1500
Attack 200
Magic attack 120
Defense 130
Magic defense 80
Speed 25
Spells Breaker Beam, Mega Drain, Electroshock
Sp. attacks Echofinder
Items None
Exp. points 100
Coins 0
Misc. stats
FP 100
Evade 0%
Magic evade 0%
Strong Fire, Critical
Weak Thunder, Ice
Bonus Flower None
Yoshi Cookie None
Morph rate 0%
"If we're defeated, the boss is alone!"

Gunyolk is a large mechanical monster created by the Factory Chief and appears in Super Mario RPG: Legend of the Seven Stars. Gunyolk and the Factory Chief are the last enemies that are encountered before Smithy. It resembles a heavily armored combination of a locomotive and a tank with a large vat of molten metal in the back.


Gunyolk uses the Breaker Beam every 2nd turn, which was previously used by the Axem Rangers; unlike them, however, Gunyolk does not need recharge after using it. On odd-numbered turns, Gunyolk chooses from a pair of attack pools. The first has a 33% chance of using Echofinder, which hits one character for 1.5x the damage of its normal attack and inflicts Mute, and uses a normal attack otherwise; the second pool has a 66% chance of using the Fire-attribute Fire Saber to inflict moderate magic damage, and a 33% chance of using the Thunder-attribute Electroshock, which can inflict even more magic damage.

Gunyolk has no resistance to status ailments. Gunyolk is additionally weak to Ice and Thunder.

A palette swap of Gunyolk exists that is unused in the game. It normally only attacks, but will use Lightning Orb every six turns.

Profiles and statistics[edit]

Super Mario RPG (Nintendo Switch)[edit]

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HP 1500
Exp. 100
Weak Elements Lightning
Weak Statuses FearPoisonSleepMute
Drops N/A
Rare Drops N/A
Found In Factory
Monster List profile
Smithy didn't even make this. A mere Factory Chief was the one who invented it. In that light, does it still qualify as a monster?
Thought Peek
If we're beaten, there'll be no one to watch the boss's back!


Names in other languages[edit]

Language Name Meaning
Japanese ラスダーン
Elongated form of「ラスダン」(rasudan), Japanese slang which is a shortening of "last dungeon" (ラスト·ダンジョン)
French Thermutank From "thermique" (thermal), "mutant", and "tank"
German Pyropanzer Pyro Tank
Italian Magmarmato Portmanteau of "magma" and "carro armato" (tank)
Korean 라스던
From the Japanese name
Spanish Mecamagma Portmanteau of the prefix "meca-" (mecha-) and "magma