"These Class 1 burrowers live underground and, while technically blind, are acutely attracted to vibrations. They are extremely dangerous and hard to kill."
―The Troop official site's description of the Mongolian Death Worm
Mongolian Death Worm
Mongolian Death Worm

Do The Worm
The Great Punkin


20'-40'; 50'-300' in length


7500-25000 lbs

Special Abilities:

Class 1 burrower

Mongolian Death Worms are giant, worm-like monsters and Class 1 burrowers. They are sensitive to vibrations and are known to eat humans.


Do The WormEdit

A Mongolian Death Worm is attracted to a construction site by vibrations from a jackhammer, and eats one of the workers.

Felix plans to use vibrations from a washing machine to attract the Death Worm and blow it up. The plan works, but unfortunately, three pieces of the Worm's body remain and each grow into a new Mongolian Death Worm and escape underground.

That night, the three new Death Worms are attracted to Lakewood High during the Senior Dance by the loud-speakers, where Felix electrocutes them, reducing the Worms to ashes.

The Great PunkinEdit

A Mongolian Death Worm is among the captive monsters which escape courtesy of a power failure. It is seen answering the Troolis's call. It was presumably recaptured with the other monsters.



The Mongolian Death Worms attack the Senior Dance

Mongolian Death Worms are carnivorous and attracted to even the slightest vibrations. Once they detect vibrations, they will take the source to be prey, and either drag the source underground and devour it, or burst to the surface to devour the source.



Mongolian Death Worms resemble giant, red worms with sharp teeth.

Special AbilitiesEdit

The Mongolian Death Worm is a Class 1 burrower which is very sensitive to vibrations; and any pieces of a Mongolian Death Worm's body remaining if it is killed will grow into new worms in under a minute.



The Mongolian Death Worm attacks the construction site

Mongolian Death Worms are blind, and are vulnerable to explosions and electrocutions.


  • The Mongolian Death Worms in the show are much bigger than the ones sighted in real life.
  • The Mongolian Death Worms from the show are similar to the Graboids from Tremors.
  • The Mongolian Death Worm's profile on the Troop Grid states that there are no monsters of this species in Troop captivity. However, one was captured by the Lakewood Troop before The Great Punkin.
  • The Mongolian Death Worms are one of the few monsters to kill a human onscreen
Season 1 Monsters

Do The Worm: Mongolian Death WormSnark
Forest Grump: Dryad
There Is No "I" in Monster Hunter: Fire SalamanderGleegorRepticore
Welcome to the Jungle: Oscillating Rainbow SlugBasilisk
Pajama Game...of Death: Vespinox
Taming of the Cube: Gelatinous Cube
No More Master Nice Guy: DoulosHelmatrop
The Great Punkin: DankerRatadonVespinoxKaijuOscillating Rainbow SlugBasiliskTail MonsterGibbering TroolisMongolian Death WormRepticore
Tentacle Face: KaijuBehemothScreaming Tree Weasel
Lost in Translation: Borlak
The Good, the Bad, and the Ickie Doll: Vapor MonsterGleegor
The Substitute: Locht
Unpleasantville: Swarm MonstersHive Monster

My Gus Is Back, and You're Gonna Be In Trouble: Estrine GorgFlying Ice SlicerEntrusian Snot SlugScab-Crusted GnarlDimension MitesHuggie BearQuadro-Gob
Speed: Eris FairieDimension Mites
I, Monster: One-Horned DiabloPeacock MonsterVercingetorix
A Moth to the Spotlight: Vampire MothSnark
Vampsters: Vampster
Snarked Up: GriffinSnark
Itty Bitty Baby Dragon: Dragon
The Wrath of the Wraith: Wraith
Hayley and Felix on the Side: HideocuteTwo-Headed Zylork
Double Felix: Peruvian Swamp Slug
Don't Talk to Dr. Cranius: Dr. Cranius
Batteries Not Included: Oculypse
The Next Stop: Lakewood: Quadro-GobLochtKaijuGelatinous CubeDimension MitesDryadOculypseVespinoxBorlakHive Monster