Goop BTOU 1
General Information
Species Polymorph
Home Planet Viscosia
Body Amorphous Fluid
Powers and Abilities
Abilities Shapeshifting
Acidic Slime
Slime Projection
Enhanced Strength
Enhanced Durability
Enhanced Agility
Enhanced Flexibility
Weaknesses Anti-Gravity Projector Dependency
Equipment Anti-Gravity Projector
Used By Ben Prime
Ben Delta
Ben 23
Ben 23'000
Alternate Counterparts Muck-A-Muck (Dimension 23)
Appears in Death of Ben 10
Ben 10: Reboot Revolution
Goop is the Omnitrix's DNA sample of a Polymorph from Viscosia in Earth-1010.


Ben Prime as Goop

Goop is a humanoid pile of slime that can take any shape at will. In his default state, he has a nose-like beak and an amoeba-like shape.

Goop wears an Anti-Gravity Projector above his head, resembling a white UFO disk. It helps him retain his shape and projects his voice, as if Goop was speaking through a static-filled radio.

The Omnitrix symbol is on top of Goop's Anti-Gravity Projector.

Ben 23 and Ben 23'000 as Muck-A-Muck

Muck-A-Muck is physically identical to Goop Prime, but his slime is coloured various shades of blue and his Anti-Gravity Projector is gold.

Powers and Abilities

Goop can change his size and shape at will, assuming various forms.

Goop can project slime, either by spitting it or shooting a slime trail from his hands.

Goop possesses powerful digestive acids, with great offensive potential. He can render his slime acidic, which is able to dissolve most conventional materials.

Goop is extremely durable and virtually indestructible. Physical attacks have little effect and energy attacks will harmlessly phase through him. In the event he is injured, he can regenerate himself.


In order to properly function on Earth, Goop wears an Anti-Gravity Projector. It gives him the ability to fly and greatly enhances his strength and shapeshifting capabilities.

Goop can throw his Anti-Gravity Projector akin to a flying disk, the edges being razor sharp.


On a planet with heavier gravity than Viscosia's, Goop is completely dependent on his Anti-Gravity Projector for even the simplest forms of motion. If he is separated more than two feet from it or it is turned off, he will become an immobile pile of slime.


Death of Ben 10

In Chapter 8, Ben 23 transforms into Muck-A-Muck to melt the metal casing covering Mad Ben's Power Watch.

Ben 23'000 used Muck-A-Muck to attack Apollo in Chapter 15, but before getting a hit in he was defeated with a fireball to the chest. Muck-A-Muck was briefly used later to fight Omni Apollo as Planetoid.

Ben 10: Reboot Revolution

Ben Delta used Goop in Chapter 6 to attack Time Breaker Ben, however he was defeated when the Time Breaker grabbed his anti-gravity disc and threw it into a lamppost.


Death of Ben 10

Ben 23

Ben 23'000

Ben 10: Reboot Revolution

Ben Delta (using Prime Omnitrix)

Death of Ben 10
Aaronbill3 Ben 10: Reboot Revolution
Act 1

Prologue - Chapter 2 - Chapter 3 - Chapter 4 - Chapter 5 - Chapter 6

Act 2

Chapter 7 - Chapter 8 - Chapter 9 - Chapter 10

Act 3

Chapter 11 - Chapter 12 - Chapter 13 - Chapter 14 - Chapter 15
Chapter 16: Part 1 - Chapter 16: Part 2 - Chapter 17 - Epilogue

Introduced in Act 1

Alien X - Buzzshock - ChamAlien - Chromastone - Clockwork - Diamondhead - Way Big - XLR8

Introduced in Act 2

Atomix - Armodrillo - Big Chill - Fasttrack - Goop - Gravattack - Lodestar - NRG - Snare-oh - Swampfire

Introduced in Act 3

AmpFibian - Arctiguana - Barrier Reef - Bloxx - Brainstorm - Cannonbolt - Ditto - Echo Echo - Eye Guy - Feedback
Geothermite - Ghostfreak - Gutrot - Heatblast - Hightide - Humungousaur - Jetray - Kickin Hawk - MindMatter - Sandbox
Spidermonkey - Stinkfly - Rath - Upchuck - Upgrade - Water Hazard - Wildvine

Ultimate Aliens

Ultimate Ben - Ultimate Big Chill - Ultimate Clockwork - Ultimate Echo Echo - Ultimate Fasttrack - Ultimate Gravattack
Ultimate Humungousaur - Ultimate Spidermonkey - Ultimate Upgrade

Fusion Aliens

Arctomix - Atomisaur - Big X - Camomech - Charmedge - Diamondactyl - Ectograde - Feedback Attack - Gecko Gecko
Gravattomix - Jawful - Snare-Chill - Tickin' Clock - XLRay - XLRtrack

Ben 10: Reboot Revolution
Death of Ben 10 Aaronbill3 Ben 10: Road Trip
Ten Over Ten Thousand - No Watch, No Problem!
Chapter 1 - Chapter 2 - Chapter 3 - Chapter 4 - Chapter 5 - Chapter 6 - Chapter 7

Prime Dimension
Ben Tennyson - Gwen Tennyson - Max Tennyson
Rook Blonko - Kevin Levin - Sella - Fistina
Magister Patelliday - Azmuth - Blukic - Driba
Professor Paradox

Delta Dimension
Ben Tennyson - Gwen Tennyson - Max Tennyson
Ben 10'000

Time Breakers: Time Breaker Tetrax - Time Breaker Ben
Techadon Degradations: Lenopan Degradations

Prime Dimension
Brainstorm - Chromastone - Clockwork - Goop - Gravattack - Grey Matter
ImmoBile - Jetray - Lodestar - Spidermonkey - Spitter - Stinkfly - Swampfire - Upgrade

Delta Dimension
Cannonbolt - Clockwork - Diamondhead - Four Arms
Grey Matter - Heatblast - Overflow - Stinkfly - Upgrade - Wildvine - XLR8

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