Ben 23 omni This article belongs to Dimension 23 in the Classic Continuity
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Muck-A-Muck is the Omnitrix's DNA sample of a Polymorph from the planet Viscosia and the Dimension 23 equivalent of Goop.


Muck-A-Muck mostly resembles Goop in Omniverse, except his body is blue, his eyes are light blue, and his Anti-Gravity Projector is gold. The Omnitrix symbol on his Anti-Gravity Projector is blue with a gold outer casing.

Powers and Abilities

Muck-A-Muck is indestructible, making it difficult to defeat him by attacking his body.

Muck-A-Muck is able to generate and shoot slime from any part of his body. The slime he generates can either be acidic[1] or adhesive.[2] He can shoot it in continuous streams similar to a water hose[1] or in blob-like projectiles.[2] He is even capable of spitting out either slime or acid despite having no visible mouth.[2][3]

Muck-A-Muck is capable of making himself[4][5] and his touch acidic at will.[6][7] His acid is also able to dissolve a large variety of materials.

Muck-A-Muck can stretch, bend and deform himself into any shape or form.

Due to being made of slime, Muck-A-Muck can hold objects inside his body. He can also do this with creatures to protect them.[8]

Muck-A-Muck can produce multiple slime tentacles from his body to grab multiple opponents.[9]

Muck-A-Muck can regenerate and rebuild himself with ease.

Muck-A-Muck possesses enhanced strength and can increase the impact power of his attacks by stretching himself backwards and using the recoil to launch enemies with a single punch.[10]

Muck-A-Muck can breathe underwater, as seen when Goop was in the sewer waiting to ambush Ben Prime.[11]

Muck-A-Muck can change his density depending on his desire.[DM 1]

Muck-A-Muck can pass under an enemy's foot in order to make them slip.[12][9]

Muck-A-Muck can stick and scale on walls without difficultly.

Muck-A-Muck can survive in intense heat, such as the one on his home planet Viscosia.[merchandise 1]

Muck-A-Muck can mimic the shape of simple objects to fool an opponent.[merchandise 2]

Muck-A-Muck has movable eyes.[DJW 1]


Muck-A-Muck's Anti-Gravity Projector allows him to change his shape, form, length, width, and height at will, as well as granting Goop the ability to fly and levitate. If Muck-A-Muck loses his Anti-Gravity Projector, the Hero Watch can immediately generate a new one.[DM 2]

With his Anti-Gravity Projector, Muck-A-Muck has enough strength to dismantle a Techadon robot from the inside[13] and effortlessly subdue Magister Prior Gilhil, someone who could easily overpower an armored Osmosian.[14] Goop has even defeated both Gwen and Kevin in combat with both his strength and slime.

Muck-A-Muck can control and launch his Anti-Gravity Projector at enemies to attack them due to the edges of it being razor-sharp. In fact, if Muck-A-Muck is fast enough with his Anti-Gravity Projector, he can temporarily prevent a Methanosian from regenerating.[11]

Thanks to his Anti-Gravity Projector, Muck-A-Muck is capable of high-speed flight, being able to easily evade Trombipulor's shots.[15]


Muck-A-Muck is limited to his Anti-Gravity Projector controlling his body. If it is separated from him by more than two feet or turned off, Muck-A-Muck's body collapses into an immobilized puddle until it recollects it. He can only struggle to move since he cannot change shape or make appendages to move without his Anti-Gravity Projector.

Muck-A-Muck's Anti-Gravity Projector can be disabled by a shot from a Positron Blaster, which makes him spin around extremely quickly and then separate into multiple parts.[10]

Muck-A-Muck can be hurt if he is spun really fast in a centrifuge, which will cause him to begin separating into his constituent compounds.[16]

While running, Muck-A-Muck is not very fast and cannot outrun humans.[17]

Muck-A-Muck cannot regenerate if he is being continuously attacked.[1][9]

Muck-A-Muck is vulnerable to being blown away by a Geochelone Aerio's aerokinesis.[18]

Muck-A-Muck is vulnerable to suction, as shown when Goop got sucked into Trombipulor's nose.[15]

Muck-A-Muck is vulnerable to an Evolved Galvan's energy beams.[19]

Muck-A-Muck can be affected by a Nemuina's sleeping dust.[DJW 2]

Muck-A-Muck is vulnerable to being hypnotized.[DJW 3]

Muck-A-Muck is unable to control external forms of slime, such as those generated by Lepidopterrans, Sphoeroids, and even other Polymorphs.[DJW 4]


In It's a Mad, Mad, Mad Ben World: Part 1, Muck-A-Muck was mentioned when Ben 23 witnessed Ben Prime transform into Goop.

Naming and Translations

Language Name Origin
Russian Слизистый From слизистый, slimy
Spanish (HA) Babastein From baba, slime; and -stein, final syllable of Frankenstein.


Muck-A-Muck is play on the word muck, and the term "run amok", which means to cause trouble or to create mischief.


  • Each alternate counterpart of Goop has a different color and flavor.[DJW 5] For Muck-A-Muck, he is blue/blue raspberry-flavored.[DJW 6]
  • Muck-A-Muck's artwork was made on a livestream with Derrick J. Wyatt and dyemooch in 2020.[DJW 7]


Crew Statements

Dwayne McDuffie

Derrick J. Wyatt


Dimension 23 Aliens
Seen Aliens
Big BugBrainfrogBuild-A-GuyDino-MightyElectricyetiEye GuyFreezeghostFreezelizardHandy ManLightning VoltMr. MonkeyNighty KnightRollawaySpeedyquickTechno-BubbleToolboxxVomit Man
Unseen Aliens
Bat-DudeCharcoal-ManCopy CopyDog-NabbitFastcatFeedbackFish FingersFright FaceGiant-MansterHose HandsJellyFritzMr. MuckyMuck-A-MuckOrbit ManRathTeeny-WeenyWindy-Hindy
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