Goop

Goop is the Omnitrix's DNA sample of a Polymorph from the planet Viscosia.

Ben as Goop
Goop is a humanoid pile of goo that can take any shape at will. Goop has an Anti-Gravity Projector that allows him to be mobile in Earth's gravity and also projects his voice.

In Alien Force and Ultimate Alien, Goop wore the Omnitrix/Ultimatrix symbol on his chest.

In Omniverse, Goop has a nose-like beak and he has an amoeba-like shape. His Anti-Gravity Projector has been redesigned and the Omnitrix symbol is on the top of it.

Albedo as Negative Goop
In Alien Force, Negative Goop looked exactly like Ben's Goop.

In Omniverse, Negative Goop is red and his Anti-Gravity Projector is white on the top with a red light on the bottom. Negative Goop's Ultimatrix symbol is on his Anti-Gravity Projector.

Powers and Abilities
Goop is indestructible, making it difficult to defeat him by attacking his body.

Goop is able to generate and even shoot slime from any part of his body. The slime he generates can either be acidic or adhesive. He can shoot it in continuous streams similar to a water hose or in blob-like projectiles.

Goop is capable of making himself and his touch acidic at will. Goop's acid is able to dissolve a large variety of materials.

Goop can stretch, bend and deform himself into any shape or form.

Goop can regenerate and rebuild himself with ease.

Goop 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.

Goop can change his density depending on his desire.

Equipment
Goop'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 Goop loses his Anti-Gravity Projector, the Omnitrix/Ultimatrix can immediately generate a new one.

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

Goop can control and launch his Anti-Gravity Projector at enemies to attack them, the edges being razor-sharp.

Weaknesses
Goop is limited to his Anti-Gravity Projector controlling his body. If it is separated from him by more than two feet or turned off, Goop's body goes completely inert 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.

Goop can be hurt by being spun really fast in a centrifuge, which causes him to begin separating into his constituent compounds.

Goop cannot reform if he is being continuously attacked.

In Alien Force and Ultimate Alien, because of his slime body, Goop's Omnitrix/Ultimatrix symbol could be easily pulled off, reverting Goop to normal and removing the Omnitrix/Ultimatrix from the user. In Omniverse, the Omnitrix symbol is on the Anti-Gravity Projector, which eliminates this weakness.

History

 * -|Alien Force=
 * Ben
 * Goop first appeared in The Gauntlet, where he defeated the blue Techadon robot.
 * In Darkstar Rising, Goop battled Magister Prior Gilhil.
 * In Good Copy, Bad Copy, Goop battled Negative Humungousaur.
 * In Undercover, Goop saved Cooper from some DNAliens.
 * In Birds of a Feather, Goop helped Simian escape from some guards.
 * In Fool's Gold, Goop appeared to battle Mayor Coleman.
 * In Simple, Goop was used to avoid getting hurt after being pushed off a cliff.
 * In Vreedle, Vreedle, Goop battled the Vreedle Brothers.
 * In Singlehanded, Diamondhead turns into Goop while Julie is using his hand as a weapon, disgusting her.
 * In In Charm's Way, Goop battled Charmcaster's Stone Creatures.
 * In Above and Beyond, Goop defeated Pierce.
 * Albedo
 * In Good Copy, Bad Copy, Negative Goop was roaming around a computer store.
 * Escaped
 * In Vengeance of Vilgax: Part 2, Goop escaped from the Omnitrix and hid in the sewers. He battled Swampfire before getting reabsorbed.
 * Vilgax
 * In Primus, Ben turned Vilgax into Goop and pulled the Omnitrix off his chest, removing the Omnitrix from Vilgax.
 * -|Ultimate Alien=
 * Ben
 * In Andreas' Fault, Goop escaped from a dungeon cell.
 * In Hero Time, Goop saved Julie from falling and battled Overlord.
 * In Deep, Goop failed to escape some fans until Gwen saved him. Later, Goop used his Anti-Gravity Projector to save Piscciss. Although Goop was atomized and spread throughout Piscciss' sea, he was able to pull Piscciss back together.
 * In ...Nor Iron Bars a Cage, Goop escaped a locked room and unlocked the door to let Gwen out.
 * In Viktor: The Spoils, Goop appeared as King Xarion was looking through the Ultimatrix for AmpFibian.
 * In Revenge of the Swarm, Goop battled a Victor Validus clone until he escaped.
 * In The Creature from Beyond, Goop saved Gwen and Kevin.
 * In Ben 10,000 Returns, Goop battled Eon's servants.
 * In Greetings from Techadon, Goop battled the yellow Techadon robot.
 * In The Perfect Girlfriend, Goop was trapped and tortured by Ssserpent until "Julie" rescued him.
 * In Catch a Falling Star, Goop broke into Carl Nesmith and Jennifer Nocturne's motel room.
 * In Night of the Living Nightmare, Goop battled Vilgax.
 * In The Beginning of the End, Goop defeated the Forever Knights.
 * Flashback
 * In Ben 10-Generator Rex: Heroes United, Goop appeared as one of the many aliens when Ben was explaining his story to Rex.
 * -|Omniverse=
 * Ben
 * In Blukic and Driba Go to Mr. Smoothy's, Goop battled Trumbipulor.
 * In Ben Again, Goop was used by 11-year-old Ben (in 16-year-old Ben's body) to find a clue pipe in a sink.
 * In A Fistful of Brains, Goop was defeated by Ultimate Albedo.
 * In It's a Mad, Mad, Mad Ben World: Part 1, Goop defeated Exo-Skull but was destabilized by Subdora. Fortunately, Goop's remains unintentionally created a means to track them down.
 * In A New Dawn, Goop appeared for a short time when Ben was cycling through his aliens.
 * Albedo
 * In The Ultimate Heist, Negative Goop was defeated by Terraspin while trying to retrieve the Polymorphic Crystal.

Appearances
Ben Albedo
 * -|Alien Force =
 * Ben
 * Season 1
 * The Gauntlet (first appearance)
 * Season 2
 * Darkstar Rising
 * Good Copy, Bad Copy
 * Undercover
 * Birds of a Feather
 * Season 3
 * Fool's Gold
 * Simple
 * Vreedle, Vreedle
 * Singlehanded
 * In Charm's Way (selected alien was Way Big)
 * Above and Beyond
 * Albedo
 * Season 1
 * Good Copy, Bad Copy
 * Escaped
 * Season 3
 * Vengeance of Vilgax: Part 2
 * Vilgax
 * Season 3
 * Primus
 * -|Ultimate Alien=
 * Ben
 * Season 1
 * Andreas' Fault (first reappearance)
 * Hero Time
 * Deep (x2)
 * ...Nor Iron Bars a Cage
 * Season 2
 * Viktor: The Spoils (cameo)
 * Revenge of the Swarm
 * The Creature from Beyond
 * Ben 10,000 Returns (intended alien was Rath)
 * Season 3
 * Greetings from Techadon
 * The Perfect Girlfriend
 * Catch a Falling Star (cameo)
 * Night of the Living Nightmare (dream)
 * The Beginning of the End
 * Flashback
 * Specials
 * Ben 10-Generator Rex: Heroes United (cameo)
 * -|Omniverse=
 * Ben
 * Season 2
 * Blukic and Driba Go to Mr. Smoothy's (first reappearance)
 * Season 3
 * Ben Again (11-year old Ben in 16 year old Ben's body)
 * Season 4
 * A Fistful of Brains (cameo)
 * Season 7
 * It's a Mad, Mad, Mad Ben World: Part 1 (accidental transformation)
 * Season 8
 * A New Dawn (cameo)
 * Albedo
 * Season 4
 * The Ultimate Heist
 * -|Comics=
 * Cartoon Network Action Packs
 * The New Order
 * Bad Boy
 * Double Trouble
 * Backcountry Battleground
 * Jail Break
 * Double Trouble
 * Chapter Books
 * The Dark of Knight (x2)
 * Others
 * Doom Dimension (Volume 2)
 * -|Online Games=
 * Alien Attack
 * Game Creator

Ben 10: Alien Force
Goop is a playable alien in the Nintendo DS version of the game.

Goop is initially unavailable, but is unlocked upon completion of the Warehouse 2-1 level.

Goop is able to stretch his limbs, deform his body in various shapes to attack and turn into a pile of slime to evade enemy attacks.

Goop is capable of throwing blobs of goo and spraying acid from his hands, and could rotate his feet around like helicopter blades to damage enemies.

Goop is not required to be used at all in order to complete the game.

Ben 10 Alien Force: Vilgax Attacks
Goop is a playable alien in the game.

Xbox 360, Nintendo Wii, PlayStation 2 and PlayStation Portable Versions
Due to the Omnitrix rebooting after Ben's abuse of the quick change feature during his battle with an animated Mr. Smoothy mascot, Goop was temporarily locked. Goop was reunlocked upon Ben's arrival on Terradino.

Goop has the ability to stick to slime-covered walls and wall jump, thus reaching otherwise inaccessible areas.

Goop is vital for progression on the Terradino, Mor' Otesi and Null Void levels of the game.

Nintendo DS Version
Only Goop and Swampfire were available on Ben's arsenal upon his arrival on Vulpin.

Goop is able to safely walk on the acid rain puddles littering Vulpin's surface and is the only alien form capable of defeating Darkstar.

Ben 10 Alien Force: The Rise of Hex
Goop is a playable alien in the game.

Due to the Omnitrix sorting out after Ben fiddled with it, Goop was temporarily locked. Goop was reunlocked at the beginning of Level 10.

Goop is able to turn into a pile of slime to fall through specially designated holes and to slide under incredibly small openings, thereby navigating areas Ben and all of his other alien forms are unable to access.

Trivia

 * Goop is a single celled-organism.
 * Each version of Goop has a different color and flavor: Ben's Goop is green/lime-flavored, Negative Goop is red/raspberry-flavored, Muck-A-Muck is blue/blueberry-flavored, Bad Goop is mint green/licorice-flavored, Mad Goop is orange/sour orange-flavored, Nega Goop is grey/black pepper-flavored, and Benzarro's Goop is purple/grape-flavored.
 * Goop is one of the five aliens who escaped from the Omnitrix; the others are Way Big, Ghostfreak, Chromastone and Spidermonkey.
 * Ben believes Goop's voice prevents others from taking him seriously.
 * When Goop speaks in Omniverse, a crackle of static is heard at the end of each line as if he is speaking through a walkie-talkie.
 * Goop's Anti-Gravity Projector isn't part of Polymorph biology; Goop has one due to the difference of gravity between Viscosia and Earth.
 * Goop's Anti-Gravity Projector became a substitute for the missing Anti-Gravity Multiplier on planet Piscciss.