Magic: The Gathering is full of slime creatures of all kinds, but the Mwonvuli Ooze is a particularly evocative example.
In an episode of the Super Mario Bros Super Show, Luigi gets possessed by a slimy spirit, but Ernie Hudson shows up to lend a helping hand.
The Rutans, from the Doctor Who serial "The Horror of Fang Rock," are a race of green slimes, and mortal enemies to the Sontarans.
The Doctor's most enduring enemy, The Daleks, are genetically engineered blobs encased in polycarbide armor.
The Third Doctor serial "The Green Death" concerns a maggot-spawning green slime affecting miners in South Wales.
Salvo the Slime is the boss of the first world in Super Mario World 2: Yoshi's Island. Formerly a lemon drop, Salvo became slime after being transformed by the "Magikoopa" Kamek.
In the Mega Man series, Bio-Devils are cycloptic robots encased in a malleable jelly.
The Sticker, a Marvel Comics character and enemy of Speedball, wore an unusual suit that could secrete experimental magnetic glue called "Magno-Fluid", encasing his body in mucilage. After a confrontation with Speedball in an abandoned button factory, Speedball managed to rip off the suit's helmet and seemingly drowning The Sticker in the substance. However, The Sticker returned years later, seemingly without his suit, to join the Speedball Revenge Squad, stickier than ever.
The Oily Maniac, a film produced by the legendary Shaw Brothers Studio, tells the story of a man with polio who uses a magical spell to transform himself into a living oil, which he uses to become a bloodthirsty vigilante.
In the film Slime City, Green Himalyan yogurt made from the remains of a crazy dead cult leader turns mild-mannered Alex into amurderous orange ooze creature whose hunger can only be slaked by human blood.
Toho Studios' The H-Man concerns sewer-dwelling, radioactive monsters with liquid bodies.
In Dogora, radiation over Japan creates floating, amoeboid man o' wars with a hunger for carbon-based matter.
Clarke Ashton Smith's Ubbo-Sathla is an enormous mass of protoplasm resting deep inside a frozen grotto beneath the Earth's surface. It guards a set of tablets containing knowledge of the Elder Gods.
Abhoth is dark grey protean ball of flesh said to be the ultimate source of all abominations. It's constantly incubating evil life forms in all imaginable appearances.
The monster in X: The Unknown is an amorphous mound of brightly shining mud from beneath Scotland.
Clayface is one of Batman's most popular and persistent enemies. So popular, in fact, there are six of them.
Drawdo is a boss in the game Wild Arms 2. It's a "shapeless slime monster" composed of leaking oil and fish parts.
The Greedy, from the sad and strange Raggedy Ann and Andy's Musical Adventure, is a gelatinous stream of shapeshifting candy doomed to perpetually eat itself because it's "without a sweetheart".
Mutagen Man from the Teenage Mutant Ninja Turtles franchise was formerly mailman Seymour Gutz, until he fell into an open vat of Shredder's retromutagen ooze. Now only a living pile of vital organs, he wears a special containment suit to keep his parts together.
In Wonder Woman #151, "Wonder Girl Vs. The Teenage Monster", Wonder Girl battles a yellow slime from outer space with the ability to take the form of everything it digests. After eating a number of Rock N' Roll records, it begins to serenade Wonder Girl with
romantically charged song lyrics. When it ingests both a nuclear warhead and an atomic submarine, Wonder Girl reasons the only way to stop it is to have it eat a time machine. An android time machine is
then built in the Amazon Time and Space Laboratory on Themyscira to look exactly like Wonder Girl. Immediately after the monster touches it, it transports itself far into the future where the Earth is a smoldering ball of fire. Wonder Girl wakes up to discover the whole affair was a dream born from fantasizing about having a boyfriend.
In Adventures of Superman Annual #1, Superman must battle the entire population of Trudea, Canada after being congealed together into a formless mass called The Union by the alien Hfuhrhurr, named after Steve Martin's character in The Man With Two Brains.
Disney's 1997 remake of The Absent-Minded Professor turned Professor Brainard's invention of flying rubber into a of sentient, playful creature.
The Horta, from Star Trek's "Devil in the Dark", are silicon-based creatures from the planet Janus VI. Feeding on rock, Hortas sustain themselves simply by tunneling. Kirk and Spock encounter a Horta mother while investigating the deaths of several miners on Janus VI, where it burns the message, "NO KILL I" into the ground. Spock discovers the creature was behind the deaths as their tunneling was destroying its eggs.
Ooze-It was a rubber monster toy from 1975, made by Imperial Toys' Ooze-It Incorporated. The idea was to remove its head, fill the body with a red slime, stick it back on and give it a squeeze. The slime would then pour from its facial orifices.
John Halkin's novel Slime regards amphibious bioluminescent jellyfish with deadly stings that ooze out of the ocean in deadly hordes to terrorize the coast of Britain.