Every single character from the Ask a ZNP strips from the webcomic Monsterful falls into this category, you get from the main ZNP (zombie ninja pirate) to a VSV (Vampiric Spartan Viking), PGS (Perverted Ghost Samurai), PHC (Psychotic Homunculus cyborg) and the list goes on.
Unsounded Sette's a thief-child with supernatural sensitivity. Duane's an eloquent zombie sorcerer. Together they run into a lot of trouble.
Dave's bro is a ninja puppeteer rapper. He seems to make a living by combining these talents... and also making puppet porn videos.
Dave himself is a time-travelling rapper half-swordsman, and Davesprite is the above back from the future and merged with an Exposition Fairy and a dead crow.
The prototypings. You see, whenever one of the main characters prototypes their kernelsprite with something, it causes all of the enemies they fight to take on some of the features of what was used to prototype. This leads to the characters fighting harlequin-cat-princess-squid-crow-dog hybrids.
Speaking of prototyping, the Troll Session's Black King has this trope in SPADES, thanks to the large number of players. He ends up as a Crab Beast-Giant Monster Spider-Sea Goat/Dragon-Blind Dragon-Frog Statue-Fairy Bull-Two-Headed Cyclops-Feral Cat-Virgin Alien-Egg Laying Insect-Lactating Musclebeast-Seahorse-Gargantuan Tentacled Elder God-King.
Troll Aradia Megido is probably the most guilty of this trope (to awesome effect!) as at one point she is (in order of occurrence) an Alien Troll Psychic Ghost Frog Gamesprite Time-Travelling Robot. That is, until she reaches her God-Tier... which actually reduces the number of things she is, being merely an Alien Troll Psychic Time-Traveling God Fairy.
Meenah is starting to rival Aradia in terms of ridiculousness - she's an alien punk rebellious fish-princess ghost living on the moon. Oh, and in another universe she is a psychic evil alien fish-empress, or Fish Hitler.
Jack Noir - a dog/bird/harlequin/cat/squid/psychopath/Physical God.
Goats: The comic. For example, in the story arc "Infinite Typewriters", a cyborg fish is incensed by the movie "Good Hitler vs. Space Hitler", sets a goat's magical underwear on fire and embarks with a foul-mouthed baby chicken on an interdimensional journey, using a singularity stolen from a pair of grey aliens' spaceship to build a potato-powered teleport robot which burns holes in the walls of reality with demon matches from the Mayan underworld. Features a headless corpse with a robot arm used as a sort of prosthetic body by the baby chicken, a bisexual ninja with exploding Oreos, infinite monkeys, the Starbucks at the center of the multiverse, and lesbian corn.
From the webcomic xkcd comes this "fragment" of action adventure involving a damaged space station, a volcano, motorcycles and dinosaurs. Oh, and Janeane Garofalo.
This one isn't an example of the trope by itself, but some of the mental images you'll no doubt get in your head while reading it definitely are. Also counts as a Deconstruction
The Adventures of Dr. McNinja is about an Irish-American ninja who is also a medical doctor, with a gorilla for a receptionist, mentoring an orphan boy raised by bandito scientists. The boy has an impressive mustache, is a crack shot with his revolvers, and rides a velociraptor. He (Dr. McNinja, not one of the others) once fought an opponent who was armed with chainsaw nunchucks. There's a Story Arc devoted to (in the completely accurate words of the author) "GhostWizardVampireZombieHeadlessHorseman nonsense".
As an April Fool's joke, Dan, Mitzi, Dark Smoke Puncher, and Gordito all die from "their one weakness... Bullets. From a gun." Shortly afterwards they all rise from their graves "as ninja pirate robot monkey clown bandito werewolf zombies!" How CRraAAaaZZzzyyyyyy!. Are we having a Trope-orgasm yet?
The good Doctor's adventures are one of the few places where the question "Are dinosaurs immune to zombies?"note YES can be asked and make sense in context. Oh, and the zombies in question are ninjas too.
The side advice column "Ask Red Mage" also engaged in this gratuitously, eventually culminating in a Ninja riding a Pirate-Jedi-Cyber-Dinosaur on a Hoverboard versus a horde of Abraham Lincoln Clones at the Febreeze factory.
Gunnerkrigg Court is usually pretty understated. This just makes instances of this trope stand out even more, such as the time Annie escapes from robots by riding on the back of a Big, Badass Wolf (who is actually a toy possessed by a fox demon thing). Or the time the trickster-god beech-slaps the eight-foot-tall tree-armed wolf-man. But what really takes the cake is the buggy drawn by a robot horse quoting Milton's Paradise Lost.
Robot laser cows that shoot lasers from their eyes and mow the lawn.
Laser Cows. Just like real cows. Only with lasers. And snark.
The OotS strips appearing in Dragon Magazine and Snips, Snails, and Dragon Tails feature a vampiric half-dragon half-troll lycanthropic fiendish snail with psionic powers. Tremble at its illogical glory!
In one of their semi-affectionate riffs on Michael Bay's... distinctive style, Faulty Logic brings us Bay's own pirate cyborg pterodactyl. In fact, Faulty Logic is no stranger to this, although "squirrel" has an odd way of finding its way into the mix.
Dumnestor's Heroes: Early in their adventure, the heroes comes accross a Necromancer who wants to animate ancient robot ninjas (well, they're probably more like cyborgs) to create Zombie Robot Ninjas. Later, a village is raided by Vampire Pirate Monkeys. The comic has a good laugh at all this in this strip.
Axe Cop is full of these. For one, there's a half dinosaur, half avocado, flute-wielding cop with a unicorn horn that grants wishes. And that's just The Lancer. It also contains a vampire werewolf shark crab wizard ninja from the moon and his brother, a vampire wizard ninja swordfish with fire powers. Even Axe Cop's mustache and beard have practically qualified in one of the styles he once wore: Crazy pizza hair with a super curly beard and mustache with a robot ghost inside. And in at least one case, it's not even easy to tell what the parts are supposed to mean: the Vampire Man Baby Kid.
See this picture◊. (In order, from left to right, top to bottom: total madness everywhere.)
One of the side heroes in Grrl Power is Dabbler who, in the words of the author is an alien mutant demon martial artist cyborg psionic tinkerer. That doesn't even cover the succubus and doppelganger issues.
The two recurring Abyssal villains are a Mexican mummy/sorcerer wielding soul-encrusted chainsaw katars and a blind Musical Assassin rockstar. At one point they got backup in form of a couple ghosts (with necrotic energy gun keyboards) and a five-armed patchwork giant drummer.
Elegant Nova of Progression's henchmen include a pheromone-emitting hippy android and a cyborg bandito/raptor transformer, while she herself is a magitech robot that transforms into a giant robot sphinx.
One of Marena's acquaintances is a shape-shifting cowboy martial artist.
ThisDork Tower takes a game revolving around this concept Up to Eleven, and comes up with "alien dinosaur zombie wizard ninja robot trickster pirates".