That's a HORRIBLE crossover!

Exactly What It Says on the Tin. Let's start.

Attack on Titan with Animaniacs

The Warners turn it into a history lesson.

Angry Birds with South Park.

Very profane birds and launching children out of slingshots. Crosses the Line Twice.

A Song of Ice and Fire with The Producers.

edited 12th Sep '15 1:22:49 PM by mercuriesandrandomness

Bialystock and Bloom try to produce a Broadway musical while visiting Westeros. They try to cope with the Bizarre Seasons, and with civil disputes affecting production...

Two and a Half Men with Transformers

edited 12th Sep '15 4:31:02 PM by Berrenta

We already have a TF comedy, and it has Hentai involved. We don't need to ruin it with more crap!

Ojamajo Do Re Mi with Ruby Gloom and High School Dx D.

edited 12th Sep '15 5:03:05 PM by NegaKingKix

Moe magical girl anime about witches fighting against Lucifer.

A Softer World with Katawa Shoujo with Go! Princess Pretty Cure

edited 12th Sep '15 6:27:45 PM by mercuriesandrandomness

Moe anime with lots and lots of Black Comedy and yet, handled tastefully, in a way.

Akira meets Steven Universe meets Darkwing Duck

The gems set off WWIII, and the only ones who can save the world are superpowered ducks.

Fiddler On The Roof with Danganronpa with Veggie Tales.

A musical in which Russian veggies are paired up, with Makoto Naegi as the Matchmaker.

Mario Kart with The Hunchback Of Notre Dame

A small-scale "Magical Racing Tour" remake.

Metal Gear Solid with South Park

FOXHOUND turns out be aliens who are only antagonistic because they found out Nicolas Cage existed. Its all done in paper cut outs.

Black Books and Steven Universe.

edited 12th Sep '15 9:54:55 PM by trashconverters

Bernard turns out to be a major villain.

Scribblenauts with Ancient Aliens & Family Guy.

edited 13th Sep '15 5:35:49 AM by Spinosegnosaurus77

Stewie uses Maxwell's notepad to create aliens used to influence history.

The Matrix with Kingdom Hearts with The Smurfs

Neo teams up with the Destiny Islands Trio to defeat Gargamel.

Gravity Falls with Sesame Street & Pearls Before Swine.

edited 13th Sep '15 6:41:35 AM by Spinosegnosaurus77

A Live-Action episode where Bill casts the team into the television and Anyone Can Die due to cartoon violence. All brought to you by the word Mind Fuck.

Tosh.O meets The Jetsons and ReBoot

The Jetsons get into online sports, but get into some accidents while a painfully obnoxious narrator riffs on them as the audience pretends to laugh.

Soul Eater meets Tiny Toon Adventures

edited 13th Sep '15 7:07:53 AM by TheKaBlammer

Buster & co. fight demons (sorry for the half-assed example, but I was 'd and meant to respond to )

The Simpsons with Zoboomafoo & Calvin and Hobbes.

edited 13th Sep '15 7:11:57 AM by Spinosegnosaurus77

Calvin and Hobbes investigate the wildlife of Springfield.

The Picture of Dorian Gray with Ib with My Immortal

edited 13th Sep '15 7:27:17 AM by mercuriesandrandomness

Ib's sexual escapades inside Dorian Grey's painting, as penned by Tara Gilesbie.

Mad Max: Fury Road and Teletubbies.

The Teletubbies are instantly obliterated.

It's a Mad, Mad, Mad, Mad World with Planet of the Apes at the Disney Theme Parks.

edited 13th Sep '15 1:46:08 PM by Spinosegnosaurus77

Romantic ape comedy!

Hetalia: Axis Powers with Lolita with A Rush of Blood to the Head

edited 13th Sep '15 2:27:22 PM by mercuriesandrandomness

Feliciano diddles a girl with "Clocks" playing in the background.

The Island of Doctor Moreau with Avatar & Ecco the Dolphin.

Ecco must prevent Doctor Moreau from experimenting on the Na'vi.

Monsters, Inc. with Resident Evil

edited 13th Sep '15 4:26:31 PM by Berrenta

The monsters con children into playing the game in order to produce the screams that power Monstropolis.

Assassins Creed and Monty Pythons Flying Circus.

Eizo kills the parrot and goes to Spamalot.

Inu Yasha meets Jimmy Neutron