CROSSOVER MADNESS

 Here's my review of 1931's DAUGHTER OF THE DRAGON, which is a "spin-off crossover" in which Fu Manchu's daughter Ling Moy gets her own one-shot feature, and Fu himself is demoted to being part of Ling's support cast-- the opposite fate to the prose daughter's fate, since Fah Lo Suee is always subordinate to the prose "devil-doctor." Because Ling Moy has her own automatic stature by virtue of being the star, this counts as a high-stature crossover.

MONSTER MASHUPS #91

 Just stumbled across a manga called PRINCESS RESURRECTION NIGHTMARE, whose first story includes both a sexy vampire and a sexy werewolf.

ADDENDUM: I see now that this is a sequel to a slightly earlier manga series, simply PRINCESS RESURRECTION. An immortal "queen of monsters," Hime by name, gathers a small retinue of helpers: a vampire, a werewolf, and a human boy, Hiro, who becomes her servant after Hime brings Hiro back from the dead. The group ends up fighting various other monsters who challenge Hime's reign. After that series concluded, PRINCESS RESURRECTION NIGHTMARE revived the characters with a "mystery" angle, in that they come together but don't remember their shared history.

CROSSOVER MADNESS

 

In a 1997 episode of DIAGNOSIS MURDER, "Hard Boiled Murder," Joe Mannix gets to solve a case left unsolved on his old show, with the help of Doctor Mark Sloan. 

NULL-CROSSOVERS #11

 Another of those "only on the cover" crossovers between these now forgotten luminaries (left to right) WILLIE, GEORGIE, MITZI, and slightly better known PATSY WALKER.

JUMBO COMICS did a couple of these before SHEENA essentially took over the title. Going right to left, the people behind Santa are a comical schmo named Uncle Otto (by Will Eisner under a pseudonym), the oddly named cowboy hero "Wilton of the West," Bob Kane's "Peter Pupp," and three kids, I think from separate strips (but I'm not interested enough to check).

CROSSOVER MADNESS

 

Here's another item that I deem both a "monster mashup" and a "crossover," but with a little more emphasis on the crossing of different franchises. DARK SHADOWS/VAMPIRELLA is pretty dopey overall, but its writer does work in a lot of familiar icons. Vampirella and Barnabas Collins (who was appearing in a movie remake the same year this Dynamite comic was published) are the stars, but were-creatures Quentin Collins and Pantha comprise a "subordinate ensemble," while the villains are a reborn Lady Bathory (the historical one, not the comic book character) and Jack the Ripper, whom Bathory changes into another fully supernatural vamp. Oh, and Dracula shows up at the end. Eh.

CROSSOVER MADNESS

 Just finished a write-up here, on this very peculiar all-independent "crossover comic," SHI/ CYBLADE #1.

MONSTER MASHUPS #90

 The overblown VAN HELSING combines versions of Dracula, the Frankenstein Monster, Mister Hyde with a werewolf, all of whom count toward the "monster mashup," though only the first three make the film a crossover.