In 1946, a sequel titled Devil Bat’s Daughter was released and The Flying Serpent (also 1946), starring George Zucco, reworked elements of the story. The movie stars Bela Lugosi, Suzanne Kaaren, Guy Usher, Yolande Mallott, and the comic team of Dave O’Brien and Donald Kerr.
” …the dialogue in The Devil Bat isn’t particularly well-written, which becomes obvious when anyone other than Lugosi tries to deliver it. As he’s done many times before, Bela Lugosi brings an air of respectability to a film that, without him, would have quickly drifted into obscurity.” 2,500 Movies Challenge
“It’s not hard to see why the whole affair became something of a cult classic in the ensuing, public-domain-ridden years, between Legosi, an absurd plot, a number of stiff performances, and a French maid, and I suppose those elements hold up well enough but are presented with so little enthusiasm that they become largely neutered.” Battleship Pretension
“The Devil Bat is in the same league as the likes of The Vampire Bat, though it doesn’t seem to take itself so seriously. Whilst thoroughly ludicrous, it is also pretty solid entertainment and, at a skimpy 72 minutes, far from outstays its welcome […] Endearing hokum.” Behind the Couch
“Everything about The Devil Bat is mediocre. The B-list actors hamming up their over-obvious dialogue. The way the same footage of the bat emerging from Carruthers’ window is recycled multiple times. The cornball rubber-bat-on-a-string “special” effects and the creature’s obnoxious shriek, which sounds conspicuously like a monkey’s.” Blu-ray.com
“Despite […] bargain-basement flourishes, The Devil Bat has a sublimely weird ambience and is unquestionably mesmerizing, due in large part to Lugosi’s intensely creepy performance as a man driven to murder by his warped sense of wounded pride.” DVD Beaver
“The preposterous story is great fun, as Lugosi bumbles in his secret lab and makes ironic comments to the young men slapping his lotion on their necks: “Over the jugular, please!” […] A reporter and his sidekick take on the job of tracking down the monster bat; Yolande Donlan (Director Val Guest’s longtime spouse) is a saucy French maid. But the show is Lugosi’s all the way.” DVD Savant