In Jason's case, it's pretty much averted as it's not that different from his childhood in the main universe, and Tim is a genuinely nice kid who tries to rein in his older brothers. Downplayed with the Robins who are petty criminals but ultimately just kids dealing with rough circumstances life has handed them.Unlike most of his incarnations pre- Two-Face's transformation, here he is a smug sexist who tries to cheat on his wife with Selina, cares little about the Serial Killer plaguing Gotham, and he accuses his best friend, Bruce, of being Jack the Ripper, with the implication that he's deliberately framing him just because Selina preferred Bruce over him. Jacob Packer is a default case of this, since he isn't the Ripper here.Even if his methods are questionable, they are in line with his time. Hugo Strange here isn't a supervillain as well, but a psychiatrist and the Director of the Arkham Asylum who is trying to help the Police to catch the Ripper.Ivy isn't a super-villainess here, but only a Belly Dancer and an occasional prostitute.Selina Kyle is not a master thief in here, hence her more nuanced nobility.Even if this version of Bruce and Selina haven't received quite the degree of extensive exotic training as their main universe counterparts, that's still pretty damn impressive.

Adaptational Badass: Commissioner James Gordon is a fighter who is demonstrably superior to both Batman and Selina Kyle.

Adaptation Name Change: Poison Ivy is renamed 'Ivy, the Plant Lady' in this movie, although Sister Leslie calls her Pamela, and a reference is made to an Isley case, suggesting her real name is still Pamela Isley.

Also, the film seems to draw ideas from the comic's sequel, Master of the Future, as well as the original story.

Adaptation Expansion: Selina Kyle, Poison Ivy, Hugo Strange, Leslie Thompkins, Dick Grayson, Jason Todd, and Tim Drake are in the movie, whereas they weren't in the comic.

Actionized Adaptation: The movie adds several action sequences and fight scenes that are not in the original comic.

Jack's dialect in the 'Dear Boss' letter is much different than the one Gordon uses.

The Cock Robins state that they've got nowhere to go, or that their homes are worse than living on the streets.

James Gordon/Jack is mentioned as having burnt the 'sin' out of his children as he did his wife.

Selina Kyle fled her abusive father as a girl, and was raised in Sister Leslie's orphanage.

Voice actors include Bruce Greenwood reprising his Batman: Under the Red Hood and Young Justice (2010) role as Batman, Jennifer Carpenter as Selina Kyle, and Anthony Head as Alfred Pennyworth.

It pits a Victorian-era Batman against Jack the Ripper. A 2018 movie in the DC Universe Animated Original Movies line, Batman: Gotham by Gaslight is an Animated Adaptation of Brian Augustyn and Mike Mignola's Elseworlds comic of the same name.

Gotham by gaslight mike mignola