This idea Pokemon Rom Hack. I’d like it to be a Third Generation Romhack (Mainly LeafGreen) inspire of the fact that one 4th generation Pokemon gets named dropped.
The region is called Gotham
You place as Bruce Wayne, a ten year old. It is the two years anniversary of your Parents being gunned down in front of you by Pokemon thieves. After having a nightmare about it you run into the woods behind your house and fall into a cave where you befriend a Zubat, and decide to go off on a Pokemon journey, the Zubat becomes your starter Pokemon. Your Butler Alfred Pennyworth will function as both Bill and Oak, managing all the PC stuff for you.
The rival character is Selina Kyle, who’s starter Pokemon is a Meowth.
The evil team in this one is more like Team Rocket, just being interested in money, then latter Teams that are cults. It is called Team Umbrella, and it’s leader is known as The Empoleon of Crime. His real identity is Oswald Cobblepot, who trainer of Bird Pokemon who runs a Poke Stop called the Iceberg Lounge, that among other things houses the Ice Type gym. He won’t actually have an Empoleon on him though, this game’s roster should be limited to Pokemon you can use in LeafGreen.
The Gym Leader of the IceBerg Lounge’s gym is Victor Fries.
The other 7 Gym leaders include, Drury Walker, the Bug Type Gym leader, Joe Rigger, the Fire Type Gym Leader, and Lester Buchinsky, the Electric Type Gym leader. I like including the three filler bosses of the Batman 89 NES game in any Batman fan game ideas I come up with.
Pamela Isley, the Grass/Poison Type Gym Leader.
Jonathan Crane, the Ghost Type Gym Leader.
Jervis Tetch, the Psychic Type Gym Leader.
Natalia Mitternacht, Dark Type Gym Leader.
The Elite Four will be League of Assassins Members, Bane (Fighting type), Onyx (Rock Type) Bronze Tiger (Steel Type), and Lady Shiva (Dragon Type).
And the Champion will be Ra’s Al Ghul.
There will be an Unknown cave in the game where they are being researched by Edward Nygma who trains them exclusively, you can battle him but it’s not required.
It’s companion Game is Pokemon Cat, where everything is the same except you play as Selina and Bruce is the Rival. And a different Origin story, someone else will have to write that. And Holly Robinson (your friend with benefits) will replace Alfred.
I made a conscience decision not to shoehorn in every Batman villain, Black Mask, Two-Face, Deadshot, all ones that couldn’t work in this premise.
And that goes double for The Joker. There many great Batman stories with no Joker in them. So given the Joker overload of the Arkham Games I figured a video game Batman universe that opts out of forcing The Joker would be nice.