Batman's Gotham

Robby decided to try the world of Gotham City as he knew more about Batman than Superman and it had a better rogues gallery. Huntress, Batgirls, Poison Ivy, Harley Quinn, Catwoman and the rest. All sexy and cool. Plus they were linked to the world of DC so he could hunt the other babes later.

But Robby had to choose which form to take in this world.

Would he be himself? But with the power of the Key to enhance him?

Would he replace one of the heroes? (Batman or Robin perhaps?) Walking on the side of justice and sex. With access to the JLA?

Would he replace one of the villains? (Joker and the rest)Without rules and horny, what a mix. With sexy underground access.

Would he take the form of a new hero or villain?What would it be? Who would he be?

What would Robby do next as he entered the world of DC's Batman?