Rocksteady and WB Games Montréal's Batman: Arkham series helped redefine the Dark Knight and the superhero genre in gaming, with several memorable boss fights spanning its main entries. Arkham Asylum laid a solid foundation, with both developers later getting more creative on what challenges Batman's famed rogues gallery would pose him.
Source:https://www.cbr.com/batman-arkham-games-hardest-bosses/