This episode was broadcast only one week after the death of Roddy McDowall (The Mad Hatter) on October 3, 1998. With that, it is also the last appearance of the Mad Hatter in the DCAU.
Robin says there was a search for "some old guy, Ghoul or something." This is in reference to Ra'as Al Ghul.
Uses the new animation style of all Batman characters and elements. used in The New Batman Adventures.
Bane mentions feeling Batman's spine crumble. This is a reference to the comics, in which Bane broke Batman's back.
The first Batman/Superman crossover since the three-part 'World's Finest' episode. Superman makes reference to that episode when he mentions Luthor's partnership with Wayne Enterprises.