If Batman walks inside Langstrom's lab after this side mission, he discovers Francine's body gone and a blooded painting on the broken window which says "Forever my love" implying that she became She-Bat. If the date on the console or computer the game is on is changed to 31/10/15 (Halloween), grappling around buildings will eventually make the Man-Bat jumpscare occur once again. Returning to the Gotham City Police Department and speaking to Officer Boulden will reveal that Kirk Langstrom apparently morphed back into Man-Bat and broke out of his cage with Cash firing at him but missing due to the speed at which he flew.