#or the Batfam reuning with him at the end

[nelkcats]

Box Bat

Fear him!

Batman is Box Ghost, the only reason he's obsessed with boxes is because he died in a warehouse explosion, and it's the last thing he remembers next to glimpses of his children.

He was undercover as a box deliverer to investigate the arms shipments that were arriving in Gotham, when he woke up in those clothes (the same ones he died in), and with no memories, he assumed that had been his job and committed to the bit.

Danny as a blue-eyed black-haired kid brings forth some feelings but he uses his perfect repression skills to ignore those feelings and commit harder on "Box"

The "fear me" is a mockery that he unconsciously makes to the Joker, even if he doesn't remember him.