In a world where Grodd has opened up a time portal to feudal Japan, Joker ha become one of the daimyo's, ruling from a giant mechanized Arkahm Castle against the other Batman villains, who ALSO have crazy castles. If this isn't jumping the shark, I don't know what is! If you listen to the English dub, he is voiced by Tony Hale, famous for playing Buster Booth in Arrested Development.
Joker appears with his hair grown out into a large bun/ponytail, wearing his classic colours in a mixture of western and Japanese style clothing. This is a pretty dead-on representation of his appearance in the animated movie. They've got every detail down with the small exception that his inner vest (purple edging) has a geometric pattern in the movie that isn't on the figure. We can forgive this!