His Joker makes you wish they will allow Kevin to flex his acting muscles more instead of constantly voicing 'the big scary guy'.
I remember all the complaints about that. I didn't mind martial arts Joker because it felt in character for him to have a style was wild, unpredictable, monkey style to it. Penguin leaping 30 ft into the air is another matter though but I didn't hate it.
I'm just slightly disappointed that with all the martial arts it didn't occur to them to introduce Lady Shiva, Richard Dragon, Cass Cain, David Cain, Bronze Tiger and other marital arts characters.