Not sure why 'The Flying Killer' isn't the main name, if that's what it says on the print (though, not sure where this print hails from)
http://hkmdb.com/db/movies/view.mhtml?id=11032&complete_credits=1&display_set=eng
I guess our director is wrong too.
The crash cinema DVD lists the director as Mo Kangshi, presumably because they've mixed it up with this