Black Mirror isnt that hard as not much pcoded functions.
And yes IMS did a nice job on it but it was also handmade.
I dont say it is impossible but twhen u get f.e. Obscure or D-Day which have 27 or 34 pcoded functions you dont want to invest the time. Black mirror had 5 pcodes, the german one 7 or so dunno. but thats alot less.
there are some freaks that can surely crack sf3 fastern then that but todays crackers have a rl
