Item description:

Finally, I have something worthy to share with you, guys, that hasn't already been posted on here.

One of the most annoying and time consuming trophies. All you have to do is defeat Riddler and initiate Knightfall Protocol. I tested the file, so it should work just fine.

Unfortunately, all other sidequests had been completed long before I joined the community otherwise I would have left one of each so that you could also get the rest.