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Not tested. Don't have the game anymore.

Feel free to post if it works / what trophies you get.

Since first posting, this has been confirmed as working, so some users have been so helpful as to make and post their saves at different parts of the game to help out other users.

Save at the end of the game on Hard difficulty - Credit to edge4eva32

Save at 239/240 Riddler Trophies - Credit to edge4eva32

Another platinum save, but for the Game of the Year edition - Credit to WhatsaN00B
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Based off of user's tests, you are able to get all of the trophies for the challenges, by completing one (1). Aswell, you can get the Perfect Knight and World's Greatest Detective by scanning the Warden's Office.

Will be uploading more as I find time and such.

Can you Sync it?

Yes. /Text limit

Awesome... Thanks for replying ))

No problem. The main trophies that you cannot sync are the ones you get by swapping TROPUSR data or w/e. These actual save files work fine.

Hey did you manage to get all the trophies to pop up? And if so how?

I don't have the game still, so I have not tested at all. Try simply doing a challenge as somebody said thats what they did, and they got all of the challenge based trophies.

I was the one that did that, but I only got challenge trophies, not story based ones or any others. Not even the riddler ones

Ah. Okay. Not sure. I had done the platinum legit and then just decided to upload the save to see if it could benefit the community.