When Arkham City was released, there was a bug that when you exit the game your savegame files disappear.

I heard about the problem and I played the game without exiting.  At that point the fix was unknown, but now it is solved.  I already played most of the game but at one point the game just had to crash.

I fixed the problem now but I don't want to play all over again,I'm looking to download a savegame (somewhere around battling Mr. Freeze), or some cheats to skip lvls or so.

Up to now I've found savegames for PS3, and tried cheats from Arkham Asylum(modified), but neither helped.