I was looking for how to get to the 100% savegame, this is what you have to do and how to achieve it:
Story mode -> complete the main batman story
Side missions
http://www.gamefront.com/batman-arkham-city-side-missions-guide/
Upgrades and collectables, Riddler trophies and Riddler solutions
http://segmentnext.com/2011/10/18/batman-arkham-city-riddler-items-guide-riddles-trophies-cameras/
Others
http://wikicheats.gametrailers.com/Batman:_Arkham_City_-_PC_PS3_XB360/Riddler’s_Revenge
-> check the menu at the top
Hope you have everything you need to achieve those 100%
