Fellow cheats
You can have 9999xp and 9999 upgrade points
The link below has the guide which is written by someone else and has detailed screenshots...I tested ONLY on US version and it works
http://bruteforcesavedata.forumms.net/t37-batman-arkham-originsguide-addedYou will need to download bruteforce savedata for this
http://tinyurl.com/BruteforceSaveDataThis program has built in Batman:AO cheat but it doesn't work. The only was it to make it work via manual hex editing. In that forum link above check the post by a s4u which tells additional steps you need to take.
Only downside is in-game it keeps telling you that upgrade points are available....even when you're fully decked out.