Hi guys, I just completed Batman AA to 100% and have all the achievements except for Biggest Bang (complete the game on hardest difficulty).
 
I now want to go back and finish the game on hard so I get this achievement, but I was wandering, is there a save + feature where I can start a new story on hard, but keep all my upgrades?
 
Thanks for any and all help, it will be much appreciated.

Nope. To my knowledge there is not.

That would make no sense at all. You could skip more than half the game.

Nope, if you have done the challenge rooms you have nothing to worry about anyway my friend

Ok thanks guys, I appreciate the help. Thats cleared things up, guess I'll just start a new save game :D
 
Thanks.