Unlock Hush and Ras Al Ghul
These two characters are unlocked when you beat the game with the corresponding task completed.
Rescue ALL 25 civilians in the game. To find out which levels you still need to rescue a civilian look for the small face with either a happy or sad face indicating whether or not you still need to rescue them.
Unlock Ras Al Ghul:
This villain whose name means 'The Demon's Head' is unlocked when you have collected ALL 300 of the mini kits. There are 10 in each of the 30 levels.
Added by: Sanzano Oct 1st 2008, ID#9234