Batman and Catwoman Story Completed on Normal and Newgame plus unlocked.<br />
<br />
Riddler Hostage 4 - Intellectual - 30G<br />
Rescue the fourth hostage from Riddler.<br />
<br />
Complete the Riddlers room to rescue the hostage and the achievement will unlock.
Batman Arkham City - Riddler Hostage 4 - Intellectual 30G 04/06/2016
Batman Arkham City - Riddler Hostage 4 - Intellectual 30G