Riddler Key Arkham Knight. Following the diagram it is on the side closest to the Riddler screen in the orphanage. Walk to the last glass case and use the last key to remove selinas collar gaining 2 waynetech points then exit back to the main hall of the orphanage.
You have to enter the garage with the Batmobile. Jun 27 2015 807am Riddler last key challenge is a retarded joke wtf where you thinking. Arkham Knight Riddler guide is essential if you want to solve all 243 Riddler puzzles.
This is probably the longest and most tedious missions in the game.
Arkham Knight takes part six months after the events of Batman. There are 10 Riddler Trials in Batman Arkham Knight. See the panel with bulbs under the ceiling and switch to catwoman. The Riddler has scattered hundreds of Riddler Trophies and Challenges all over Gotham in the form of his well known Riddler Trophies as well as Riddles.
