Get in the elevator with the Batmobile to get to the next riddle, which as the name suggests, involves flight control. This whole riddle revolves around ejecting yourself from the Batmobile and hitting three pressure plates with Batman. It seems that you don't have to hit them at full speed while gliding, as merely pressing up against them at all will activate the plates. Remember to get a big boost with the Batmobile by going near the elevator and full throttling the vehicle as far as possible, making sure not to hit the edge.
The first plate is straight ahead and as soon as you eject, hold up to get Batman some height to hit it (especially if you don't have any upgrades). This will open up the gate to your right when looking at the first plate, and it's the location for the second one. So, do the same thing as with the first, but you'll need make a U-turn around the wall. The third one is a little trickier, but you will go down the same corridor as the second.
This time, however, you need to go through a small tunnel that is filled with deathtraps. As long as you don't move too much, you should be fine going through that. After hitting the third plate, the switch near the elevator will activate, showing you a green light similar to the second and fourth riddles. Switch to Catwoman and grab the key from the correct glass case to finish the riddle.
