This one unlocks once you’ve solved 320 Riddles.
Slide under bars to your right and use the REC on the Switch above. Slide under another set of bars, race to the other side and slide under more bars before you’re crushed. Next, stand on the Red Panels to activate a game where you have to hit Question Marks with your Batarang a few times. Next use the REC behind you to push some boxes forward so you can throw Remote Batarangs above the gate in your way to hit Marks. Proceed to jump over the gap and climb up to the next puzzle. Use your Line Launcher twice to get to a place where you can use your Sequencer, then Line Launch out and to the right. Here, use your REC to push the boxes to the floor, then grapple up to the highest ledge. Use your REC again to push the boxes beneath you so you can proceed to the final part. Here you'll need to Line Launch 3 times without hitting the ground to save the hostage and get the Trophy.