Trophies that are out in the open can simply be scooped up, and solving riddles is a matter of knowing what to look at. Trophies hidden behind destructible walls can be accessed by eliminating the wall. Depending on the position of the flimsy segment, you can use the Batmobile turret to blast walls, you can utilize Explosive Gel, or you can forcibly glide right through them.
Looking around with Detective Mode reveals the solution for many puzzles. If there’s a green platform, you may need to stand (or park) on it while looking for a target; multiple green platforms are a signal that you need to trick a robot into triggering them in synch with you. Question mark triggers often need to be struck with the Batarang or Remote Controlled Batarang as the ultimate objective of a puzzle.
For some two-location puzzles, the Batmobile’s Forensic Scanner pulse can reveal traces of Riddler’s work.
Follow the trail to its destination to reveal a secret area.
Riot bombers are poor saps wired by Riddler to explode, but you can disarm them and save their lives with an electrified Remote Batarang.
First, pilot the Remote Batarang at street level to reveal which looter was booby-trapped by Riddler.
Then, pilot a Remote Batarang through an exposed electrical current…
…before piloting the sparking Batarang into the combustible thug, disarming the explosive.
Some other puzzles also require steering a Remote Batarang through some exposed electrical element before striking a target.
More complex puzzles require you to juggle several Gadgets, sometimes including the Batmobile.
Batman can’t walk across an electrified floor, but a Riddler robot can.
Using the Voice Synthesizer, the robot is ordered to retrieve a Riddler trophy.
The sentry gun that would otherwise chew the robot to bits with gunfire is temporarily blinded with the Remote Hacking Device.
The Batmobile’s Power Winch is used to carefully electrify and open a door underneath the Film Studios.
Inside, another Winch stop can be latched upon. From here, a Batmobile EMP briefly disables the force field just overhead…
…which grants a short window to eject and immediately deploy a Line Launcher perk before the force field returns. From up here, it’s a cinch to nail three Riddler switches with the Batarang, disabling the shield for good and unlocking the Riddler trophy.