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In combat, a knocked-down enemy isn't out of the fight until you perform a Crouch + Takedown (Shift + Right Click on PC). It’s risky because it leaves you vulnerable, but it instantly K.O.s a downed baddie.

If you want to find everything, look for Riddler Maps hidden in each area. They reveal the locations of all trophies and riddles on your map, saving you hours of aimless wandering. For example, there's a trophy behind a destructible wall in the Utility Corridor near the Intensive Treatment Lobby. batman-arkham-asylum

This is common. Try updating your NVIDIA PhysX drivers or checking the "redist" folder in your game's installation directory to run the PhysX installer that came with the game. In combat, a knocked-down enemy isn't out of

Are you stuck on a or trying to find a particular Riddler trophy right now? They reveal the locations of all trophies and