Following a Batman: Arkham Knight Riddler guide is key if you want to reach 100% completion in the game, as Gotham is dotted with a huge 243 Riddler puzzles and it's hard enough just to find them ...

One of them involves Riddler Barley, a cooky fellow who likes to pose riddles and bet on them. If you’re stumped for answers, we got you covered. Riddler Barley has no set location, so meeting ...

Scan them to solve. Near the center of the port is a squad of Riddler bots in a cage. Use the Voice Synthesizer to order them across the little bridge onto the green smudge. Once they're all in ...