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 ...

Stalking TYGER (inspired by “Silent Knight” from Arkham Asylum) You’ll also find a new Extreme difficulty setting, which you can select both in the campaign and existing Challenge Maps.