Do you want to 100% Batman: Arkham Knight? Then you're going to need to get every pesky Riddler trophy hiding around Gotham -- and there are a ton of 'em.
On July 10, 2014, a small, mysterious game called "Do Not Believe His Lies" was uploaded to the iOS app store. Since then, over 40,000 people have downloaded the app. Nobody has beaten it. Hell, nobody quite knows what it is, either.