10 Secret Video Game Endings That Took INCREDIBLE Effort To Unlock
10. The Complete Knightfall Protocol - Batman: Arkham Knight

Batman: Arkham Knight features two endings, one being a more detailed, fleshed-out variation on the "normal" Knightfall Protocol ending that most players experienced.
Though both endings see Batman faking his and Alfred's deaths, the complete ending reveals an extended epilogue, where new Mayor Jim Gordon is heading to the wedding of his daughter Barbara and Tim Drake. Meanwhile, a couple resembling Bruce Wayne's parents are mugged in alley, before a shadowy figure resembling Batman attacks the assailants.
It's a neat tag which lends additional context to the game's ending, but unlocking it is quite the Herculean task indeed.
Players can only access this complete ending after working through all of the Most Wanted side missions, which includes collecting all 243 Riddler Trophies in order to access The Riddler.
Even if you're using a video guide to find all the trophies, it's a massively overwhelming task that's hardly worth an extra two-minute cutscene.
Unsurprisingly, a lot of people saved themselves the time and just watched the extended ending on YouTube (as you can, below).