9 HUGE Video Game Spoilers That Were Ruined By Marketing

7. A Song Revealed Joker's Death In Batman: Arkham City

Coming just a week before the release of the full game, Arkham City's soundtrack was likely meant to exemplify certain aspects of the full story - though it required knowledge of said story for that to work.

Case in point? Coheed & Cambria's song "Deranged", which was sang from the point of view of the Joker... after he's dead.

Lyrics like "Who will be your pretty little enemy?" and "I promise you will always remember me" established a consequence-laden tone, and there's even a line that says "The joke's on you, poison me", foreshadowing how Joker dies from the effects of a long-acting poison right at the close of the story.

Of course, Joker's death is one of the biggest twists in gaming history... for anyone who didn't listen to this song.