The Batman: Arkham City ending is an incredibly controversial one.
If you were at the game's midnight launch, rushed home and played it all night with out of this world Batman form, there's a chance you might have seen it already.
Don't worry, your jaw will close naturally over the next few days.
It's the kind of thing we're surprised got past DC Publishing, but when we asked Rocksteady boss Sefton Hill about DC's reaction to 'the ending' of Arkham City he could only applaud the amount of freedom and trust placed on the developer by The Dark Knight's owner.
What happens at the end of Batman: Arkham City? We'll never tell and neither will Sefton. It's something you have to see for yourself.
Watch this interview segment to see what Sefton Hill had to say: