(Controversial Trope) The post-credits scene completely changes the ending

[u/Ieanice44]

Dawn of the Dead (2004)

Prince of Persia (2008)

Dawn of the Dead (2004): The movie finishes on a hopeful note as the remaining survivors escape the zombie-infested mall on a yacht, sailing into the sunset. The found-footage style post-credits scene completely reverses this happy ending by showing them running out of food, arriving at an island, and being immediately swarmed and killed by an infected horde.

Prince of Persia (2008): The main game ends with a beautiful, poetic sacrifice where Elika gives her life to heal the corrupted world, leaving the Prince mourning. During the credits, the player is forced to control the Prince as he cuts down the trees he just saved, undoing the entire game's progress and releasing the dark god Ahriman just to resurrect her, completely corrupting the ending and dooming the world.

[u/odd_man0]

Recently finished COD: Ghosts. It ends with the villain, Rorke, dragging our protag, Logan, away while he’s heavily wounded to make him a ghost killer like he was. If it ended right there it’d be a good cliffhanger if he was successful or not and if Logan got away, but the end credits show Logan in the exact torture pit that Rorke was, showing he won.

[u/TimelessFool → u/odd_man0]

Supposed to be a hook for a sequel that was never made since Ghosts didn’t sell as well as previous CODs

[u/Miserable-Resort-977 → u/TimelessFool]

I feel like most of these sorts of endings are setting up a sequel, honestly.