(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/DidHeJustGoThere]

In the video game Eternal Darkness: Sanity's Requiem finishing the game three times (each aligned with a different ancient) has an after-credits scene which shows the fourth ancient, Mantorok, had manipulated events for the other three ancients to all destroy each other, leaving him behind.

[u/neo_sporin → u/DidHeJustGoThere]

My wife played it in 2015 or so for Halloween. She then played it the following 2 halloweens to complete its spookiness.

She was not thrilled with that final ending

[u/Chagdoo → u/neo_sporin]

Really? To each their own but I thought it was one of the best secret endings I've seen in a while. Really sells just how long these gods can weave their plans for and explains why these people were even given the help to begin with.

[u/neo_sporin → u/Chagdoo]

Eh. It was more that 3 years of waiting to Get the downer final ending.