Rocket To Insanity created a tragic end to the Cupcakes story... It was All Just Rainbow Dash's Nightmare, and it drove her so insane that she lost her mind and killed Pinkie. This alternate ending inspired another Revised Ending, possibly one of the only Fix Fics made to repair a situation that the fans actually made worse.
That revised ending is... well, you know what you're reading. It's a fanfic far more in character with the show, showing exactly how the ponies would react to Rainbow Dash having this nightmare and committing attempted murder in the show, if that ever happened. They'd hug it out and apologize.
Can be found here
This My Little Pony: Friendship Is Magic Fanfic contains examples of the following tropes:
- All Just a Dream: Cupcakes never happened.... in real life anyway. It was poor Rainbow's nightmare.
- Dark Fic: Defied.
- Easily Forgiven: Pinkie immediately forgives Dash before she even tells her about the nightmares.
- Fallen Hero: Just barely avoided by Rainbow Dash, who apologizes to everyone, especially Pinkie.
- Hero Killer: Avoided in this fic. Everybody Lives!
- My God, What Have I Done?: Rainbow's reaction to nearly killing Pinkie.
- Recursive Fanfiction of a Recursive Fanfiction.
- Revised Ending
- Scars Are Forever: Pinkie carries the scars from Rainbow's attack for the rest of her life. But she's pretty okay with it, actually.
- What the Hell, Hero?