A brilliant mare named Source Code is requested to report to Princess Luna's castle for...a rather unusual reason

Twilight and her friends visit Cozy Glow in Tartarus to give her a chance to redeem herself

Cozy Glow wakes up one day and it occurs she was never a villain

Alternate version on Season 5 finale, here Twilight manages to get out of alternate timelines and stop Starlight Glimmer from changing the past. After returning to original timeline, Twilight knows what to do with her.

Starlight Glimmer accidentally confessed love to Twilight Sparkle. She doesn't know that Twilight feels the same towards her.

Alternate version of "The ending of The End" both episodes, where Cozy Glow joins protagonists and supports them in the Ultimate Fight for the fate of Equestria