When the Mane 6 get swapped out with Mario on his quest to save Princess Peach, and chaos erupts everywhere. Equestria must now be saved by the hero of the Mushroom Kingdom, and vice versa.
Twilight writes to Princess Celestia for an explanation of an insidious issue Shining Armor told her about... but she ends up finding a secret that will change her life forever.
When Twilight Sparkles from alternate dimensions begin popping up in Equestria, it is up to Scootaloo to round them all up and find a way to send them home and retrieve her world's Twilight.
When 15 racers compete for 1 million bits, they go through a parody of Mario Karts and a whole bunch of levels, but only one racer will win. They shall go through dangerous worlds, even the human world, but who will come in first place?
A potential story mode for the ill fated project Fighting is Magic. Princess Celestia creates the first annual Equestria Battle Tournament and everyone has their eye on the prize. Including our six heroines, and some familiar foes.
A famous naturalist takes Cheerilee's class on a field trip into the Everfree Forest. This promises adventure, excitement, and other things Quiz really hates.
The Mane Six get teleported to Equestria by a crazy machine to Hero Factory. Ridiculousness and seriousness ensues, with the mares having to help Alpha Team with protecting the galaxy! (Some more than others.)