Gameloft's My Little Pony Game has officially released the League of Evil event based around the comics. This one includes the usual story and extra stuff to earn and purchase. An exact description:
LEAGUE OF EVIL: Everypony wants to enjoy a normal Nightmare Night, but the Villain League has other plans. Maybe the best way to beat a villain is with a villain... or at least, a former villain!
Check out screencaps below.
Thanks to Explosionmare for the heads up.