My Little Pony: Friendship Is Magic Season 2 Episode 4 Luna Eclipsed Episode Title:Luna Eclipsed.Episode Description:Princess Luna, who had been saved by Twilight and her friends from her evil alter persona, Nightmare Moon, visits Ponyville on the festival of Nightmare Night, which centers around Nightmare Moon. The residents all panic at her appearance and outdated mannerisms, but Twilight helps her to acclimate her to the festival. Despite this, Pinkie Pie and several children still run away at her approach, angering her into threatening to cancel the celebration forever. Twilight learns from Pinkie that she is just having fun being scared, so she uses this to show Princess Luna that the children love her but want to have fun being scared on that night. Heartened by this revelation, Princess Luna happily joins in the rest of the festival.