Mulia first appears in the episode MMMystery on the Friendship Express aboard the train to Canterlot. She boasts about her "mousse moose", claiming it will win first prize at the National Dessert Contest. The next morning, Mulia comes under suspicion when the Cakes' cake is damaged. Pinkie Pie accuses Mulia of sabotage, creating a vivid fantasy of Mulia, clad as a ninja, knocking Pinkie out and slicing up the cake, which reduces Mulia to a quivering wreck. Mulia Mild makes a brief cameo in Equestria Games, in a slightly blurry sweeping shot of the Crystal Empire stadium.