To steal energy for the Makaiju
During the Snow White and the Seven Dwarfs play, in which Mamoru was Prince Charming and An was Snow White (with the intent of kissing Mamoru), Ail, partly out of disappointment that he did not get the part of Prince Charming (so he could kiss Usagi, who in turn did not get the part of Snow White), and partly to gather energy for the Hell Tree, sent Pierrot to crash the play and drain energy from the audience. Bipierrot even threw a giant ball at An to knock her backwards, and Mamoru caught her as she fell, though his nose was hit in the process. Usagi transformed into Sailor Moon, but Bipierrot attacked her with her umbrella, until the Moonlight Knight arrived. The other Sailor Senshi appeared, and Sailor Mars performed Akuryo Taisan onto her face, and she was then frozen by Sailor Mecury's Sabao Spray Freezing. Sailor Moon proceeded to destroy Bipierrot with her scepter.
- Pierrot looks like Pennywise from Stephen King's It.
- In fourth season of the first anime series, a Lemures named Mr. Magic Pierrot has a similar name and appearance to Pierrot.