diff.text: Unique to the live-action series, Princess Sailor Moon is a powerful combination of Sailor Moon and Princess Serenity, introduced when Usagi is "possessed" by the spirit of her former self. She originally appears after [[Queen Beryl]] ''[[Shitennouheld (Sailorthe Moon)|Shitennou]]'' hostage in exchange for Mamoru. Silently furious, Sailor Moon transforms into Princess Sailor Moon and halts Queen Beryl using her sword.