Catsy is the second best i like from the four sisters. She wears a fluffy purple tutu and she wears a purple suit with black lines, and her hair has cat ears in it. Catsy turned good in the episode "Enemies no more" She tried to get Reni from Rei's temple and she failed because Tuxedo Mask took her away from Catsy. Then Mars fired with her powers and Casy got hurt and fell down. Then Rubius came and asked what happened to Reni and she said she got away and then Rubius got mad at her then said she was worthless and he couldnt stand being near her. Catsy got sad then rubius gave her a nega bomb that would destroy Tokyo. Mars then said for her not to use it but then Jupiter and Venus came and used their powers at the bomb. Then Catsy felt that no one loved her and she attacked the scouts. Just as Jupiter was about to kick Catsy Mars got in the way telling them not to hurt her. They were surprised but Mars told them she still had good in her just that she was following th wrong path. So then Mars told sailor moon to use her crystal on Catsy so then she did and it worked and thats how she got healed. 
