This is one of the Animamates that you can't trust. Power hungrey, she motivated galaxia to destroy Siren and Crow to become the main Animamate. She tried to attack Sailor Moon various times. In one of the battles, the scouts were able to knock off one of Nyanko's bracelets turning her half white half black. (Good/bad) So now, bot only did she attack the scouts, she helped them to. Finally Galaxia took off the other bracelet killing her.
~Back to the Tin Nyanko Shrine~