Niko Evolution! For Halloween, the residents of Animal Town have dressed up to go trick-or-treating, including the Cures, Satoru and Daifuku, and their friends and classmates. As Niko, in her human form, watches the festivities, Gaou leaves for Animal Town after sensing human laughter and happiness, with Zakuro following after him after realizing that he has awakened. As people come to Iroha's house for trick-or-treating, the diamond on Niko's horn begins to glow, and she reveals that she has regained her strength through the Nikoniko Power of the people and animals of Animal Town...