https://apps.apple.com/app/cytus-ii/id1290687550 This is kinda late but I'm gonna give this info anyway. The character Hatsune Miku is available on Cytus II. It is available for purchase until 31st of May, 2020. It will be permanent upon your purchase. Cytus II is a rhythm game that is sequel to the first game, Cytus. It continues the story where people who lived in the city after the incident. There are a few people who have their stories throughout their life. The story will continue when you play their songs on certain characters as you raise their levels to unlock their stories.