One of the characters available in THE iDOLM@STER: Cinderella Girls.
Her basic card availability is "Rare", but you win your first copy of her Rare card after defeating her in the tutorial. Miku later received three S Rare-rank series of cards, where her titles became "Sexy Cat", "Charming Cat" and "Anniversary Cat".
Source: project-imas wiki
In a collaboration between the two Mobile games, Cinderella Girls and Granblue Fantasy, she also appears as a guest character in Granblue Fantasy.