Hatsune Miku
A series of rhythm games starting from "" were produced by Sega under license using Hatsune Miku and other Crypton Vocaloids, as well as "fan-made" Vocaloids like Akita Neru. TinierMe also made attire that looks like Miku's for their services, allowing users to make their avatar resemble her. The series has sold 6million copies. "" was developed for the Nintendo 3DS. Miku's appearance in this game is based on the Nendoroid series of figures. Hatsune Miku is also briefly referenced in the game "Recettear", where a young man stargazing sees "The Green-Onion Girl" constellation. Also, in 2013, Saki Fujita voices Fei-Yen HD, a character based on one of Hatsune Miku's modules, in "Super Robot Wars UX"; this appearance does not use Miku's vocal library.
Virtual band
The members of virtual groups are depicted as animated characters, with their own personality, voice, history, and playing style. For example, Alvin, the leader of the Chipmunks, is considered mischievous, and Skeleton Staff's Guitarist Stanton is a party-going underachiever, furthermore, Freen in Green's bassist Sparky is sluggish and has been described as egotistical and pretentious, while Murdoc of Gorillaz is a middle-aged satanic bass player. Another example is Hatsune Miku who does not have a definite personality; because her way of being depends on the fans, her personality changes in each song made by the users of Vocaloid.