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.
Vocaloid 2
Crypton Future Media had produced vocals for this version of the software Renders of the beta vocals could be heard in various mediums. Meiko was used in the song on the album . Originally, the song used Meiko's original Vocaloid vocal. Luka's Append vocal was used on the album for the song "Hoshizora to Yuki no Butōkai (Zeal mix)". The promotional album "Vocalo Append" used a beta of Luka's "Soft" Append. Miku's English vocal in particular was low quality and was not released in the engine for this reason. The vocals were announced to have been dropped in favor of Vocaloid 3 productions on December 1, 2011. Songs using the beta versions also featured in "".