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.
Hatsune Miku: Project DIVA X
Live Quest Mode involves the player completing quests by playing songs. In between missions, short interactions and visual novel style dialogues may play out between the player and Vocaloids. The mode consists of two main types of quests - Area Quests and Event Quests. Area quests simply require a song to be completed while gaining a certain score. Later quests throw in other challenges (such as the "cool" pop up randomly changing to "miss" and "sad"). Event quests have special requirements such as requiring the player to play a "special live" consisting of 3 songs in a row. The game also features new "medley" songs, which are fully playable compilations of popular returning and new tracks. The full versions of the songs comprising the medleys cannot be played in full.