Hatsune Miku
Since the success of her Vocaloid 2 package led to an expansion of marketing possibilities, most of the mass marketing has come after her initial release as a response to her popularity and has been on going since 2008. Even with the addition of other Character Vocals, Miku's name continues to be used as the primary source of marketing for Crypton Future Media, to the point where most products for their Vocaloid related products will usually only feature Hatsune Miku's name. In March 2012, the Nomura Research Institute estimated that the sales of all Hatsune Miku brand goods added up into the region of since her release in 2007. Her name is easily the most recognizable of all Vocaloids.
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.