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.
Miku Flick/02
Unlike its predecessor, the game featured vocaloids other than Hatsune Miku, including Kagamine Len, Kagamine Rin and Megurine Luka as well as duet songs whereby two vocaloids would sing together for a song. The game also included a new "Extreme" difficulty mode, which provided players with a difficulty between that of the "Hard" and "Break the Limit" modes, retained from the original. The game also provided additional Downloadable Content via the In-App Purchases system that would include new songs and seasonal costumes. The additional "Replay Mode" was later added, allowing players to save a replay of their performance and share it with friends.