Hatsune Miku: Project DIVA F
Hatsune Miku: Project DIVA F
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The song, "The MMORPG Addict's Anthem" takes place in an MMORPG that resembles another SEGA series, Phantasy Star Online. More specifically, Phantasy Star Online 2. This is likely in response to a cameo appearance that Hatune Miku made within the title, as their position in the Project DIVA F music video is the same as where they appeared within Phantasy Star Online 2. While the song take place within Phantasy Star Online 2, the lyrics reference RMT (Real Money Trade) and MPKing (Monster Player Killing, a term used for luring monster to attack other players), elements that are practically non-existent in Phantasy Star Online 2 and more prominent within earlier titles in the series.

Also, during this song, the guest vocaloid sings instead of the vocals vocaloid. This is because the guest vocaloid is actually the in-game avatar of the vocals vocaloid.
Contributed by SOGESNAKE
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In the song "Remote Control" the two character vocaloids Rin & Len can be seen holding two different remote controls, one of which is a modified Dreamcast controller with the mic attachment.
Contributed by Frazzle