"Downloader" is a progressive house song by Taishi, featuring Hatsune Miku. The original mix of the song was released exclusively as the title track of the album Downloader, which also included a remix of the song by Nhato.
A shortened mix of the song was released on Niconico featuring a 3D PV by Studio DEEN, a veteran anime production company. Featuring a modification of Lat's Miku model with clothing designed by Ohara Tometa (QP:flapper), the PV was bundled on DVD with the Downloader album's limited edition.
The song and PV are based off Miku's installation, referencing her character's status as a "virtual diva" that was established with songs like "Packaged" and "Koisuru VOC@LOID". Additionally, the PV prominently references Miku's character item, the spring onion.