The song was added on 23 June 2010 following the public release of Project DIVA Arcade. When the arcade game was updated to Hatsune Miku: Project DIVA Arcade Future Tone, an Extra Extreme difficulty rhythm game chart for the song was added on 17 July 2014.
It was later featured in Hatsune Miku: Project DIVA 2nd as a DLC song purchasable from the PlayStation Store on 30 September 2010. It had a similar to that of Project DIVA Arcade PV though its graphics were toned down to suit the PlayStation Portable's hardware. It was also featured in Hatsune Miku: Project DIVA Extend with the exact same PV and rhythm game charts from Project DIVA 2nd. It can be unlocked by clearing "melody...". The song would later be featured in Hatsune Miku: Project DIVA Dreamy Theater 2nd and Hatsune Miku: Project DIVA Dreamy Theater Extend with the exact same rhythm game and PV (albeit re-using the high-definition visuals the song had back in Project DIVA Arcade).
In Hatsune Miku: Project DIVA Future Tone, "StargazeR" was included in the Colorful Tone song pack.
Rhythm game info
Hatsune Miku: Project DIVA Arcade
|No. of notes||N/A||387||443||443||447|
Hatsune Miku: Project DIVA 2nd/Extend
|No. of notes||247||371||412||514|
- StargazeR at the Vocaloid Wiki