Project SEKAI COLORFUL STAGE! feat. Hatsune Miku (ProSeka, プロセカ) is a mobile game that features character and unit theme songs created by vocal synth producers. These theme songs are organized in this category. For more information about Project SEKAI, please visit the Project SEKAI Wiki or Sekaipedia.

This category is only for songs that were created specifically for Project SEKAI and are featured in the game (i.e. contest entries that don't win wouldn't be listed here).