"Proseka" and the Touhou Project collaboration song "Bad Apple!! feat. SEKAI has been added. Sekai ver. is "25 o'clock, night code. "Sung

"Proseka" and the Touhou Project collaboration song "Bad Apple!! feat. SEKAI has been added. Sekai ver. is "25 o'clock, night code. "Sung
In the rhythm & adventure "Project Sekai Colorful Stage! feat. Hatsune Miku" for iOS/Android, "Bad Apple!! feat. SEKAI has been added to the rhythm game music....

The linked article is in Japanese.